BIT-pillow-2026-112401

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/pillow/BIT-pillow-2026-112401.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-pillow-2026-112401
Aliases
Published
2026-10-26T05:55:44Z
Modified
2026-10-26T08:56:13Z
Summary
Pillow: Quadratic GIF comment concatenation allows DoS in Image.open()
Details

Pillow is a Python imaging library. From 5.4.0 until 13.0.0, Pillow performs quadratic copying while parsing GIF comments. GifImageFile._seek() repeatedly appends immutable bytes for comment sub-blocks and multiple comment extensions, and frame zero is parsed during Image.open(). An attacker can submit a small-dimension GIF containing many comment extensions to any application that opens the file. This can consume excessive CPU and deny service before the application can inspect the image. This issue is fixed in version 13.0.0.

Database specific
{
    "cpes":  [
        "cpe:2.3:a:python:pillow:*:*:*:*:*:python:*:*"
    ],
    "severity":  "Medium"
}
References

Affected packages

Bitnami / pillow

Package

Name
pillow
Purl
pkg:bitnami/pillow

Severity

  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
5.4.0
Fixed
13.0.0

Database specific

source
"https://github.com/bitnami/vulndb/tree/main/data/pillow/BIT-pillow-2026-112401.json"