Bug 2491517 (CVE-2026-49460) - CVE-2026-49460 pypdf: pypdf: Denial of Service via crafted PDF with FlateDecode filter
Summary: CVE-2026-49460 pypdf: pypdf: Denial of Service via crafted PDF with FlateDeco...
Keywords:
Status: NEW
Alias: CVE-2026-49460
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-22 21:02 UTC by OSIDB Bzimport
Modified: 2026-06-24 23:35 UTC (History)
23 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-06-22 21:02:02 UTC 
pypdf is a free and open-source pure-python PDF library. Prior to 6.12.2, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires accessing a stream which uses the /FlateDecode filter with a PNG predictor. This vulnerability is fixed in 6.12.2.
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