Pillow is a Python imaging library. Prior to 12.3.0, WindowsViewer.get_command() constructed a cmd.exe shell command by directly embedding a file path into an f-string without escaping and passed the result to subprocess.Popen(..., shell=True), allowing shell metacharacters in the file path to inject arbitrary cmd.exe commands. This issue is fixed in version 12.3.0.

According to the versions of the python-pillow packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    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, PIL/GdImageFile.py GdImageFile._open() read image     dimensions from the GD 2.x header and stored them in self._size without calling     Image._decompression_bomb_check(), allowing a crafted .gd file to trigger excessive C-heap allocation when     loaded. This issue is fixed in version 12.3.0.(CVE-2026-55380)

    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. Prior to 12.3.0, PIL/BdfFontFile.py bdf_char() read the BBX width and     height field from a BDF font file and passed attacker-controlled dimensions to Image.new() without calling     Image._decompression_bomb_check(), bypassing Pillow's documented decompression bomb protection and     allowing excessive memory allocation. This issue is fixed in version 12.3.0.(CVE-2026-55379)

    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)

    Pillow is a Python imaging library. Prior to 12.3.0, PIL/FontFile.py FontFile.compile() assembled per-     glyph images into a combined bitmap with Image.new('1', (xsize, ysize)) without calling     Image._decompression_bomb_check(), allowing a font to trigger excessive allocation during conversion or     saving. This issue is fixed in version 12.3.0.(CVE-2026-54060)

    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, WindowsViewer.get_command() constructed a cmd.exe     shell command by directly embedding a file path into an f-string without escaping and passed the result to     subprocess.Popen(..., shell=True), allowing shell metacharacters in the file path to inject arbitrary     cmd.exe commands. This issue is fixed in version 12.3.0.(CVE-2026-55798)

    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 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, PIL/PcfFontFile.py _load_bitmaps() read glyph     dimensions from the PCF METRICS section and passed them directly to Image.frombytes() without calling     Image._decompression_bomb_check(), allowing crafted PCF font data to cause excessive memory allocation.
    This issue is fixed in version 12.3.0.(CVE-2026-54059)

Tenable has extracted the preceding description block directly from the EulerOS python-pillow 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 12.3.0, WindowsViewer.get_command() constructed a cmd.exe
    shell command by directly embedding a file path into an f-string without escaping and passed the result to
    subprocess.Popen(..., shell=True), allowing shell metacharacters in the file path to inject arbitrary
    cmd.exe commands. This issue is fixed in version 12.3.0. (CVE-2026-55798)

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 Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-46c4892063 advisory.

    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.

ID	Name	Product	Family	Type	Severity
364023	EulerOS 2.0 SP15 : python-pillow (EulerOS-SA-2026-3943)	Nessus	Huawei Local Security Checks	Local	high
363983	EulerOS 2.0 SP15 : python-pillow (EulerOS-SA-2026-4009)	Nessus	Huawei Local Security Checks	Local	high
460919	Echo: pillow: security update to 12.3.0	Tenable Cloud Security	Echo Local Security Checks	Local	medium
460919	Echo: pillow: security update to 12.3.0	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	medium
328435	Fedora 43 : python-pillow (2026-fc2ded926e)	Nessus	Fedora Local Security Checks	Local	high
326367	Fedora 44 : python-pillow (2026-46c4892063)	Nessus	Fedora Local Security Checks	Local	medium

Detections

Analytics

CVE-2026-55798

medium

Tenable Plugins

high

high

medium

medium

high

medium