Bug 2497665
| Summary: | CVE-2026-54060 python-pillow: Pillow: Denial of Service via excessive memory allocation when processing font files [fedora-all] | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | jkelly <jkelly> |
| Component: | python-pillow | Assignee: | Sandro Mani <manisandro> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | rawhide | CC: | epel-packagers-sig, infra-sig, manisandro, python-packagers-sig |
| Target Milestone: | --- | Keywords: | Security, SecurityTracking |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | {"flaws": ["288d6c1e-c2d6-4f59-a80b-0cf67be8a728"]} | ||
| Fixed In Version: | python-pillow-12.3.0-1.fc44 | Doc Type: | --- |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2026-07-11 01:11:28 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 2497466 | ||
FEDORA-2026-d86f55c21a (python-pillow-11.3.0-9.fc43) has been submitted as an update to Fedora 43. https://bodhi.fedoraproject.org/updates/FEDORA-2026-d86f55c21a FEDORA-2026-46c4892063 (python-pillow-12.3.0-1.fc44) has been submitted as an update to Fedora 44. https://bodhi.fedoraproject.org/updates/FEDORA-2026-46c4892063 FEDORA-2026-d86f55c21a has been pushed to the Fedora 43 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-d86f55c21a` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-d86f55c21a See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. FEDORA-2026-46c4892063 has been pushed to the Fedora 44 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-46c4892063` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-46c4892063 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. FEDORA-2026-46c4892063 (python-pillow-12.3.0-1.fc44) has been pushed to the Fedora 44 stable repository. If problem still persists, please make note of it in this bug report. FEDORA-2026-fc2ded926e has been pushed to the Fedora 43 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-fc2ded926e` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-fc2ded926e See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. |
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process. Pillow is a Python imaging library. Prior to 12.3.0, PIL/FontFile.py FontFile.compile() assembled per-glyph images into a combined bitmap with Image.new("1", (xsize, ysize)) without calling Image._decompression_bomb_check(), allowing a font to trigger excessive allocation during conversion or saving. This issue is fixed in version 12.3.0.