Terminal Injection Vulnerability in OpenSSL_Encrypt by OpenSSL
CVE-2026-81696

9.3CRITICAL

Key Information:

Vendor

Jahlives

Status
OpenSSL Encrypt
Vendor
CVE Published:
27 August 2026

What is CVE-2026-81696?

OpenSSL_Encrypt versions prior to 1.4.9 are vulnerable to a terminal injection flaw caused by inadequate sanitization of terminal control characters in file metadata generated by the info command. This vulnerability allows attackers to craft malicious files embedded with escape sequences, which can manipulate terminal output and potentially mislead users by altering displayed verification information, posing significant security risks.

Affected Version(s)

openssl_encrypt 0 < 1.4.9

openssl_encrypt 1.4.9

References

https://github.com/jahlives/openssl_encrypt/security/advi...
vendor-advisory
https://www.vulncheck.com/advisories/openssl-encrypt-befo...
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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