CVE-2026-3336highCWE-295

PKCS7_verify Certificate Chain Validation Bypass in AWS-LC

21Vexday Risk Score

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

ssvc Trackcvss 8.7epss 0.8%

probabilidad de explotación

0.8%top 48% de las CVE

explotación observada

noninguna fuente lo reporta

Improper certificate validation in PKCS7_verify() in AWS-LC allows an unauthenticated user to bypass certificate chain verification when processing PKCS7 objects with multiple signers, except the final signer. Customers of AWS services do not need to take action. Applications using AWS-LC should upgrade to AWS-LC version 1.69.0.

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

Productos afectados

AWS · AWS-LC

Referencias

https://access.redhat.com/errata/RHSA-2026:5459 https://access.redhat.com/security/cve/CVE-2026-3336 https://aws.amazon.com/security/security-bulletins/2026-005-AWS/https://bugzilla.redhat.com/show_bug.cgi?id=2444026 https://github.com/aws/aws-lc/releases/tag/v1.69.0 https://github.com/aws/aws-lc/security/advisories/GHSA-cfwj-9wp5-wqvp https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3336.json