Bug 2491528 (CVE-2026-54530)

Summary: CVE-2026-54530 pypdf: python-pypdf: pypdf: Denial of Service via crafted PDF processing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: anpicker, bbrownin, bdettelb, bparees, doconnor, dschmidt, erezende, hasun, jfula, jkoehler, jlanda, jowilson, kshier, lphiri, nyancey, ometelka, ptisnovs, simaishi, stcannon, syedriko, teagle, xdharmai, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in pypdf, a pure-python PDF library. An attacker can craft a malicious PDF file that, when processed by a system extracting text in layout mode, can lead to an infinite loop. This vulnerability results in a Denial of Service (DoS), making the affected system unresponsive.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-06-22 21:02:16 UTC
pypdf is a free and open-source pure-python PDF library. Prior to 6.13.0, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires extracting the text in layout mode. This vulnerability is fixed in 6.13.0.