pypdf: Manipulated XMP metadata streams can exhaust RAM

보통 5.5CVE-2026-48735 · GHSA-wjqc-6w8f-h24c · PYSEC-2026-3025 · Published 28/05/2026 · updated 14/10/2026

요약

CVE-2026-48735은(는) pypdf, pypdf (pypdf project)에 영향을 주는 보통 (CVSS 5.5) 취약점입니다.
향후 30일 내 악용 확률(EPSS): 0.13%, 전체 취약점의 2.5%보다 높음.
조치: 6.12.1 이상으로 업데이트하세요.

Package	Affected versions	Patched versions
pypdf PyPI	`< 6.12.1`	`6.12.1`
pypdf pypdf_project	`< 6.12.1`	`6.12.1`

Description

Impact

An attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing large XMP metadata, possibly with lots of unnecessary elements.

Patches

This has been fixed in pypdf==6.12.1.

Workarounds

If you cannot upgrade yet, consider applying the changes from PR #3796.

NVD description

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.1, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing large XMP metadata, possibly with lots of unnecessary elements. This vulnerability is fixed in 6.12.1.

References

py-pdf/pypdf security advisory · WEB
nvd.nist.gov/vuln/detail/CVE-2026-48735 · ADVISORY
py-pdf/pypdf#3796 · WEB
py-pdf/pypdf · PACKAGE
py-pdf/pypdf release 6.12.1 · WEB
pypi.org/project/pypdf · PACKAGE
GitHub Advisory GHSA-wjqc-6w8f-h24c · ADVISORY

pypdf의 다른 취약점

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Package

Affected versions

Patched versions

pypdf

PyPI

< 6.12.1

6.12.1

pypdf

pypdf_project

< 6.12.1

6.12.1

Description

Impact

An attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing large XMP metadata, possibly with lots of unnecessary elements.

Patches

This has been fixed in pypdf==6.12.1.

Workarounds

If you cannot upgrade yet, consider applying the changes from PR #3796.

NVD description

pypdf의 다른 취약점

모두 보기 →