Home/CVE/Pillow is a Python imaging library. From version 10.3.0 to before version 12.2.0, processing a malicious PSD file could
CVE

CVE-2026-42311

Pillow is a Python imaging library. From version 10.3.0 to before version 12.2.0, processing a malicious PSD file could

Pillow is a Python imaging library. From version 10.3.0 to before version 12.2.0, processing a malicious PSD file could lead to memory corruption, potentially resulting in a crash or arbitrary code execution. This issue has been patched in version 12.2.0.

HIGH · CVSS 7.8 EPSS 0.0002
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-190Integer Overflow or Wraparound
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

1
python pillow>= 10.3.0 and < 12.2.0
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
PyPI pillow HIGH fixed in 12.2.0
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 May 2026 · 06:16 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

3
rhsaRHSA-2026:16009Moderate
rhsaRHSA-2026:16030Moderate
rhsaRHSA-2026:16008Moderate
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/python-pillow/Pillow/commit/58f9a1d166dcb0c274807d4423522d205b0c35eaPatch
https://github.com/python-pillow/Pillow/pull/9520Issue TrackingPatch
https://github.com/python-pillow/Pillow/releases/tag/12.2.0ProductRelease Notes
https://github.com/python-pillow/Pillow/security/advisories/GHSA-pwv6-vv43-88grPatchVendor Advisory
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