CVE-2026-81695
openssl_encrypt versions before 1.4.9 fail to escape attacker-controlled key_id values printed to stderr during decrypt auto-detection. Attackers can craft encrypted files with malicious key_id containing escape sequences to repaint terminal output and forge authenticity verification blocks.
- Published Aug 27, 2026
- CVSS 9.3 critical
- 0.2% chance of exploitation in the next 30 days (EPSS)
- A fix is available