CVE catalog
CVE-2026-59205
Pillow is a Python imaging library. Prior to 12.3.0, Pillow's ImageCms.ImageCmsTransform.apply(im, imOut) API can trigger controlled native heap corruption when the caller supplies an output image who
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.39% · Oct 25, 2026
Pillow is a Python imaging library. Prior to 12.3.0, Pillow's ImageCms.ImageCmsTransform.apply(im, imOut) API can trigger controlled native heap corruption when the caller supplies an output image whose mode does not match the transform's declared output mode. This issue is fixed in version 12.3.0.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | pillow | sid | 13.0.0-1 | fixed |
| Debian | pillow | forky | 12.3.0-1 | fixed |
| Debian | pillow | trixie | 11.1.0-5+deb13u4 | vulnerable |
| Debian | pillow | trixie-security | 11.1.0-5+deb13u3 | vulnerable |
| Debian | pillow | bookworm | 9.4.0-1.1+deb12u1 | vulnerable |
| Debian | pillow | bookworm-security | 9.4.0-1.1+deb12u1 | vulnerable |
| Cpe | pillow | Not reported | Not reported | vulnerable |
| Pip | pillow | Not reported | 12.3.0 | fixed |
| PyPI | pillow | Not reported | 12.3.0 | fixed |
| Ubuntu | pillow | pro | 6.1.0-1 | vulnerable |
| Ubuntu | pillow | pro | 6.1.0-1build1 | vulnerable |
| Ubuntu | pillow | pro | 6.2.1-2 | vulnerable |
| Ubuntu | pillow | pro | 7.0.0-4 | vulnerable |
| Ubuntu | pillow | pro | 7.0.0-4build1 | vulnerable |
| Ubuntu | pillow | pro | 7.0.0-4ubuntu0.1 | vulnerable |
| Ubuntu | pillow | pro | 7.0.0-4ubuntu0.2 | vulnerable |
| Ubuntu | pillow | pro | 7.0.0-4ubuntu0.3 | vulnerable |
| Ubuntu | pillow | pro | 7.0.0-4ubuntu0.4 | vulnerable |
| Ubuntu | pillow | pro | 7.0.0-4ubuntu0.5 | vulnerable |
| Ubuntu | pillow | pro | 7.0.0-4ubuntu0.6 | vulnerable |
| Ubuntu | pillow | pro | 7.0.0-4ubuntu0.7 | vulnerable |
| Ubuntu | pillow | pro | 7.0.0-4ubuntu0.8 | vulnerable |
| Ubuntu | pillow | pro | 7.0.0-4ubuntu0.9 | vulnerable |
| Ubuntu | pillow | pro | 7.0.0-4ubuntu0.9+esm1 | vulnerable |
| Ubuntu | pillow-python2 | pro | 6.2.1-3~build1 | vulnerable |
| Ubuntu | pillow-python2 | pro | 6.2.1-3 | vulnerable |
| Ubuntu | pillow-python2 | pro | 6.2.1-3ubuntu0.1~esm1 | vulnerable |
| Ubuntu | pillow-python2 | pro | 6.2.1-3ubuntu0.1~esm2 | vulnerable |
| Ubuntu | pillow | 22.04 | 8.1.2+dfsg-0.3 | vulnerable |
| Ubuntu | pillow | 22.04 | 9.0.0-1 | vulnerable |
| Ubuntu | pillow | 22.04 | 9.0.1-1 | vulnerable |
| Ubuntu | pillow | 22.04 | 9.0.1-1build1 | vulnerable |
| Ubuntu | pillow | 22.04 | 9.0.1-1ubuntu0.1 | vulnerable |
| Ubuntu | pillow | 22.04 | 9.0.1-1ubuntu0.2 | vulnerable |
| Ubuntu | pillow | 22.04 | 9.0.1-1ubuntu0.3 | vulnerable |
| Ubuntu | pillow | 22.04 | 9.0.1-1ubuntu0.4 | vulnerable |
| Ubuntu | pillow | 22.04 | 9.0.1-1ubuntu0.5 | vulnerable |
| Ubuntu | pillow | 24.04 | 10.0.0-1 | vulnerable |
| Ubuntu | pillow | 24.04 | 10.1.0-1 | vulnerable |
| Ubuntu | pillow | 24.04 | 10.2.0-1 | vulnerable |
| Ubuntu | pillow | 24.04 | 10.2.0-1build1 | vulnerable |
| Ubuntu | pillow | 24.04 | 10.2.0-1ubuntu1 | vulnerable |
| Ubuntu | pillow | 24.04 | 10.2.0-1ubuntu1.2 | vulnerable |
| Ubuntu | pillow | 24.04 | 10.2.0-1ubuntu1.3 | vulnerable |
| Ubuntu | pillow | 26.04 | 11.3.0-1ubuntu1 | vulnerable |
| Ubuntu | pillow | 26.04 | 11.3.0-1ubuntu2 | vulnerable |
| Ubuntu | pillow | 26.04 | 12.0.0-1ubuntu1 | vulnerable |
| Ubuntu | pillow | 26.04 | 12.1.1-1ubuntu1 | vulnerable |
| Ubuntu | pillow | 26.04 | 12.1.1-2ubuntu1 | vulnerable |
| Ubuntu | pillow | 26.04 | 12.1.1-2ubuntu1.1 | vulnerable |
| Ubuntu | pillow | 26.04 | 12.1.1-2ubuntu1.2 | vulnerable |
| Ubuntu | pillow | 26.04 | 12.1.1-2ubuntu1.3 | vulnerable |
| Cpe | pillow | Not reported | 12.3.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | pillow | source | sid | 12.3.0-1 | not yet assigned | Not reported | [1142274] |
| Debian | pillow | source | forky | 12.3.0-1 | not yet assigned | Not reported | [1142274] |
| Debian | pillow | source | trixie | (unfixed) | not yet assigned | Not reported | [1142274] |
| Debian | pillow | source | bookworm | (unfixed) | not yet assigned | Not reported | [1142274] |
| Pip | pillow | pip | Not reported | 12.3.0 | Not reported | Not reported | Not reported |
| PyPI | pillow | PyPI | Not reported | 12.3.0 | Not reported | GHSA-9HW9-CH79-4VH6 | Not reported |
| Cpe | pillow | cpe | Not reported | 12.3.0 | Not reported | NVD-CVE-2026-59205 | Not reported |
Notes
[bookworm] pillow: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-pil]Affected
Source package: [pillow]
Details (4)
9.4.0-1.1+deb12u1· amd64 · bookwormAffected
nvd · pillow · debian · bookworm; nvd · pillow · debian · 12
9.4.0-1.1+deb12u1· arm64 · bookwormAffected
nvd · pillow · debian · bookworm; nvd · pillow · debian · 12
9.4.0-1.1+deb12u1· amd64 · bookworm-securityAffected
nvd · pillow · debian · bookworm; nvd · pillow · debian · 12
9.4.0-1.1+deb12u1· arm64 · bookworm-securityAffected
nvd · pillow · debian · bookworm; nvd · pillow · debian · 12
- [python3-pil.imagetk]Affected
Source package: [pillow]
Details (4)
9.4.0-1.1+deb12u1· amd64 · bookwormAffected
nvd · pillow · debian · bookworm; nvd · pillow · debian · 12
9.4.0-1.1+deb12u1· arm64 · bookwormAffected
nvd · pillow · debian · bookworm; nvd · pillow · debian · 12
9.4.0-1.1+deb12u1· amd64 · bookworm-securityAffected
nvd · pillow · debian · bookworm; nvd · pillow · debian · 12
9.4.0-1.1+deb12u1· arm64 · bookworm-securityAffected
nvd · pillow · debian · bookworm; nvd · pillow · debian · 12
- [python-pil-doc]Affected
Source package: [pillow]
Details (4)
9.4.0-1.1+deb12u1· all · bookwormAffected
nvd · pillow · debian · bookworm; nvd · pillow · debian · 12
9.4.0-1.1+deb12u1· all · bookwormAffected
nvd · pillow · debian · bookworm; nvd · pillow · debian · 12
9.4.0-1.1+deb12u1· all · bookworm-securityAffected
nvd · pillow · debian · bookworm; nvd · pillow · debian · 12
9.4.0-1.1+deb12u1· all · bookworm-securityAffected
nvd · pillow · debian · bookworm; nvd · pillow · debian · 12
[Debian 13 (Trixie)]
- [python3-pil]Affected
Source package: [pillow]
Details (4)
11.1.0-5+deb13u4· amd64 · trixieAffected
nvd · pillow · debian · 13
11.1.0-5+deb13u4· arm64 · trixieAffected
nvd · pillow · debian · 13
11.1.0-5+deb13u3· amd64 · trixie-securityAffected
nvd · pillow · debian · 13
11.1.0-5+deb13u3· arm64 · trixie-securityAffected
nvd · pillow · debian · 13
- [python3-pil.imagetk]Affected
Source package: [pillow]
Details (4)
11.1.0-5+deb13u4· amd64 · trixieAffected
nvd · pillow · debian · 13
11.1.0-5+deb13u4· arm64 · trixieAffected
nvd · pillow · debian · 13
11.1.0-5+deb13u3· amd64 · trixie-securityAffected
nvd · pillow · debian · 13
11.1.0-5+deb13u3· arm64 · trixie-securityAffected
nvd · pillow · debian · 13
- [python-pil-doc]Affected
Source package: [pillow]
Details (4)
11.1.0-5+deb13u4· all · trixieAffected
nvd · pillow · debian · 13
11.1.0-5+deb13u4· all · trixieAffected
nvd · pillow · debian · 13
11.1.0-5+deb13u3· all · trixie-securityAffected
nvd · pillow · debian · 13
11.1.0-5+deb13u3· all · trixie-securityAffected
nvd · pillow · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2026_23217-1.json]
- [https://github.com/python-pillow/Pillow/commit/a9ffc42bedf4fc0a7ef8d6486e7f9e81e3397721]
- [https://github.com/python-pillow/Pillow/pull/9715]
- [https://github.com/python-pillow/Pillow/releases/tag/12.3.0]
- [https://github.com/python-pillow/Pillow/security/advisories/GHSA-9hw9-ch79-4vh6]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-59205]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-59205]
- [https://osv.dev/vulnerability/GHSA-9hw9-ch79-4vh6]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-59205]
- [https://security-tracker.debian.org/tracker/CVE-2026-59205]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-59205.json]
[Debian Security Tracker] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]