Bug 2555875 (CVE-2026-112894) - CVE-2026-112894 pillow: pillow: Denial of Service via crafted multi-frame image conversion
Summary: CVE-2026-112894 pillow: pillow: Denial of Service via crafted multi-frame ima...
Keywords:
Status: NEW
Alias: CVE-2026-112894
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-19 22:01 UTC by OSIDB Bzimport
Modified: 2026-11-03 08:31 UTC (History)
58 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:92639 0 None None None 2026-10-29 22:38:18 UTC

Description OSIDB Bzimport 2026-10-19 22:01:31 UTC 
Pillow is a Python imaging library. From 5.1.0 until 13.0.0, Pillow takes quadratic time to reserve PDF object identifiers when saving many frames with save_all enabled. PdfParser.next_object_id() repeatedly rebuilds and scans all previously reserved identifiers for every object. An attacker can supply a multi-frame image, including a small APNG with a large declared frame count, to an application that converts it to a multipage PDF. This can consume excessive CPU and deny service. This issue is fixed in version 13.0.0.
Comment 2 Jon Orris 2026-10-29 22:38:15 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:92639 https://access.redhat.com/errata/RHSA-2026:92639
Note You need to log in before you can comment on or make changes to this bug.