GHSA-php9-fj8v-98fj

pypdf: Possible long runtimes when generating appearance streams

En bref

Publiée
Mise à jour
CVE
CVE-2026-102998
Alias
PYSEC-2026-4157
CVSS_V4
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Description

### Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires updating form field values with flattening enabled, which triggers appearance stream generation. ### Patches This has been fixed in [pypdf==6.19.0](https://github.com/py-pdf/pypdf/releases/tag/6.19.0). ### Workarounds If you cannot upgrade yet, consider applying the changes from PR [#4087](https://github.com/py-pdf/pypdf/pull/4087).

Paquets affectés

PaquetVersions
PyPI · pypdfintroduced 0, fixed 6.19.0

Références

Sources

SourceLicence
OSV.devCC-BY 4.0 — GitHub Advisory Database