PT-2026-122436
Publicado
2026-10-23
·
Atualizado
2026-10-23
Descrição por
CVSS 4.0
7.1
AltaMétricasAV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Impact
An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with repeated malformed cross-reference streams.
Patches
This has been fixed in pypdf==6.21.2.
Workarounds
If you cannot upgrade yet, consider applying the changes from PR #4240.
Notes
This is a follow-up to https://github.com/py-pdf/pypdf/security/advisories/GHSA-55h5-xmcq-c37v, which had the side-effect of still loading the whole stream again despite the cache being present.
Explorabilidade
Correção
Impactos
Fornecedores
Produtos afetados
Identificadores relacionados
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