CVE-2026-81707
Critical · CVSS 9.3Published 2026-08-27
CVSS
9.3
Critical
EPSS
—
exploit probability
Active Exploit
No
not yet listed
What is CVE-2026-81707?
openssl_encrypt before 1.4.9 fails to sanitize the email field of imported identity documents, allowing attackers to inject ANSI escape sequences that forge the fingerprint verification line displayed to users. Attackers can deliver a crafted identity bundle through normal contact-exchange flows or keyserver responses to manipulate terminal output and display a fraudulent fingerprint, bypassing the out-of-band verification mechanism that protects against key substitution attacks.
CVSS Score Explained
CVSS 9.3 is Critical — the highest severity tier. Attackers can likely exploit this remotely with no authentication and cause full system compromise. Patch immediately.
EPSS Exploitation Probability
No EPSS score yet — model needs more data on this CVE.
References & Patches
- ›https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-qjr2-x6mr-8xgf
- ›https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-ansi-escape-injection-via-identity-email
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