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Python CVE-2026-25990

HIGH
Out-of-bounds Write (CWE-787)
2026-02-11 security-advisories@github.com GHSA-cfh3-3jmp-rvhc
Python Buffer Overflow Memory Corruption Pillow
8.6
CVSS 4.0 · Vendor: github
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Severity by source

Vendor (github) PRIMARY
8.6 HIGH
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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
SUSE
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Red Hat
7.3 HIGH
qualitative

Primary rating from Vendor (github).

CVSS VectorVendor: github

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

5
Re-analysis Queued
Apr 30, 2026 - 21:22 vuln.today
cvss_changed
CVSS changed
Apr 30, 2026 - 21:22 NVD
7.5 (HIGH) 8.6 (HIGH)
Analysis Generated
Mar 12, 2026 - 22:02 vuln.today
Patch released
Feb 13, 2026 - 21:32 nvd
Patch available
CVE Published
Feb 11, 2026 - 21:16 nvd
HIGH 7.5

Blast Radius

ecosystem impact
† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth
  • 333 pypi packages depend on pillow (278 direct, 59 indirect)

Ecosystem-wide dependent count for version 10.3.0.

DescriptionCVE.org

Pillow is a Python imaging library. From 10.3.0 to before 12.1.1, n out-of-bounds write may be triggered when loading a specially crafted PSD image. This vulnerability is fixed in 12.1.1.

AnalysisAI

Out-of-bounds write in Pillow versions 10.3.0 through 12.1.0 allows remote denial of service when processing maliciously crafted PSD image files. An attacker can trigger a crash by supplying a specially crafted image without authentication or user interaction. A patch is available in version 12.1.1.

Technical ContextAI

Classified as CWE-787 (Out-of-bounds Write). Affects Pillow. Pillow is a Python imaging library. From 10.3.0 to before 12.1.1, n out-of-bounds write may be triggered when loading a specially crafted PSD image. This vulnerability is fixed in 12.1.1.

RemediationAI

A vendor patch is available — apply it immediately. Fixed in version 12.1.1.. Enable ASLR, DEP/NX, and stack canaries where possible. Restrict network access to the affected service where possible.

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Vendor StatusVendor

SUSE

Severity: High
Product Status
SUSE Linux Enterprise Server 16.0 SUSE Linux Enterprise Server for SAP applications 16.0 Fixed
openSUSE Leap 16.0 Fixed
openSUSE Tumbleweed Fixed
SUSE Linux Enterprise Server 16.0 Affected
SUSE Linux Enterprise Desktop 15 SP7 Fixed

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CVE-2026-25990 vulnerability details – vuln.today
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