CVE-2026-2703: falha de média gravidade em xlnt-community xlnt
xlnt-community xlnt Encrypted XLSX File base64.cpp decode_base64 off-by-one
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 4.8epss 0.2%
A weakness has been identified in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::decode_base64 of the file source/detail/cryptography/base64.cpp of the component Encrypted XLSX File Parser. Executing a manipulation can lead to off-by-one. The attack requires local access. The exploit has been made available to the public and could be used for attacks. This patch is called f2d7bf494e5c52706843cf7eb9892821bffb0734. Applying a patch is advised to resolve this issue.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Produtos afetados
xlnt-community · xlntCVEs relacionadas — xlnt-community xlnt
No mesmo produto, das mais perigosas para as menos.
CVE-2026-3665MEDIUMxlnt-community xlnt XLSX File xlsx_consumer.cpp read_office_document null pointer dereferenceEPSS 0.2%CVE-2026-3463MEDIUMxlnt-community xlnt Compound Document binary.hpp append heap-based overflowEPSS 0.2%CVE-2026-3664MEDIUMxlnt-community xlnt Encrypted XLSX File compound_document.cpp read_directory out-of-boundsEPSS 0.2%CVE-2026-3663MEDIUMxlnt-community xlnt XLSX File compound_document.cpp xsgetn out-of-boundsEPSS 0.2%
Referências
https://github.com/oneafter/0128/blob/main/xl1/reprohttps://github.com/xlnt-community/xlnt/https://github.com/xlnt-community/xlnt/commit/f2d7bf494e5c52706843cf7eb9892821bffb0734https://github.com/xlnt-community/xlnt/issues/137https://vuldb.com/?ctiid.346649https://vuldb.com/?id.346649https://vuldb.com/?submit.754377