Bug 2446336 (CVE-2026-31826) - CVE-2026-31826 pypdf: pypdf: Denial of Service due to excessive memory consumption via crafted PDF
Summary: CVE-2026-31826 pypdf: pypdf: Denial of Service due to excessive memory consum...
Keywords:
Status: NEW
Alias: CVE-2026-31826
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-10 23:02 UTC by OSIDB Bzimport
Modified: 2026-03-10 23:32 UTC (History)
17 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-03-10 23:02:58 UTC 
pypdf is a free and open-source pure-python PDF library. Prior to 6.8.0, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing a content stream with a rather large /Length value, regardless of the actual data length inside the stream. This vulnerability is fixed in 6.8.0.
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