Is CVE-2026-81700 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-81700?

CVE-2026-81700 has a CVSS v3 severity of CRITICAL (9.8).

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CVE-2026-81700

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.