Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/_imaging.c checks positive glyph advances against INT_MAX but does not check negative advances against INT_MIN. Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow in xsize += dx, producing a large positive width from a negative mathematical result. Applications that use getlength(), getsize(), or derived layout, quota, serialization, or allocation calculations can experience logic-integrity errors or resource consumption, while the high-level mask path commonly retains a decompression-bomb check. This issue is fixed in version 13.0.0.

suse_linux SUSE-SU-2026:5194-1: SUSE SLED15 / SLES15 : Security update for python-Pillow (Critical) (SUSE-SU-2026:5194-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:5038-1 advisory.

    - CVE-2026-96636: decompression-bomb protection bypass via multi-frame `seek()` in MPO and DCX     (bsc#1286802).
    - CVE-2026-96637: decompression bomb check bypass in `SpiderImagePlugin.seek()` leads to unbounded     allocation DoS       (bsc#1286801).
    - CVE-2026-96640: PDF append accepts malformed shared page-tree DAG, which can cause resource exhaustion     (bsc#1286798).
    - CVE-2026-96641: reachable undefined behavior in native integer operations can lead to denial of service     or logic       integrity compromise (bsc#1286797).
    - CVE-2026-96642: `TarIO` negative size field causes infinite CPU-spin loop (bsc#1286796).
    - CVE-2026-112390: Denial of Service via infinite loop during crafted MIC image parsing (bsc#1286256).
    - CVE-2026-112391: Denial of Service via unbounded recursion in PDF parser (bsc#1286273).
    - CVE-2026-112392: Denial of Service via zero-size images in rank filters (bsc#1286287).
    - CVE-2026-112393: heap buffer overflow and stale-heap disclosure in _tiffWriteProc when saving compressed     TIFF data       (bsc#1286325).
    - CVE-2026-112394: `P;2L` and `P;4L` decoders may read 1 to 3 bytes past the passed buffer size     (bsc#1286311).
    - CVE-2026-112397: out-of-bounds access in `_imagingmorph` on a zero-width image (bsc#1286314).
    - CVE-2026-112398: heap buffer overflow in FPX JPEG decoding can lead to code execution (bsc#1286406).
    - CVE-2026-112399: Denial of service via crafted APNG image (bsc#1286368).
    - CVE-2026-112400: Denial of Service via memory exhaustion from crafted GIF image (bsc#1286370).
    - CVE-2026-112401: Denial of Service via crafted GIF comments (bsc#1286372).
    - CVE-2026-112402: Denial of service via double free during image transformation (bsc#1286381).
    - CVE-2026-112403: heap buffer overflow in `ImagingJpegDecode` allows for code execution (bsc#1286405).
    - CVE-2026-112405: NULL pointer dereference in `Image.merge` via an unvalidated band 0 (bsc#1286404).
    - CVE-2026-112406: infinite loop in `PdfParser.rewrite_pages` on page tree `Parent` cycle (bsc#1286403).
    - CVE-2026-112891: quadratic GIF comment copying during save (bsc#1286402).
    - CVE-2026-112892: MSP RLE decoder expands a tiny file into unbounded memory (bsc#1286401).
    - CVE-2026-112894: Denial of Service via crafted multi-frame image conversion (bsc#1286408).
    - CVE-2026-112895: Denial of service via crafted PDF during append operations (bsc#1286411).
    - CVE-2026-112896: TIFF encoder `ColorMap` plane-size mismatch causes a heap out-of-bounds read     (bsc#1286400).
    - CVE-2026-112897: `TiffDecode` returns uninitialized memory as pixels for short JPEG strips     (bsc#1286398).
    - CVE-2026-112899: EPS `load(scale)` lets Ghostscript render past the decompression bomb limit     (bsc#1286489).
    - CVE-2026-112900: argument Injection in Ghostscript call can lead to remote code execution (bsc#1286397).
    - CVE-2026-112901: ReDoS in `XbmImagePlugin` can be triggered by 512-byte file (bsc#1286396).
    - CVE-2026-112902: memory disclosure and segfault in libtiff encoder via crafted TIFF tags (bsc#1286804).

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 version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the b9a3fd21-d2af-11f1-bae2-3497f65b111b advisory.

    The Pillow project published security advisories for issues fixed               in release 13.0.0.  They include an argument injection in the               Ghostscript call used for EPS images, heap buffer overflows in               several image decoders that can lead to code execution, and               infinite loops and unbounded memory use when opening crafted               image files.

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.

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

  - Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/_imaging.c
    checks positive glyph advances against INT_MAX but does not check negative advances against INT_MIN.
    Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow in xsize +=
    dx, producing a large positive width from a negative mathematical result. Applications that use
    getlength(), getsize(), or derived layout, quota, serialization, or allocation calculations can experience
    logic-integrity errors or resource consumption, while the high-level mask path commonly retains a
    decompression-bomb check. This issue is fixed in version 13.0.0. (CVE-2026-96641)

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 13.0.0, PILfont text-width accumulation in src/_imaging.c     checks positive glyph advances against INT_MAX but does not check negative advances against INT_MIN.
    Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow in xsize +=     dx, producing a large positive width from a negative mathematical result. Applications that use     getlength(), getsize(), or derived layout, quota, serialization, or allocation calculations can experience     logic-integrity errors or resource consumption, while the high-level mask path commonly retains a     decompression-bomb check. This issue is fixed in version 13.0.0. (CVE-2026-96641)

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

ID	Name	Product	Family	Type	Severity
376269	SUSE SLES15 Security Update : python-Pillow (SUSE-SU-2026:5038-1)	Nessus	SuSE Local Security Checks	Local	critical
373482	FreeBSD : Pillow -- multiple vulnerabilities (b9a3fd21-d2af-11f1-bae2-3497f65b111b)	Nessus	FreeBSD Local Security Checks	Local	critical
477160	Chainguard: nemo-rl-cuda-13.0-mcore: security update to 0.7.0-r11	Tenable Cloud Security	Chainguard Local Security Checks	Local	medium
477160	Chainguard: nemo-rl-cuda-13.0-mcore: security update to 0.7.0-r11	Tenable Self-Hosted Container Security	Chainguard Local Security Checks	Local	medium
476869	SCA: security update for pillow (GHSA-4rm8-3hmm-39fg)	Tenable Cloud Security	SCA Checks	Local	medium
476869	SCA: security update for pillow (GHSA-4rm8-3hmm-39fg)	Tenable Self-Hosted Container Security	SCA Checks	Local	medium
370266	Linux Distros Unpatched Vulnerability : CVE-2026-96641	Nessus	Misc.	Local	medium

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