CVE-2026-3336highCWE-295

PKCS7_verify Certificate Chain Validation Bypass in AWS-LC

21Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 8.7epss 0.8%

probabilidade de exploração

0.8%top 48% das CVEs

exploração observada

nãonenhuma fonte 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

Produtos afetados

AWS · AWS-LC

Referências

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