CVE-2026-115585

pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an incomplete remediation for repeated malformed cross-reference entries in GHSA-55h5-xmcq-c37v could still trigger a complete PDF stream reload during each recovery attempt even when a recovery cache was present, causing...

CVE-2026-115585

A flaw was found in pypdf. A remote attacker could cause a Denial of Service DoS by convincing a user or automated system to process a crafted PDF file containing repeated malformed cross-reference entries. Due to an issue in the stream recovery caching mechanism, the library repeatedly reloads t...

CVE-2026-115585 pypdf: Possible long runtimes for repeated malformed cross-reference entries (Follow-up)

pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an incomplete remediation for repeated malformed cross-reference entries in GHSA-55h5-xmcq-c37v could still trigger a complete PDF stream reload during each recovery attempt even when a recovery cache was present, causing...

CVE-2026-115585

The pypdf pure-python PDF library is vulnerable to long runtimes when processing crafted PDF files containing repeated malformed cross-reference entries . In versions prior to 6.21.2 , an incomplete remediation allowed these entries to trigger a complete PDF stream reload during each recovery att...

pypdf: Possible long runtimes for repeated malformed cross-reference entries

ImpactAn attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with repeated malformed cross-reference streams. PatchesThis has been fixed in pypdf==6.14.0. WorkaroundsIf you cannot upgrade yet, consider applying the changes from ...

pypdf has a possible infinite loop when loading circular /Prev entries in cross-reference streams

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading the file. Patches This has been fixed in pypdf==6.7.2. Workarounds If users cannot upgrade yet, consider applying the changes from PR 3655...

CVE-2026-27628 pypdf has a possible infinite loop when loading circular /Prev entries in cross-reference streams

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.2, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading the file. This has been fixed in pypdf 6.7.2. As a workaround, one may apply the patch manually...

SUSE CVE-2018-20481

XRef::getEntry in XRef.cc in Poppler 0.72.0 mishandles unallocated XRef entries, which allows remote attackers to cause a denial of service NULL pointer dereference via a crafted PDF document, when XRefEntry::setFlag in XRef.h is called from Parser::makeStream in Parser.cc...

DEBIAN-CVE-2018-20481

XRef::getEntry in XRef.cc in Poppler 0.72.0 mishandles unallocated XRef entries, which allows remote attackers to cause a denial of service NULL pointer dereference via a crafted PDF document, when XRefEntry::setFlag in XRef.h is called from Parser::makeStream in Parser.cc...