CVE-2026-71870
lowPriorität · verfolgen · 13EPSS 0.001 · 2. PerzentilEUUSEPSS · bewertet 2026-10-28
pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, a crafted PDF can cause large memory consumption when pypdf/_cmap.py function parse_bfrange parses unusually large source-code or destination-string tokens in a font /ToUnicode CMap during text extraction. This issue is fixed in 6.15.0.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · low–medium · 1.1–4.8
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (3)
Betroffene Produkte und Versionsbereiche.
Advisories (2)
Hersteller- und Ökosystem-Meldungen dazu.
- GHSA-fp3f-mc75-235cpypdf: Possible large memory usage for large /ToUnicode streams2026-08-07ghsa · osvUS
### Impact An attacker who uses this vulnerability can craft a PDF which leads to large memory consumption. This requires parsing the `/ToUnicode` entry of a font with unusually large values, for example during text extraction. ### Patches This has been fixed in [pypdf==6.15.0](https://github.com/py-pdf/pypdf/releases/tag/6.15.0). ### Workarounds If you cannot upgrade yet, consider applying the changes from PR [#3944](https://github.com/py-pdf/pypdf/pull/3944).
- PYSEC-2026-3655pypdf: Possible large memory usage for large /ToUnicode streams2026-08-10vendor · osvUS
### Impact An attacker who uses this vulnerability can craft a PDF which leads to large memory consumption. This requires parsing the `/ToUnicode` entry of a font with unusually large values, for example during text extraction. ### Patches This has been fixed in [pypdf==6.15.0](https://github.com/py-pdf/pypdf/releases/tag/6.15.0). ### Workarounds If you cannot upgrade yet, consider applying the changes from PR [#3944](https://github.com/py-pdf/pypdf/pull/3944).
auch bekannt als (6)
Weitere Namen und Kennungen dieser Entität.
quellen
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Referenzen (12)
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/py-pdf/pypdf/commit/afba8080e19d29a3c256a742b340995e695b35aacnnvd
- https://github.com/py-pdf/pypdf/pull/3944cnnvd
- https://github.com/py-pdf/pypdf/releases/tag/6.15.0cnnvd
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-fp3f-mc75-235ccnnvd
- https://github.com/py-pdf/pypdf/commit/afba8080e19d29a3c256a742b340995e695b35aaenisa_euvd
- https://github.com/py-pdf/pypdf/pull/3944enisa_euvd
- https://github.com/py-pdf/pypdf/releases/tag/6.15.0enisa_euvd
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-fp3f-mc75-235cenisa_euvd
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