GHSA-462x-pgg6-55fp: pillow (CVE-2026-112395)

Package	Ecosystem	Affected	Fixed in
pillow	PyPI	>=8.2.0, <13.0.0	13.0.0

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Pillow versions from 8.2.0 before 13.0.0 have a flaw in the libImaging tiled-TIFF decoder, where a row-copy routine can read past the end of a per-tile buffer when libtiff reports a smaller tile size than expected. An attacker who can get a Pillow-using application to decode a crafted TIFF file could crash the process and may copy adjacent heap memory into the decoded image. The fix is in Pillow 13.0.0, so upgrade to that version or later.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
6.5	Medium	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0051, the 44th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:07 UTC First seen by agentprime
31 Oct 2026, 14:07 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.