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CVE

CVE-2026-25990

Pillow affected by out-of-bounds write when loading PSD images
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CVE

CVE-2026-25990

Pillow affected by out-of-bounds write when loading PSD images

Impact

An out-of-bounds write may be triggered when loading a specially crafted PSD image. Pillow >= 10.3.0 users are affected.

Patches

Pillow 12.1.1 will be released shortly with a fix for this.

Workarounds

Image.open() has a formats parameter that can be used to prevent PSD images from being opened.

References

Pillow 12.1.1 will add release notes at https://pillow.readthedocs.io/en/stable/releasenotes/index.html

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.9
-
4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/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
C
H
U
0
-
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Related Resources

No items found.

References

https://github.com/python-pillow/Pillow/security/advisories/GHSA-cfh3-3jmp-rvhc, https://nvd.nist.gov/vuln/detail/CVE-2026-25990, https://github.com/python-pillow/Pillow/pull/9427, https://github.com/python-pillow/Pillow/commit/54ba4db542ad3c7b918812a4e2d69c27735a3199, https://github.com/python-pillow/Pillow/commit/9000313cc5d4a31bdcdd6d7f0781101abab553aa, https://github.com/python-pillow/Pillow, https://pillow.readthedocs.io/en/stable/releasenotes/12.1.1.html

Severity

9.8

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
9.8
EPSS Probability
0.00017%
EPSS Percentile
0.03749%
Introduced Version
10.3.0
Fix Available
12.1.1

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