CVE-2026-81700

9.8 Critique

Publiée le 27/08/2026 à 19:21 · Modifiée le 01/09/2026 à 20:13 · Analysée par le NVD · Source : disclosure@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.

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Produits concernés

Scores CVSS

Version	Score	Source	Vecteur
4.0	9.3 Critique	disclosure@vulncheck.com	`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X`
3.1	9.8 Critique	disclosure@vulncheck.com	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

Faiblesses (CWE)

CWE-347

Références

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

CVE-2026-81700

Description

Produits concernés

Scores CVSS

Faiblesses (CWE)

Références

Ailleurs