Bug 2498170 (CVE-2026-59937) - CVE-2026-59937 pypdf: pypdf: Denial of Service via crafted PDF with malformed cross-reference streams
Summary: CVE-2026-59937 pypdf: pypdf: Denial of Service via crafted PDF with malformed...
Keywords:
Status: NEW
Alias: CVE-2026-59937
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-08 18:01 UTC by OSIDB Bzimport
Modified: 2026-07-10 13:53 UTC (History)
21 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-07-08 18:01:24 UTC 
pypdf is a free and open-source pure-python PDF library. Prior to 6.14.0, an attacker can craft a PDF with repeated malformed cross-reference streams that cause pypdf to spend long runtimes recovering broken cross-reference table entries. This issue is fixed in version 6.14.0.
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