Pillow is a Python imaging library. Prior to 12.3.0, Pillow's public rank-filter API can trigger a native heap out-of-bounds write when given a very large odd filter size because ImageFilter.RankFilter.filter() calls image.expand(size // 2, size // 2) before rank-filter size validation and ImagingExpand() computes output dimensions with unchecked signed int arithmetic. This issue is fixed in version 12.3.0.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2013 advisory.

    Pillow is a Python imaging library. Prior to 12.3.0, when Pillow loads an uncompressed McIdas AREA image     from a filename through the mmap raw codec path, attacker-controlled header words can set a row stride     smaller than the natural row width, causing pixel access such as Image.tobytes(), getpixel, convert, or     save to read beyond the mapped region and disclose adjacent process memory or fault. This issue is fixed     in version 12.3.0. (CVE-2026-54058)

    Pillow is a Python imaging library. Prior to 12.3.0, Pillow's public rank-filter API can trigger a native     heap out-of-bounds write when given a very large odd filter size because ImageFilter.RankFilter.filter()     calls image.expand(size // 2, size // 2) before rank-filter size validation and ImagingExpand() computes     output dimensions with unchecked signed int arithmetic. This issue is fixed in version 12.3.0.
    (CVE-2026-59197)

    Pillow is a Python imaging library. From 5.2.0 until 12.3.0, Pillow's TGA RLE encoder reads past its     packed row buffer when saving a mode 1 image with TGA RLE compression, allowing adjacent process heap     bytes to be copied into the generated TGA file. This issue is fixed in version 12.3.0. (CVE-2026-59198)

    Pillow is a Python imaging library. Prior to 12.3.0, Pillow public image coordinate APIs can trigger a     native heap out-of-bounds write when given coordinates near the signed 32-bit integer limits in     Image.paste(), Image.crop(), or Image.alpha_composite(). This issue is fixed in version 12.3.0.
    (CVE-2026-59199)

    Pillow is a Python imaging library. From 5.1.0 until 12.3.0, PdfParser.PdfStream.decode() in     PIL/PdfParser.py calls zlib.decompress() with bufsize set to the PDF stream Length field without bounding     the decompressed output size, allowing a crafted FlateDecode PDF stream to exhaust memory from a small     file. This issue is fixed in version 12.3.0. (CVE-2026-59200)

    Pillow is a Python imaging library. From 8.2.0 through 12.2.0, src/libImaging/Jpeg2KDecode.c accumulates     total_component_width across every tile in a JPEG2000 image instead of recomputing it per tile, allowing a     crafted tiled JPEG2000 file to force substantially higher transient memory usage and trigger out-of-memory     failures during decoding. This issue is fixed in version 12.3.0. (CVE-2026-59204)

    Pillow is a Python imaging library. Prior to 12.3.0, Pillow's ImageCms.ImageCmsTransform.apply(im, imOut)     API can trigger controlled native heap corruption when the caller supplies an output image whose mode does     not match the transform's declared output mode. This issue is fixed in version 12.3.0. (CVE-2026-59205)

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 python-pillow installed on the remote host is prior to 2.0.0-23.gitd1c6db8. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3839 advisory.

    Pillow is a Python imaging library. Prior to 12.3.0, when Pillow loads an uncompressed McIdas AREA image     from a filename through the mmap raw codec path, attacker-controlled header words can set a row stride     smaller than the natural row width, causing pixel access such as Image.tobytes(), getpixel, convert, or     save to read beyond the mapped region and disclose adjacent process memory or fault. This issue is fixed     in version 12.3.0. (CVE-2026-54058)

    Pillow is a Python imaging library. Prior to 12.3.0, Pillow's public rank-filter API can trigger a native     heap out-of-bounds write when given a very large odd filter size because ImageFilter.RankFilter.filter()     calls image.expand(size // 2, size // 2) before rank-filter size validation and ImagingExpand() computes     output dimensions with unchecked signed int arithmetic. This issue is fixed in version 12.3.0.
    (CVE-2026-59197)

    Pillow is a Python imaging library. Prior to 12.3.0, Pillow public image coordinate APIs can trigger a     native heap out-of-bounds write when given coordinates near the signed 32-bit integer limits in     Image.paste(), Image.crop(), or Image.alpha_composite(). This issue is fixed in version 12.3.0.
    (CVE-2026-59199)

    Pillow is a Python imaging library. Prior to 12.3.0, Pillow's ImageCms.ImageCmsTransform.apply(im, imOut)     API can trigger controlled native heap corruption when the caller supplies an output image whose mode does     not match the transform's declared output mode. This issue is fixed in version 12.3.0. (CVE-2026-59205)

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 Redhat Enterprise Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:50223 advisory.

    Red Hat Satellite is a system management solution that allows organizations     to configure and maintain their systems without the necessity to provide     public Internet access to their servers or other client systems. It     performs provisioning and configuration management of predefined standard     operating environments.

    Security Fix(es):

    * puppet-agent: Out-of-bounds read & write in RFC 3211 KEK Unwrap (CVE-2025-9230)

    * puppetserver: HTTP request smuggling via chunked extension quoted-string parsing (CVE-2026-2332)

    * python-pillow: Pillow: Denial of Service via crafted BDF font file (CVE-2026-55379)

    * python-pillow: Pillow: Denial of Service via crafted GD 2.x image file (CVE-2026-55380)

    * python-pillow: Pillow: Denial of Service via crafted PCF font data (CVE-2026-54059)

    * python-pillow: Pillow: Denial of Service via excessive memory allocation when processing font files     (CVE-2026-54060)

    * python-pillow: Pillow: Native heap out-of-bounds write (CVE-2026-59197)

    * python-pyjwt: PyJWT: Authentication bypass due to forged JSON Web Tokens (CVE-2026-48526)

    * rubygem-faraday-cookie_jar: Faraday: Denial of Service via crafted nested query strings (CVE-2026-54297)

    * rubygem-faraday-em_http: Faraday: Denial of Service via crafted nested query strings (CVE-2026-54297)

    * rubygem-faraday-em_synchrony: Faraday: Denial of Service via crafted nested query strings     (CVE-2026-54297)

    * rubygem-faraday-excon: Faraday: Denial of Service via crafted nested query strings (CVE-2026-54297)

    * rubygem-faraday: Faraday: Denial of Service via crafted nested query strings (CVE-2026-54297)

    * rubygem-faraday-httpclient: Faraday: Denial of Service via crafted nested query strings (CVE-2026-54297)

    * rubygem-faraday_middleware: Faraday: Denial of Service via crafted nested query strings (CVE-2026-54297)

    * rubygem-faraday-multipart: Faraday: Denial of Service via crafted nested query strings (CVE-2026-54297)

    * rubygem-faraday-net_http: Faraday: Denial of Service via crafted nested query strings (CVE-2026-54297)

    * rubygem-faraday-net_http_persistent: Faraday: Denial of Service via crafted nested query strings     (CVE-2026-54297)

    * rubygem-faraday-patron: Faraday: Denial of Service via crafted nested query strings (CVE-2026-54297)

    * rubygem-faraday-rack: Faraday: Denial of Service via crafted nested query strings (CVE-2026-54297)

    * rubygem-faraday-retry: Faraday: Denial of Service via crafted nested query strings (CVE-2026-54297)

    * rubygem-katello: missing repository authorization in content_uploads exposes cross-product content     existence (CVE-2026-12515)

    * rubygem-nokogiri: Nokogiri: Denial of Service or Information Disclosure via invalid encoding handling     (CVE-2026-57236)

    * libsolv: Heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv     page data (CVE-2026-48864)

    Bug Fix(es):

    * scap-security-guide-satellite: Update of scap-security-guide-satellite package sources

    * 'Katello::Errors::Pulp3Error: nextval: reached maximum value of sequence     container_blobmanifest_id_seq' during container image sync

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 10 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:50336 advisory.

    Red Hat Ansible Automation Platform provides an enterprise framework for building, deploying and managing     IT automation at scale. IT Managers can provide top-down guidelines on how automation is applied to     individual teams, while automation developers retain the freedom to write tasks that leverage existing     knowledge without the overhead. Ansible Automation Platform makes it possible for users across an     organization to share, vet, and manage automation content by means of a simple, powerful, and agentless     language.

    Security Fix(es):

    * automation-controller: PyJWT: Authentication bypass due to forged JSON Web Tokens (CVE-2026-48526)
    * automation-eda-controller: ExternalEventStreamViewSet trusts Subject header without validation and leaks     expected DN (CVE-2026-12383)
    * automation-eda-controller: Authentication bypass in Event-Driven Ansible via forged HTTP header     (CVE-2026-18141)
    * automation-gateway-proxy: Go net package: Denial of Service via long CNAME response in LookupCNAME     (CVE-2026-33811)
    * python3.12-aiohttp: Arbitrary code execution via untrusted input to CookieJar.load() (CVE-2026-34993)
    * python3.12-daphne: daphne: Denial of Service via excessive WebSocket message size (CVE-2026-44545)
    * python3.12-pillow: Denial of Service via crafted GD 2.x image file (CVE-2026-55380)
    * python3.12-pillow: Denial of Service via crafted BDF font file (CVE-2026-55379)
    * python3.12-pillow: Denial of Service via excessive memory allocation when processing font files     (CVE-2026-54060)
    * python3.12-pillow: Denial of Service via crafted PCF font data (CVE-2026-54059)
    * python3.12-pillow: Native heap out-of-bounds write (CVE-2026-59197)
    * python3.12-pyasn1: Denial of Service via crafted ASN.1 REAL values (CVE-2026-59886)
    * python3.12-pyasn1: Denial of Service via crafted ASN.1 OBJECT IDENTIFIER (CVE-2026-59885)
    * receptor: quic-go: Denial of Service via excessive memory allocation in HTTP/3 trailers (CVE-2026-40898)

    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.

    For details about this release, refer to the release notes 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 these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:50319 advisory.

    Red Hat Ansible Automation Platform provides an enterprise framework for building, deploying and managing     IT automation at scale. IT Managers can provide top-down guidelines on how automation is applied to     individual teams, while automation developers retain the freedom to write tasks that leverage existing     knowledge without the overhead. Ansible Automation Platform makes it possible for users across an     organization to share, vet, and manage automation content by means of a simple, powerful, and agentless     language.

    Security Fix(es):

    * automation-controller: PyJWT: Authentication bypass due to forged JSON Web Tokens (CVE-2026-48526)
    * automation-eda-controller: ExternalEventStreamViewSet trusts Subject header without validation and leaks     expected DN (CVE-2026-12383)
    * automation-gateway-proxy: Go net package: Denial of Service via long CNAME response in LookupCNAME     (CVE-2026-33811)
    * python3.12-aiohttp: Arbitrary code execution via untrusted input to CookieJar.load() (CVE-2026-34993)
    * python3.12-daphne: daphne: Denial of Service via excessive WebSocket message size (CVE-2026-44545)
    * python3.12-pillow: Denial of Service via crafted PCF font data (CVE-2026-54059)
    * python3.12-pillow: Denial of Service via excessive memory allocation when processing font files     (CVE-2026-54060)
    * python3.12-pillow: Denial of Service via crafted BDF font file (CVE-2026-55379)
    * python3.12-pillow: Denial of Service via crafted GD 2.x image file (CVE-2026-55380)
    * python3.12-pillow: Native heap out-of-bounds write (CVE-2026-59197)
    * python3.12-pyasn1: Denial of Service via crafted ASN.1 REAL values (CVE-2026-59885)
    * python3.12-pyasn1: Denial of Service via crafted ASN.1 OBJECT IDENTIFIER (CVE-2026-59886)
    * receptor: quic-go: Denial of Service via excessive memory allocation in HTTP/3 trailers (CVE-2026-40898)
    * receptor: golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries     (CVE-2026-27145)

    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.

    For details about this release, refer to the release notes 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 these issues but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1435:02 advisory.

    * Pillow: Pillow: Native heap out-of-bounds write (CVE-2026-59197)
      * Pillow: Pillow: Memory disclosure or denial of service via crafted McIdas AREA image (CVE-2026-54058)

Tenable has extracted the preceding description block directly from the MiracleLinux 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 AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:48021 advisory.

    * Pillow: Pillow: Native heap out-of-bounds write (CVE-2026-59197)
      * Pillow: Pillow: Memory disclosure or denial of service via crafted McIdas AREA image (CVE-2026-54058)

Tenable has extracted the preceding description block directly from the AlmaLinux 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 RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:48021 advisory.

    * Pillow: Pillow: Native heap out-of-bounds write (CVE-2026-59197)

    * Pillow: Pillow: Memory disclosure or denial of service via crafted McIdas AREA image (CVE-2026-54058)

Tenable has extracted the preceding description block directly from the RockyLinux 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 Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-48021 advisory.

    [5.1.1-23]
    - Security fix for CVE-2026-54058, CVE-2026-59197     Resolves: RHEL-211857, RHEL-211848

Tenable has extracted the preceding description block directly from the Oracle Linux 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 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:48021 advisory.

    Python is an interpreted, interactive, object-oriented programming language, which includes modules,     classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to     many system calls and libraries, as well as to various windowing systems.

    Security Fix(es):

    * Pillow: Pillow: Native heap out-of-bounds write (CVE-2026-59197)

    * Pillow: Pillow: Memory disclosure or denial of service via crafted McIdas AREA image (CVE-2026-54058)

    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 these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3268-1 advisory.

    - CVE-2026-54058: out-of-bounds read via attacker-controlled row stride on `mmap` path (bsc#1271419).
    - CVE-2026-54059: bomb protection bypass via PCF font loading due to `Image.frombytes()` being called     without       `_decompression_bomb_check()` (bsc#1270409).
    - CVE-2026-54060: excessive allocation due to `FontFile.compile()`: `Image.new()` being called without       `_decompression_bomb_check()` (bsc#1270410).
    - CVE-2026-55379: bomb protection bypass via font loading due to `Image.new()` being called without       `_decompression_bomb_check()` (bsc#1270411).
    - CVE-2026-55380: unchecked 4.3 GB C-heap allocation due to image dimensions being accepted without       `_decompression_bomb_check()` in `GdImageFile._open()` (bsc#1270412).
    - CVE-2026-59197: heap out-of-bounds write in `ImageFilter.RankFilter` via integer overflow in     `ImagingExpand`       (bsc#1271418).
    - CVE-2026-59198: out-of-bounds heap data copied into file generated by TGA RLE encoder (bsc#1271420).
    - CVE-2026-59199: heap out-of-bounds write in `Image.paste()` and `Image.crop()` via signed coordinate     overflow       (bsc#1271421).
    - CVE-2026-59200: decompression bomb DoS via `PdfParser.PdfStream.decode()` (bsc#1271422).
    - CVE-2026-59204: denial of service through memory exhaustion via JPEG2000 tiled decoder (bsc#1271424).
    - CVE-2026-59205: controlled heap out-of-bounds write in `ImageCmsTransform.apply()` via output mode     mismatch       (bsc#1271425).

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-fc2ded926e advisory.

    Backport fixes for CVE-2026-59197 and CVE-2026-54058.

    ----

    Fix CVE-2026-55380, CVE-2026-54060, CVE-2026-54059, CVE-2026-55379, CVE-2026-55798

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 SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3084-1 advisory.

    This update for python-Pillow fixes the following issues

    - CVE-2026-54058: out-of-bounds read via attacker-controlled row stride on `mmap` path (bsc#1271419).
    - CVE-2026-59197: heap out-of-bounds write in `ImageFilter.RankFilter` via integer overflow in     `ImagingExpand`       (bsc#1271418).
    - CVE-2026-59198: out-of-bounds heap data copied into file generated by TGA RLE encoder (bsc#1271420).
    - CVE-2026-59199: heap out-of-bounds write in `Image.paste()` and `Image.crop()` via signed coordinate     overflow       (bsc#1271421).
    - CVE-2026-59200: decompression bomb DoS via `PdfParser.PdfStream.decode()` (bsc#1271422).
    - CVE-2026-59204: denial of service through memory exhaustion via JPEG2000 tiled decoder (bsc#1271424).
    - CVE-2026-59205: controlled heap out-of-bounds write in `ImageCmsTransform.apply()` via output mode     mismatch

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

  - Pillow is a Python imaging library. Prior to 12.3.0, Pillow's public rank-filter API can trigger a native     heap out-of-bounds write when given a very large odd filter size because ImageFilter.RankFilter.filter()     calls image.expand(size // 2, size // 2) before rank-filter size validation and ImagingExpand() computes     output dimensions with unchecked signed int arithmetic. This issue is fixed in version 12.3.0.
    (CVE-2026-59197)

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

ID	Name	Product	Family	Severity
332016	Amazon Linux 2023 : python3-pillow, python3-pillow-devel, python3-pillow-tk (ALAS2023-2026-2013)	Nessus	Amazon Linux Local Security Checks	high
331978	Amazon Linux 2 : python-pillow, --advisory ALAS2-2026-3839 (ALAS-2026-3839)	Nessus	Amazon Linux Local Security Checks	high
331972	RHEL 8 / 9 : Satellite 6.16.12 Async Update (Important) (RHSA-2026:50223)	Nessus	Red Hat Local Security Checks	medium
331965	RHEL 10 / 9 : Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update (Important) (RHSA-2026:50336)	Nessus	Red Hat Local Security Checks	high
331963	RHEL 8 / 9 : Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update (Important) (RHSA-2026:50319)	Nessus	Red Hat Local Security Checks	high
331868	MiracleLinux 8 : python-pillow-5.1.1-23.el8_10 (AXSA:2026-1435:02)	Nessus	Miracle Linux Local Security Checks	high
331651	AlmaLinux 8 : python-pillow (ALSA-2026:48021)	Nessus	Alma Linux Local Security Checks	high
331379	RockyLinux 8 : python-pillow (RLSA-2026:48021)	Nessus	Rocky Linux Local Security Checks	high
331368	Oracle Linux 8 : python-pillow (ELSA-2026-48021)	Nessus	Oracle Linux Local Security Checks	high
330866	RHEL 8 : python-pillow (RHSA-2026:48021)	Nessus	Red Hat Local Security Checks	high
330318	SUSE SLED15 / SLES15 Security Update : python-Pillow (SUSE-SU-2026:3268-1)	Nessus	SuSE Local Security Checks	high
328435	Fedora 43 : python-pillow (2026-fc2ded926e)	Nessus	Fedora Local Security Checks	high
327748	SUSE SLES15 Security Update : python-Pillow (SUSE-SU-2026:3084-1)	Nessus	SuSE Local Security Checks	high
327110	Linux Distros Unpatched Vulnerability : CVE-2026-59197	Nessus	Misc.	high

Detections

Analytics

CVE-2026-59197

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Tenable Plugins

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