Vulnerability Database

313,359

Total vulnerabilities in the database

CVE-2021-25289

An issue was discovered in Pillow before 8.1.1. TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr files because of certain interpretation conflicts with LibTIFF in RGBA mode. NOTE: this issue exists because of an incomplete fix for CVE-2020-35654.

Published: Mar 19, 2021
Updated: Nov 16, 2025
CVE: CVE-2021-25289
GHSA: GHSA-57h3-9rgr-c24m
Severity: Critical
Exploit:

CVSS v3:

Severity: Critical
Score: 9.8
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2:

Severity: High
Score: 7.5
AV:N/AC:L/Au:N/C:P/I:P/A:P

CWEs:

CWE-787

Affected Software
References

Software	From	Fixed in
python / pillow	-	8.1.1
Pillow	8.1.0	8.1.0.x
Pillow	8.1.0	8.1.1

https://github.com/python-pillow/Pillow/commit/3fee28eb9479bf7d59e0fa08068f9cc4a6e2f04c
https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html
https://security.gentoo.org/glsa/202107-33

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