| Name | CVE-2026-59200 |
| Description | Pillow is a Python imaging library. From 5.1.0 until 12.3.0, PdfParser.PdfStream.decode() in PIL/PdfParser.py calls zlib.decompress() with bufsize set to the PDF stream Length field without bounding the decompressed output size, allowing a crafted FlateDecode PDF stream to exhaust memory from a small file. This issue is fixed in version 12.3.0. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1142274 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| pillow (PTS) | bullseye | 8.1.2+dfsg-0.3+deb11u2 | vulnerable |
| bullseye (security) | 8.1.2+dfsg-0.3+deb11u3 | vulnerable |
| bookworm, bookworm (security) | 9.4.0-1.1+deb12u1 | vulnerable |
| trixie | 11.1.0-5+deb13u4 | vulnerable |
| trixie (security) | 11.1.0-5+deb13u3 | vulnerable |
| forky, sid | 12.3.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| pillow | source | (unstable) | 12.3.0-1 | | | 1142274 |
Notes
[bookworm] - pillow <postponed> (Minor issue, DoS)
[bullseye] - pillow <postponed> (Minor issue, DoS)
https://github.com/python-pillow/Pillow/security/advisories/GHSA-jjj6-mw9f-p565
https://github.com/python-pillow/Pillow/pull/9718
Fixed by: https://github.com/python-pillow/Pillow/commit/f7a31ea75e460e108c37126da1f47812f21f6b09 (12.3.0)