PYSEC-2026-3910 pypdf: Possible long runtimes/large memory usage when retrieving outlines

Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires accessing the outlines of a document with either lots of entries or nested outlines with long re-used nesting paths. Patches This has been fixed in pypdf==6.16.1...

pypdf: Possible long runtimes/large memory usage when extracting XForm objects

ImpactAn attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires extracting the text of a page with lots of XForm objects, where some of them might be re-used. PatchesThis has been fixed in pypdf==6.16.1. WorkaroundsIf you cann...

agatta (>=1.0.0, <=1.0.2), agentbuddy (0.1.1.dev33) +102 more potentially affected by CVE-2026-84310 via pypdf (3.17.4)

pypdf PYPI version 3.17.4 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - agatta =1.0.0, =0.0.3, =0.0.1, =1.1.0, =0.0.2, =1.2.0, =0.6.7, =1.2.1, =0.1.3, =0.0.1, =0.8.2 - cadenai 0.1.0 and more Source cves: CVE-2026-84310...

agatta (>=1.0.0, <=1.0.2), agentbuddy (0.1.1.dev33) +102 more potentially affected by CVE-2026-84311 via pypdf (3.17.4)

pypdf PYPI version 3.17.4 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - agatta =1.0.0, =0.0.3, =0.0.1, =1.1.0, =0.0.2, =1.2.0, =0.6.7, =1.2.1, =0.1.3, =0.0.1, =0.8.2 - cadenai 0.1.0 and more Source cves: CVE-2026-84311...

aiagents4pharma (>=1.15.0, <=1.44.0), pypdftotext (>=0.0.6, <=0.0.9) +3 more potentially affected by CVE-2026-84311 via pypdf (5.2.0)

pypdf PYPI version 5.2.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - aiagents4pharma =1.15.0, =0.0.6, =1.0.1, =1.0.1, =1.0.5 Source cves: CVE-2026-84311 Source advisory: OSV:PYSEC-2026-3911...

aiagents4pharma (>=1.15.0, <=1.44.0), pypdftotext (>=0.0.6, <=0.0.9) +3 more potentially affected by CVE-2026-84309 via pypdf (5.2.0)

pypdf PYPI version 5.2.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - aiagents4pharma =1.15.0, =0.0.6, =1.0.1, =1.0.1, =1.0.5 Source cves: CVE-2026-84309 Source advisory: OSV:PYSEC-2026-3913...

chat-with-mlx (>=0.1.0, <=0.1.11), crewai-files (>=1.9.0, <=1.10.1a1) +9 more potentially affected by CVE-2026-84309 via pypdf (4.0.2)

pypdf PYPI version 4.0.2 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - chat-with-mlx =0.1.0, =1.9.0, =3.2.0, =1.2.1, =1.0.9, =0.0.0, =0.1.2, =0.73.0, =0.94.0 Source cves: CVE-2026-84309 Source advisory: OSV:PYSEC-2026-391...

mimir-ai (0.0.3), rara-digitizer (>=1.0.0, <=1.5.8) potentially affected by CVE-2026-84311 via pypdf (5.0.0)

pypdf PYPI version 5.0.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - mimir-ai 0.0.3 - rara-digitizer =1.0.0, =1.5.8 Source cves: CVE-2026-84311 Source advisory: OSV:PYSEC-2026-3911...

automateboringstuff3 (2024.10.1), calibreweb (0.6.24) +6 more potentially affected by CVE-2026-84310 via pypdf (5.0.1)

pypdf PYPI version 5.0.1 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - automateboringstuff3 2024.10.1 - calibreweb 0.6.24 - forgy =0.1.0, =0.1.0rc1, =0.0.12, =0.0.16 Source cves: CVE-2026-84310 Source advisory:...

automateboringstuff3 (2024.10.1), calibreweb (0.6.24) +6 more potentially affected by CVE-2026-84311 via pypdf (5.0.1)

pypdf PYPI version 5.0.1 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - automateboringstuff3 2024.10.1 - calibreweb 0.6.24 - forgy =0.1.0, =0.1.0rc1, =0.0.12, =0.0.16 Source cves: CVE-2026-84311 Source advisory:...

athena-starship (>=0.0.3, <=0.0.6), conflare (>=0.1.2, <=0.1.3) +11 more potentially affected by CVE-2026-84311 via pypdf (4.1.0)

pypdf PYPI version 4.1.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - athena-starship =0.0.3, =0.1.2, =2.2.0, =0.0.1, =3.3.0, =1.14.0, =0.1.4, =4.6.2, =0.1.0, =0.1.58 Source cves: CVE-2026-84311 Source advisory:...

athena-starship (>=0.0.3, <=0.0.6), conflare (>=0.1.2, <=0.1.3) +11 more potentially affected by CVE-2026-84309 via pypdf (4.1.0)

pypdf PYPI version 4.1.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - athena-starship =0.0.3, =0.1.2, =2.2.0, =0.0.1, =3.3.0, =1.14.0, =0.1.4, =4.6.2, =0.1.0, =0.1.58 Source cves: CVE-2026-84309 Source advisory:...

docat (1.0.0) potentially affected by CVE-2026-84310 via pypdf (4.0.0)

pypdf PYPI version 4.0.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - docat 1.0.0 Source cves: CVE-2026-84310 Source advisory: OSV:PYSEC-2026-3910...

docat (1.0.0) potentially affected by CVE-2026-84311 via pypdf (4.0.0)

pypdf PYPI version 4.0.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - docat 1.0.0 Source cves: CVE-2026-84311 Source advisory: OSV:PYSEC-2026-3911...

docat (1.0.0) potentially affected by CVE-2026-84309 via pypdf (4.0.0)

pypdf PYPI version 4.0.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - docat 1.0.0 Source cves: CVE-2026-84309 Source advisory: OSV:PYSEC-2026-3913...

centricube-langchain (>=1.2.3, <=1.3.0), centricube-pyautogen (>=0.3.2, <=0.3.3) +5 more potentially affected by CVE-2026-84309 via pypdf (5.6.1)

pypdf PYPI version 5.6.1 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - centricube-langchain =1.2.3, =0.3.2, =0.3.0, =0.1.0, =0.0.11, =0.0.3, =0.0.5 Source cves: CVE-2026-84309 Source advisory: OSV:PYSEC-2026-3913...

pymorant (>=1.0.145, <=1.0.156) potentially affected by CVE-2026-84310 via pypdf (3.16.1)

pypdf PYPI version 3.16.1 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - pymorant =1.0.145, =1.0.156 Source cves: CVE-2026-84310 Source advisory: OSV:PYSEC-2026-3910...

pymorant (>=1.0.145, <=1.0.156) potentially affected by CVE-2026-84309 via pypdf (3.16.1)

pypdf PYPI version 3.16.1 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - pymorant =1.0.145, =1.0.156 Source cves: CVE-2026-84309 Source advisory: OSV:PYSEC-2026-3913...

athena-starship (>=0.0.3, <=0.0.6), conflare (>=0.1.2, <=0.1.3) +11 more potentially affected by CVE-2026-84310 via pypdf (4.1.0)

pypdf PYPI version 4.1.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - athena-starship =0.0.3, =0.1.2, =2.2.0, =0.0.1, =3.3.0, =1.14.0, =0.1.4, =4.6.2, =0.1.0, =0.1.58 Source cves: CVE-2026-84310 Source advisory:...

add-staves (>=0.1.1, <=0.2.4), agentix-agent-sdk (0.1.0) +135 more potentially affected by CVE-2026-84310 via pypdf (4.3.1)

pypdf PYPI version 4.3.1 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - add-staves =0.1.1, =0.0.1, =0.0.1.dev1, =3.0.0, =0.1.0, =1.0.0, =0.3.8.0, =0.3.2, =0.1.6, =1725528079.0.0, =0.1.4, =0.1.9 and more Source cves:...