CVE-2026-12802highCWE-354

CVE-2026-12802: fallo de gravedad alta en Legion of the Bouncy Castle Inc. BC-FJA

CMS AuthEnvelopedData fails to enforce tag-length on decryption

Publicada el

Seguir esta CVE+ Monitorear BC-JAVA+ Monitorear BC-LTS-JAVA

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

21Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 8.7epss 0.2%
In Bouncy Castle for Java before 1.85, CMS AuthEnvelopedData fails to enforce tag-length on decryption. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpkix-fips 1.0.12 (1.0.X series), 2.0.12 (2.0.X series) and 2.1.12 (2.1.X series).
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/U:Amber
Productos afectados
Legion of the Bouncy Castle Inc. · BC-FJALegion of the Bouncy Castle Inc. · BC-JAVALegion of the Bouncy Castle Inc. · BC-LTS-JAVA
CVEs relacionadas — Legion of the Bouncy Castle Inc. BC-FJA

En el mismo producto, de las más peligrosas a las menos.

CVE-2026-5598HIGHNon-constant time comparisons risk private key leakage in FrodoKEM.EPSS 0.9%CVE-2026-3505HIGHUnbounded PGP AEAD chunk size leads to pre-auth resource exhaustion.EPSS 0.8%CVE-2026-5588MEDIUMPKIX draft CompositeVerifier accepts empty signature sequence as valid.EPSS 0.8%CVE-2026-13586MEDIUMPKCS#12 MAC and bag-decryption KDF iteration-count bound (DoS)EPSS 0.6%CVE-2026-58060HIGHHSS public-key level count unbounded, enabling huge allocation on verifyEPSS 0.6%CVE-2025-8885MEDIUMPossible DOS in processing specially formed ASN.1 Object IdentifiersEPSS 0.6%