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CVE-2026-54651

pypdf: Possible infinite loop when processing threads/articles in writer PUBLISHED

Description (CNA)

pypdf is a free and open-source pure-python PDF library. Prior to 6.13.1, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires merging a file with threads/articles into a writer. This vulnerability is fixed in 6.13.1.

Affected (CNA)

Vendor / productVersions
py-pdf / pypdfaffected < 6.13.1

CWE

CWE-835

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.