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GHSA-jj6c-8h6c-hppx | Mondoo Vulnerability Intelligence

Vulnerability IntelligenceGHSA-jj6c-8h6c-hppx

GHSA-jj6c-8h6c-hppx

MEDIUM5.3

pypdf has long runtimes for wrong size values in cross-reference and object streams

Published Apr 15, 2026

Modified 6 months ago

Fix available

Details

Impact

An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with wrong large /Size values or object streams with wrong large /N values.

Patches

This has been fixed in pypdf==6.10.1.

Workarounds

If you cannot upgrade yet, consider applying the changes from PR #3733.

Affected Packages

pypdf

PyPI

Fixed in:

6.10.1

References

ADVISORY

https://github.com/advisories/GHSA-jj6c-8h6c-hppx

PACKAGE

https://github.com/py-pdf/pypdf

WEB

https://github.com/py-pdf/pypdf/commit/62338e9d36419cf193ccec7331784f45df1d70b3

WEB

https://github.com/py-pdf/pypdf/pull/3733

WEB

https://github.com/py-pdf/pypdf/releases/tag/6.10.1

WEB

https://github.com/py-pdf/pypdf/security/advisories/GHSA-jj6c-8h6c-hppx

ADVISORY

https://nvd.nist.gov/vuln/detail/CVE-2026-41168

Aliases

CVE-2026-41168

CVSS Analysis

CVSS v4.0

4.8

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Attack Requirements

NoneAT:N

Privileges Required

NonePR:N

User Interaction

PassiveUI:P

Vulnerable System

Vuln. Confidentiality

NoneVC:N

Vuln. Integrity

NoneVI:N

Vuln. Availability

LowVA:L

Subsequent System

Subseq. Confidentiality

NoneSC:N

Subseq. Integrity

NoneSI:N

Subseq. Availability

NoneSA:N

4.8/CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

CVE-2026-41168

Ecosystems

PyPI

Timeline

PublishedApr 15, 2026

ModifiedApr 24, 2026