CVE-2026-102996

highPriorität · verfolgen · 30EPSS 0.003 · 27. PerzentilUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.34% (27th) EPSS

CVSS 7.5 · high

Is it mine?

2 products

Prüfe deine Angriffsfläche

Who says so?

2 sources

osv · nvd

EPSS · bewertet 2026-10-28

pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF can provide a TrueType or Type1 simple font with an unusually large /Widths array, causing pypdf/_font.py Font._collect_tt_t1_character_widths to process entries beyond the 256 character codes meaningful for a simple font and consume excessive memory during operations such as text extraction. This issue is fixed in version 6.18.1.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

8.7

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 6.6–8.7

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 3.6

v4.08.7highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · security-advisories@github.com

v4.06.6mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-400USprimärCWE-400US

betroffene Produkte (2)

Betroffene Produkte und Versionsbereiche.

pypdf project pypdf< 6.18.1nvdUScpe:2.3:a:pypdf_project:pypdf:*:*:*:*:*:*:*:*
PyPI pypdf< 6.18.1osvUSpkg:pypi/pypdf

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

GHSA-g9cg-prrw-2r8qpypdf: Possible large memory usage when parsing font data2026-10-01ghsa · osvUS
### Impact An attacker who uses this vulnerability can craft a PDF which leads to large memory consumption. This requires parsing the `/Widths` entry of a TrueType or Type1 fonts with unusually large values, for example during text extraction. ### Patches This has been fixed in [pypdf==6.18.1](https://github.com/py-pdf/pypdf/releases/tag/6.18.1). ### Workarounds If you cannot upgrade yet, consider applying the changes from PR [#4072](https://github.com/py-pdf/pypdf/pull/4072).
PYSEC-2026-4155pypdf: Possible large memory usage when parsing font data2026-10-01vendor · osvUS
### Impact An attacker who uses this vulnerability can craft a PDF which leads to large memory consumption. This requires parsing the `/Widths` entry of a TrueType or Type1 fonts with unusually large values, for example during text extraction. ### Patches This has been fixed in [pypdf==6.18.1](https://github.com/py-pdf/pypdf/releases/tag/6.18.1). ### Workarounds If you cannot upgrade yet, consider applying the changes from PR [#4072](https://github.com/py-pdf/pypdf/pull/4072).

auch bekannt als (2)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

osv nvd NVD CVE.org MITRE

veröffentlicht 2026-09-30geändert 2026-10-05

verwandt (9,625)

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+9620 weitere

Referenzen (4) nvd

Externe Belege — Patches, Meldungen, Analysen.

https://github.com/py-pdf/pypdf/commit/0fb26eb8cdd01c44b3b2c9fe8329751be2f7cfd5Patch
https://github.com/py-pdf/pypdf/pull/4072PatchIssue Tracking
https://github.com/py-pdf/pypdf/releases/tag/6.18.1Release Notes
https://github.com/py-pdf/pypdf/security/advisories/GHSA-g9cg-prrw-2r8qVendor Advisory

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