CVE-2026-112902
Pillow: Memory disclosure and segfault in libtiff encoder via crafted TIFF tags
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
Pillow is a Python imaging library. In versions through 12.3.0, the libtiff TIFF encoder can pass arguments to TIFFSetField() that do not match libtiff’s definition of the corresponding tag. When an application saves attacker-controlled image metadata through this encoder, crafted tag values can cause invalid memory reads, copying process memory into the encoded output or crashing the process. Applications that return the encoded output to an attacker can disclose that memory. The issue is reachable when re-saving compressed TIFF images and through certain conversions that preserve EXIF metadata into compressed TIFF output. This vulnerability is fixed in version 13.0.0.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 4.0 | High8.3 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N |
| NVDNVD · Awaiting Analysis | 4.0 | High8.3 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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 |
- EPSS (exploitation in 30 days)
- 0.50% · top 57% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.3.
Weakness
Affected products
- affected < 13.0.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIPillowGHSA-xvh5-g6gv-559v (opens in a new tab)
References (4)
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-xvh5-g6gv-559v (opens in a new tab)x_refsource_CONFIRM
- https://github.com/python-pillow/Pillow/pull/10227 (opens in a new tab)x_refsource_MISC
- https://github.com/python-pillow/Pillow/commit/570df030c0d30c2bf5336b2ab59f3902d8ab0b6d (opens in a new tab)x_refsource_MISC
- https://github.com/python-pillow/Pillow/releases/tag/13.0.0 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-xvh5-g6gv-559v (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-112902)Record last updated .