Pillow is a Python imaging library. Prior to 13.0.0, Pillow's XBM header parser is vulnerable to regular-expression denial of service. In XbmImageFile._open, when an application calls Image.open() on a small crafted XBM file, XbmImagePlugin applies a backtracking expression to the attacker-controlled header before image dimensions are accepted, stalling a worker for minutes and denying service. This issue is fixed in version 13.0.0.

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-2026:5194-1 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-2026-96638: BMP RLE decoder memory-amplification DoS via unbounded delta escape/absolute mode     (bsc#1286800).
    - 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-2026-96778: heap buffer overflow writing JPEG comment after ICC profile fills buffer (bsc#1286793).
    - 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-2026-112395: Pillow tiled-TIFF decoder reads past tile buffer in `copy4` (bsc#1286312).
    - 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-2026-112404: Denial of Service via out-of-bounds read in TIFF decoding (bsc#1286388).
    - 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-2026-112898: `Image.quantize()` with empty palette can leak uninitialized stack memory     (bsc#1286399).
    - 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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3411 advisory.

    Pillow is a Python imaging library. From 7.2.0 until 13.0.0, Pillow can enter an infinite loop while     determining the frame count of a MIC image. MicImageFile inherits TIFF frame traversal, but     MicImageFile.tell reports the OLE stream index and its seek() resets TIFF frame state, so an embedded TIFF     with at least three IFDs never advances. When an application with olefile installed reads n_frames or     saves all frames from a crafted MIC file, the non-advancing traversal can hold a worker at full CPU     indefinitely. This issue is fixed in version 13.0.0. (CVE-2026-112390)

    Pillow is a Python imaging library. Prior to 13.0.0, Pillow's rank-based filters can dereference invalid     image storage for a zero-size image. ImagingExpand() allocates a non-empty output and then faults while     replicating edges by reading the first pixel from empty input storage; ImagingRankFilter is never reached.
    An attacker can supply or cause creation of a zero-size image to an application that applies a rank,     median, minimum, or maximum filter. This causes a native process crash. This issue is fixed in version     13.0.0. (CVE-2026-112392)

    Pillow is a Python imaging library. From 2.0.0 until 13.0.0, Pillow has a heap buffer overflow and stale-     heap disclosure in _tiffWriteProc when saving compressed TIFF data through libtiff to a target without a     usable fileno(), such as BytesIO. The callback sizes its allocation from the prior buffer size instead of     the current write position, allowing an attacker-controlled out-of-line TIFF tag or retained ICC profile     to be copied beyond the allocation after libtiff seeks forward. This overflow can crash the process and     may allow code execution. Independently, unwritten alignment gaps in compressed TIFF output larger than 64     KiB can disclose stale heap bytes without a crafted tag. File paths and targets with real file descriptors     are unaffected. This issue is fixed in version 13.0.0. (CVE-2026-112393)

    Pillow is a Python imaging library. Prior to 13.0.0, Pillow's FlashPix JPEG-tile decoder can write decoded     scanlines beyond the allocated tile buffer. FlashPix (FPX) JPEG decoding selects raw mode LA with two     bytes per pixel, while an unrecognized JPEG mode can be decoded as JCS_UNKNOWN with four components,     causing ImagingJpegDecode to write four-component scanlines into the two-byte tile buffer. An attacker can     supply a crafted OLE2 FlashPix file to an application with the optional olefile dependency installed that     opens or thumbnails untrusted input. This can corrupt heap memory and may allow arbitrary code execution.
    This issue is fixed in version 13.0.0. (CVE-2026-112398)

    Pillow is a Python imaging library. From 8.1.0 until 13.0.0, Pillow can allocate an APNG disposal     background at the full canvas size before applying the decompression-bomb check. A crafted APNG with a     small first frame, a very large declared canvas, and background disposal or first-frame OP_PREVIOUS     reaches PngImageFile._seek while Image.open() positions frame zero. The full-canvas allocation occurs     inside Image.open() without requiring pixel loading or frame iteration. This can exhaust memory and deny     service. This issue is fixed in version 13.0.0. (CVE-2026-112399)

    Pillow is a Python imaging library. From 5.1.0 until 13.0.0, Pillow takes quadratic time to reserve PDF     object identifiers when saving many frames with save_all enabled. PdfParser.next_object_id() repeatedly     rebuilds and scans all previously reserved identifiers for every object. An attacker can supply a multi-     frame image, including a small APNG with a large declared frame count, to an application that converts it     to a multipage PDF. This can consume excessive CPU and deny service. This issue is fixed in version     13.0.0. (CVE-2026-112894)

    Pillow is a Python imaging library. Prior to 13.0.0, Pillow's TIFF encoder can read beyond a ColorMap     buffer when retained TIFF metadata has a plane size inconsistent with BitsPerSample. A small TIFF can be     opened normally and then retain a crafted ColorMap that is reused when the image is saved. An application     that re-encodes the attacker's TIFF with libtiff can trigger the out-of-bounds read. This can disclose     heap memory in the output or crash the process. This issue is fixed in version 13.0.0. (CVE-2026-112896)

    Pillow is a Python imaging library. From 5.3.0 until 13.0.0, Pillow can return uninitialized memory as     pixels when libtiff performs a short decode of JPEG-compressed or Group 4 fax TIFF data. The _decodeStrip     and _decodeTile buffers can be larger than the bytes written by libtiff, but Pillow converts the expected     rows without clearing the unwritten tail. The tile path is affected from 5.3.0 and the strip path from     6.0.0. An attacker can supply a crafted TIFF to an application that loads and returns or re-encodes its     pixels. This can disclose stale heap contents without memory corruption or a process crash. This issue is     fixed in version 13.0.0. (CVE-2026-112897)

    Pillow is a Python imaging library. From 2.6.0 until 13.0.0, Pillow is vulnerable to argument injection     when invoking Ghostscript for EPS input. EpsImagePlugin.Ghostscript passes a caller-controlled input     filename after -f without converting it to a safe absolute path, so a name beginning with a hyphen can be     interpreted as a Ghostscript option. An attacker who controls the filename can inject Ghostscript     arguments. Arbitrary command execution specifically requires a leading @ argument-file filename and     control of the referenced text file containing additional Ghostscript arguments; the reported chain     reproduces with the default -dSAFER invocation. This issue is fixed in version 13.0.0. (CVE-2026-112900)

    Pillow is a Python imaging library. Prior to 13.0.0, Pillow's XBM header parser is vulnerable to regular-     expression denial of service. In XbmImageFile._open, when an application calls Image.open() on a small     crafted XBM file, XbmImagePlugin applies a backtracking expression to the attacker-controlled header     before image dimensions are accepted, stalling a worker for minutes and denying service. This issue is     fixed in version 13.0.0. (CVE-2026-112901)

    Pillow is a Python imaging library. From 9.4.0 until 13.0.0, ImagingJpegEncode() in     src/libImaging/JpegEncode.c can call jpeg_write_marker() for a JPEG COM comment when an ICC profile has     exactly filled the 65536-byte encoder buffer. libjpeg writes one byte before checking the exhausted     free_in_buffer counter, which then wraps and permits the attacker-controlled comment and subsequent     compressed image data to overwrite adjacent heap memory. Re-saving an untrusted image as JPEG while     preserving its ICC profile and forwarded comment can crash the process and may enable code execution in     suitable runtime and heap layouts. This issue is fixed in version 13.0.0. (CVE-2026-96778)

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 ALAS2-2026-4075 advisory.

    Pillow is a Python imaging library. Prior to 13.0.0, Pillow's rank-based filters can dereference invalid     image storage for a zero-size image. ImagingExpand() allocates a non-empty output and then faults while     replicating edges by reading the first pixel from empty input storage; ImagingRankFilter is never reached.
    An attacker can supply or cause creation of a zero-size image to an application that applies a rank,     median, minimum, or maximum filter. This causes a native process crash. This issue is fixed in version     13.0.0. (CVE-2026-112392)

    Pillow is a Python imaging library. Prior to 13.0.0, Pillow's FlashPix JPEG-tile decoder can write decoded     scanlines beyond the allocated tile buffer. FlashPix (FPX) JPEG decoding selects raw mode LA with two     bytes per pixel, while an unrecognized JPEG mode can be decoded as JCS_UNKNOWN with four components,     causing ImagingJpegDecode to write four-component scanlines into the two-byte tile buffer. An attacker can     supply a crafted OLE2 FlashPix file to an application with the optional olefile dependency installed that     opens or thumbnails untrusted input. This can corrupt heap memory and may allow arbitrary code execution.
    This issue is fixed in version 13.0.0. (CVE-2026-112398)

    Pillow is a Python imaging library. Prior to 13.0.0, Pillow's XBM header parser is vulnerable to regular-     expression denial of service. In XbmImageFile._open, when an application calls Image.open() on a small     crafted XBM file, XbmImagePlugin applies a backtracking expression to the attacker-controlled header     before image dimensions are accepted, stalling a worker for minutes and denying service. This issue is     fixed in version 13.0.0. (CVE-2026-112901)

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 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, Pillow's XBM header parser is vulnerable to regular-
    expression denial of service. In XbmImageFile._open, when an application calls Image.open() on a small
    crafted XBM file, XbmImagePlugin applies a backtracking expression to the attacker-controlled header
    before image dimensions are accepted, stalling a worker for minutes and denying service. This issue is
    fixed in version 13.0.0. (CVE-2026-112901)

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, Pillow's XBM header parser is vulnerable to regular-     expression denial of service. In XbmImageFile._open, when an application calls Image.open() on a small     crafted XBM file, XbmImagePlugin applies a backtracking expression to the attacker-controlled header     before image dimensions are accepted, stalling a worker for minutes and denying service. This issue is     fixed in version 13.0.0. (CVE-2026-112901)

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

ID	Name	Product	Family	Type	Severity
379493	SUSE SLED15 / SLES15 Security Update : python-Pillow (SUSE-SU-2026:5194-1)	Nessus	SuSE Local Security Checks	Local	critical
377950	Amazon Linux 2023 : python3-pillow, python3-pillow-devel, python3-pillow-tk (ALAS2023-2026-3411)	Nessus	Amazon Linux Local Security Checks	Local	critical
377918	Amazon Linux 2 : python-pillow (ALAS-2026-4075)	Nessus	Amazon Linux Local Security Checks	Local	critical
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
476879	Chainguard: openstack-horizon-2025.2: security update to 25.5.2_git20260914-r12	Tenable Cloud Security	Chainguard Local Security Checks	Local	medium
476879	Chainguard: openstack-horizon-2025.2: security update to 25.5.2_git20260914-r12	Tenable Self-Hosted Container Security	Chainguard Local Security Checks	Local	medium
476580	SCA: security update for Pillow (GHSA-xgh8-jp6q-p5x8)	Tenable Cloud Security	SCA Checks	Local	medium
476580	SCA: security update for Pillow (GHSA-xgh8-jp6q-p5x8)	Tenable Self-Hosted Container Security	SCA Checks	Local	medium
367526	Linux Distros Unpatched Vulnerability : CVE-2026-112901	Nessus	Misc.	Local	medium

Detections

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CVE-2026-112901

medium

Tenable Plugins

critical

critical

critical

critical

critical

medium

medium

medium

medium

medium