OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9, internal_exr_undo_piz() advances the working wavelet pointer with signed 32-bit arithmetic. Because nx, ny, and wcount are int, a crafted EXR file can make this product overflow and wrap. The next channel then decodes from an incorrect address. The wavelet decode path operates in place, so this yields both out-of-bounds reads and out-of-bounds writes. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.

rocky_linux RLSA-2026:19359: RLSA-2026:19359: openexr security update (Important)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:19359 advisory.

    OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image     processing and storage. This document presents a brief overview of OpenEXR and explains concepts that are     specific to this format.  This package containes the binaries for OpenEXR.

    Security Fix(es):

    * OpenEXR: OpenEXR: Arbitrary code execution and information disclosure via crafted EXR file     (CVE-2026-34588)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:19146 advisory.

    OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image     processing and storage. This document presents a brief overview of OpenEXR and explains concepts that are     specific to this format.  This package containes the binaries for OpenEXR.

    Security Fix(es):

    * OpenEXR: OpenEXR: Arbitrary code execution and information disclosure via crafted EXR file     (CVE-2026-34588)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:17656 advisory.

    OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image     processing and storage. This document presents a brief overview of OpenEXR and explains concepts that are     specific to this format.  This package containes the binaries for OpenEXR.

    Security Fix(es):

    * OpenEXR: OpenEXR: Arbitrary code execution and information disclosure via crafted EXR file     (CVE-2026-34588)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:17659 advisory.

    OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image     processing and storage. This document presents a brief overview of OpenEXR and explains concepts that are     specific to this format.  This package containes the binaries for OpenEXR.

    Security Fix(es):

    * OpenEXR: OpenEXR: Arbitrary code execution and information disclosure via crafted EXR file     (CVE-2026-34588)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:17660 advisory.

    OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image     processing and storage. This document presents a brief overview of OpenEXR and explains concepts that are     specific to this format.  This package containes the binaries for OpenEXR.

    Security Fix(es):

    * OpenEXR: OpenEXR: Arbitrary code execution and information disclosure via crafted EXR file     (CVE-2026-34588)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:17658 advisory.

    Please update

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 9 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:15887 advisory.

    * OpenEXR: OpenEXR: Arbitrary code execution and information disclosure via crafted EXR file     (CVE-2026-34588)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote RockyLinux 10 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:15888 advisory.

    * OpenEXR: OpenEXR: Arbitrary code execution and information disclosure via crafted EXR file     (CVE-2026-34588)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:15887 advisory.

    * OpenEXR: OpenEXR: Arbitrary code execution and information disclosure via crafted EXR file     (CVE-2026-34588)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 10 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-15888 advisory.

    [3.1.10-8.2]
    - fix CVE-2026-34588

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-15887 advisory.

    [3.1.1-3.2]
    - fix CVE-2026-34588

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 9 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2026-604:03 advisory.

    * OpenEXR: OpenEXR: Arbitrary code execution and information disclosure via crafted EXR file     (CVE-2026-34588)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:15888 advisory.

    OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image     processing and storage. This document presents a brief overview of OpenEXR and explains concepts that are     specific to this format.  This package containes the binaries for OpenEXR.

    Security Fix(es):

    * OpenEXR: OpenEXR: Arbitrary code execution and information disclosure via crafted EXR file     (CVE-2026-34588)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8259-1 advisory.

    Quang Luong discovered that OpenEXR incorrectly handled sample count accumulation when processing deep     scan line image files. An attacker could possibly use this issue to cause OpenEXR to crash, resulting in a     denial of service, or execute arbitrary code. (CVE-2026-27622)

    It was discovered that OpenEXR had an integer overflow in the PXR24 decoder. An attacker could possibly     use this issue to cause OpenEXR to crash, resulting in a denial of service, or execute arbitrary code.
    This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-34380)

    Quang Luong discovered that OpenEXR had a signed integer overflow in the PIZ decoder. An attacker could     possibly use this issue to cause OpenEXR to crash, resulting in a denial of service, or execute arbitrary     code. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-34588)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:15887 advisory.

    OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image     processing and storage. This document presents a brief overview of OpenEXR and explains concepts that are     specific to this format.  This package containes the binaries for OpenEXR.

    Security Fix(es):

    * OpenEXR: OpenEXR: Arbitrary code execution and information disclosure via crafted EXR file     (CVE-2026-34588)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1612 advisory.

    OpenEXR provides the specification and reference implementation of the EXR file format, an image storage     format for the motion picture industry. From 3.4.0 to before 3.4.9, a missing bounds check on the     dataWindow attribute in EXR file headers allows an attacker to trigger a signed integer overflow in     generic_unpack(). By setting dataWindow.min.x to a large negative value, OpenEXRCore computes an enormous     image width, which is later used in a signed integer multiplication that overflows, causing the process to     terminate with SIGILL via UBSan. This vulnerability is fixed in 3.4.9. (CVE-2026-34378)

    OpenEXR provides the specification and reference implementation of the EXR file format, an image storage     format for the motion picture industry. From 3.2.0 to before 3.2.7, 3.3.9, and 3.4.9, a signed integer     overflow exists in undo_pxr24_impl() in src/lib/OpenEXRCore/internal_pxr24.c at line 377. The expression     (uint64_t)(w * 3) computes w * 3 as a signed 32-bit integer before casting to uint64_t. When w is large,     this multiplication constitutes undefined behavior under the C standard. On tested builds (clang/gcc     without sanitizers), two's-complement wraparound commonly occurs, and for specific values of w the wrapped     result is a small positive integer, which may allow the subsequent bounds check to pass incorrectly. If     the check is bypassed, the decoding loop proceeds to write pixel data through dout, potentially extending     far beyond the allocated output buffer. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.
    (CVE-2026-34380)

    OpenEXR provides the specification and reference implementation of the EXR file format, an image storage     format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9,     internal_exr_undo_piz() advances the working wavelet pointer with signed 32-bit arithmetic. Because nx,     ny, and wcount are int, a crafted EXR file can make this product overflow and wrap. The next channel then     decodes from an incorrect address. The wavelet decode path operates in place, so this yields both out-of-     bounds reads and out-of-bounds writes. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.
    (CVE-2026-34588)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of OpenEXR installed on the remote host is prior to 1.7.1-8. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3267 advisory.

    OpenEXR provides the specification and reference implementation of the EXR file format, an image storage     format for the motion picture industry. From version 3.4.0 to before version 3.4.8, a crafted B44 or B44A     EXR file can cause an out-of-bounds write in any application that decodes it via exr_decoding_run().
    Consequences range from immediate crash (most likely) to corruption of adjacent heap allocations (layout-     dependent). This issue has been patched in version 3.4.8. (CVE-2026-34544)

    OpenEXR provides the specification and reference implementation of the EXR file format, an image storage     format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9,     internal_exr_undo_piz() advances the working wavelet pointer with signed 32-bit arithmetic. Because nx,     ny, and wcount are int, a crafted EXR file can make this product overflow and wrap. The next channel then     decodes from an incorrect address. The wavelet decode path operates in place, so this yields both out-of-     bounds reads and out-of-bounds writes. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.
    (CVE-2026-34588)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-502486fc61 advisory.

    Backport several OpenEXRCore security fixes

    - Fixes CVE-2026-34378 / GHSA-v76p-4qvv-vh4g; closes RHBZ#2455493
    - Fixes CVE-2026-34380 / GHSA-q3v8-hw4m-59w5; closes RHBZ#2455534
    - Fixes CVE-2026-34588 / GHSA-588r-cr5c-w6hf; closes RHBZ#2455505
    - Fixes CVE-2026-34589 / GHSA-p8xc-w3q4-h64x; closes RHBZ#2455501
    - Fixes CVE-2026-34379 / GHSA-w88v-vqhq-5p24; closes RHBZ#2455497

    ----

    Backport fix for CVE-2026-34544 in OpenEXRCore

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20605-1 advisory.

    - CVE-2026-34379: misaligned memory write during file decoding can cause a denial of service     (bsc#1261621).
    - CVE-2026-34380: lack of proper check can lead to integer overflow in image decoding (bsc#1261622).
    - CVE-2026-34588: crafted EXR file can lead to out of bound read and write (bsc#1261624).
    - CVE-2026-34589: crafted scanline DWAA file can lead to arbitrary code execution or denial of service     (bsc#1261634).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-cde75a1416 advisory.

    Backport several OpenEXRCore security fixes

    - Fixes CVE-2026-34378 / GHSA-v76p-4qvv-vh4g; closes RHBZ#2455493
    - Fixes CVE-2026-34380 / GHSA-q3v8-hw4m-59w5; closes RHBZ#2455534
    - Fixes CVE-2026-34588 / GHSA-588r-cr5c-w6hf; closes RHBZ#2455505
    - Fixes CVE-2026-34589 / GHSA-p8xc-w3q4-h64x; closes RHBZ#2455501
    - Fixes CVE-2026-34379 / GHSA-w88v-vqhq-5p24; closes RHBZ#2455497

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-c803743b67 advisory.

    Update to openexr-3.3.9.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-d939698c2e advisory.

    Update to openexr-3.3.9.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 45 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-c0f8cde7ad advisory.

    Automatic update for usd-26.03-3.fc45.

    ##### **Changelog**

    ```
    * Wed Apr  8 2026 Benjamin A. Beasley <code@musicinmybrain.net> - 26.03-3
    - Backport several OpenEXRCore security fixes
    - Fixes CVE-2026-34378 / GHSA-v76p-4qvv-vh4g; closes RHBZ#2455493
    - Fixes CVE-2026-34380 / GHSA-q3v8-hw4m-59w5; closes RHBZ#2455534
    - Fixes CVE-2026-34588 / GHSA-588r-cr5c-w6hf; closes RHBZ#2455505
    - Fixes CVE-2026-34589 / GHSA-p8xc-w3q4-h64x; closes RHBZ#2455501
    - Fixes CVE-2026-34379 / GHSA-w88v-vqhq-5p24; closes RHBZ#2455497

    ```

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - OpenEXR provides the specification and reference implementation of the EXR file format, an image storage     format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9,     internal_exr_undo_piz() advances the working wavelet pointer with signed 32-bit arithmetic. Because nx,     ny, and wcount are int, a crafted EXR file can make this product overflow and wrap. The next channel then     decodes from an incorrect address. The wavelet decode path operates in place, so this yields both out-of-     bounds reads and out-of-bounds writes. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.
    (CVE-2026-34588)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the adb096d4-2e72-11f1-acc1-339a1a6999b0 advisory.

    Cary Phillips reports:
    [OpenEXR 3.4.9] addresses the following CVEs:

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
315502	RHEL 9 : openexr (RHSA-2026:19359)	Nessus	Red Hat Local Security Checks	high
315375	RHEL 10 : openexr (RHSA-2026:19146)	Nessus	Red Hat Local Security Checks	high
314750	RHEL 10 : openexr (RHSA-2026:17656)	Nessus	Red Hat Local Security Checks	high
314697	RHEL 9 : openexr (RHSA-2026:17659)	Nessus	Red Hat Local Security Checks	high
314693	RHEL 9 : openexr (RHSA-2026:17660)	Nessus	Red Hat Local Security Checks	high
314690	RHEL 9 : openexr update (Important) (RHSA-2026:17658)	Nessus	Red Hat Local Security Checks	high
314446	AlmaLinux 9 : openexr (ALSA-2026:15887)	Nessus	Alma Linux Local Security Checks	high
314426	RockyLinux 10 : openexr (RLSA-2026:15888)	Nessus	Rocky Linux Local Security Checks	high
314425	RockyLinux 9 : openexr (RLSA-2026:15887)	Nessus	Rocky Linux Local Security Checks	high
314314	Oracle Linux 10 : openexr (ELSA-2026-15888)	Nessus	Oracle Linux Local Security Checks	high
314313	Oracle Linux 9 : openexr (ELSA-2026-15887)	Nessus	Oracle Linux Local Security Checks	high
314303	MiracleLinux 9 : openexr-3.1.1-3.el9_7.2 (AXSA:2026-604:03)	Nessus	Miracle Linux Local Security Checks	high
314286	RHEL 10 : openexr (RHSA-2026:15888)	Nessus	Red Hat Local Security Checks	high
314214	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS : OpenEXR vulnerabilities (USN-8259-1)	Nessus	Ubuntu Local Security Checks	high
313746	RHEL 9 : openexr (RHSA-2026:15887)	Nessus	Red Hat Local Security Checks	high
311329	Amazon Linux 2023 : openexr, openexr-devel, openexr-libs (ALAS2023-2026-1612)	Nessus	Amazon Linux Local Security Checks	high
311215	Amazon Linux 2 : OpenEXR, --advisory ALAS2-2026-3267 (ALAS-2026-3267)	Nessus	Amazon Linux Local Security Checks	high
310538	Fedora 44 : usd (2026-502486fc61)	Nessus	Fedora Local Security Checks	high
310089	openSUSE 16 Security Update : openexr (openSUSE-SU-2026:20605-1)	Nessus	SuSE Local Security Checks	high
307408	Fedora 43 : usd (2026-cde75a1416)	Nessus	Fedora Local Security Checks	high
306616	Fedora 43 : mingw-openexr (2026-c803743b67)	Nessus	Fedora Local Security Checks	high
306608	Fedora 42 : mingw-openexr (2026-d939698c2e)	Nessus	Fedora Local Security Checks	high
305305	Fedora 45 : usd (2026-c0f8cde7ad)	Nessus	Fedora Local Security Checks	high
305103	Linux Distros Unpatched Vulnerability : CVE-2026-34588	Nessus	Misc.	high
305001	FreeBSD : openexr -- multiple vulnerabilities (adb096d4-2e72-11f1-acc1-339a1a6999b0)	Nessus	FreeBSD Local Security Checks	high

Detections

Analytics

CVE-2026-34588

high

Tenable Plugins

Coming Soon

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high