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

높음 7.5CVE-2026-59937 · GHSA-55h5-xmcq-c37v · PYSEC-2026-3610 · Published 08/07/2026 · updated 25/10/2026

요약

CVE-2026-59937은(는) pypdf, pypdf (pypdf project)에 영향을 주는 높음 (CVSS 7.5) 취약점입니다.
향후 30일 내 악용 확률(EPSS): 0.62%, 전체 취약점의 49.7%보다 높음.
조치: 6.14.0 이상으로 업데이트하세요.

Package	Affected versions	Patched versions
pypdf PyPI	`< 6.14.0`	`6.14.0`
pypdf pypdf_project	`< 6.14.0`	`6.14.0`

Description

Impact

An 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.

Patches

This has been fixed in pypdf==6.14.0.

Workarounds

If you cannot upgrade yet, consider applying the changes from PR #3887.

NVD description

pypdf is a free and open-source pure-python PDF library. Prior to 6.14.0, an attacker can craft a PDF with repeated malformed cross-reference streams that cause pypdf to spend long runtimes recovering broken cross-reference table entries. This issue is fixed in version 6.14.0.

References

py-pdf/pypdf security advisory · WEB
nvd.nist.gov/vuln/detail/CVE-2026-59937 · ADVISORY
py-pdf/pypdf#3887 · WEB
py-pdf/pypdf commit b5fc5aa · WEB
py-pdf/pypdf · PACKAGE
py-pdf/pypdf release 6.14.0 · WEB
pypi.org/project/pypdf · PACKAGE
GitHub Advisory GHSA-55h5-xmcq-c37v · ADVISORY

pypdf의 다른 취약점

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Package

Affected versions

Patched versions

pypdf

PyPI

< 6.14.0

6.14.0

pypdf

pypdf_project

< 6.14.0

6.14.0

Description

Impact

An 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.

Patches

This has been fixed in pypdf==6.14.0.

Workarounds

If you cannot upgrade yet, consider applying the changes from PR #3887.

NVD description

pypdf의 다른 취약점

모두 보기 →