CVE-2026-81700

jahlives openssl_encrypt

Published 27 Aug 2026 · updated 1 Sept 2026 · Analyzed

9.3 Critical · CVSS 4.0, vulncheck.com

Description

openssl_encrypt versions before 1.4.9 contain a signature verification vulnerability in gpg_runner.verify_detached that accepts revoked and expired keys by only checking VALIDSIG status without inspecting REVKEYSIG, EXPKEYSIG, or gpg exit codes. Attackers holding compromised-then-revoked signing keys or expired project keys can bypass signature verification to execute malicious plugins in the host process.

References

github.com/jahlives/openssl_encrypt/security/advisories/GHSA-x38r-8wf3-q9hq · Vendor Advisory
www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-gpg-signature-verification-bypass · Third Party Advisory