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.

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 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 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. 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)

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
330318	SUSE SLED15 / SLES15 Security Update : python-Pillow (SUSE-SU-2026:3268-1)	Nessus	SuSE Local Security Checks	high
327748	SUSE SLES15 Security Update : python-Pillow (SUSE-SU-2026:3084-1)	Nessus	SuSE Local Security Checks	high
327212	Linux Distros Unpatched Vulnerability : CVE-2026-59200	Nessus	Misc.	high

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