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, sensitive information from heap memory may be leaked through the decoded pixel data (information disclosure). This occurs under default settings; simply reading a malicious EXR file is sufficient to trigger the issue, without any user interaction. This issue has been patched in version 3.4.8.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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, sensitive information
    from heap memory may be leaked through the decoded pixel data (information disclosure). This occurs under
    default settings; simply reading a malicious EXR file is sufficient to trigger the issue, without any user
    interaction. This issue has been patched in version 3.4.8. (CVE-2026-34543)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-11097124bf advisory.

    Update to 3.4.9.

    ----

    Update to 3.4.8.

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 version 3.4.0 to before version 3.4.8, sensitive information     from heap memory may be leaked through the decoded pixel data (information disclosure). This occurs under     default settings; simply reading a malicious EXR file is sufficient to trigger the issue, without any user     interaction. This issue has been patched in version 3.4.8. (CVE-2026-34543)

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

ID	Name	Product	Family	Type	Severity
464478	Echo: openexr: security update to 3.1.13-2	Tenable Cloud Security	Echo Local Security Checks	Local	high
464478	Echo: openexr: security update to 3.1.13-2	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
310695	Fedora 44 : mingw-openexr (2026-11097124bf)	Nessus	Fedora Local Security Checks	Local	high
304703	Linux Distros Unpatched Vulnerability : CVE-2026-34543	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-34543

high

Tenable Plugins

high

high

high

high