CVE-2026-54530
mediumpriority · track · 22EPSS 0.002 · 7 %ileEUFRRUUSEPSS · scored 2026-10-27
pypdf is a free and open-source pure-python PDF library. Prior to 6.13.0, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires extracting the text in layout mode. This vulnerability is fixed in 6.13.0.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (12)
Products and version ranges known to be affected.
advisories (3)
Vendor and ecosystem advisories describing this.
- GHSA-52x6-gq3r-vpf4pypdf: Possible infinite loop when retrieving fonts for layout-mode text extraction2026-06-16ghsa · osvUS
### Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires extracting the text in layout mode. ### Patches This has been fixed in [pypdf==6.13.0](https://github.com/py-pdf/pypdf/releases/tag/6.13.0). ### Workarounds If you cannot upgrade yet, consider applying the changes from PR [#3830](https://github.com/py-pdf/pypdf/pull/3830).
- CERTFR-2026-AVI-1378Multiples vulnérabilités dans les produits IBMFrançais2026-10-23vendor · certfrFR
- PYSEC-2026-3009pypdf: Possible infinite loop when retrieving fonts for layout-mode text extraction2026-07-13vendor · osvUS
### Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires extracting the text in layout mode. ### Patches This has been fixed in [pypdf==6.13.0](https://github.com/py-pdf/pypdf/releases/tag/6.13.0). ### Workarounds If you cannot upgrade yet, consider applying the changes from PR [#3830](https://github.com/py-pdf/pypdf/pull/3830).
also known as (7)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://github.com/py-pdf/pypdf/pull/3830cnnvd
- https://github.com/py-pdf/pypdf/releases/tag/6.13.0cnnvd
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-52x6-gq3r-vpf4cnnvd
- https://github.com/py-pdf/pypdf/pull/3830enisa_euvd
- https://github.com/py-pdf/pypdf/releases/tag/6.13.0enisa_euvd
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-52x6-gq3r-vpf4enisa_euvd
- https://github.com/py-pdf/pypdf/pull/3830Issue TrackingPatchnvd
- https://github.com/py-pdf/pypdf/releases/tag/6.13.0PatchRelease Notesnvd
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