Output Injection Vulnerability in OpenSSL Encrypt by jahlives
CVE-2026-81694

9.3CRITICAL

Key Information:

Vendor

Jahlives

Status
OpenSSL Encrypt
Vendor
CVE Published:
27 August 2026

What is CVE-2026-81694?

The openssl-encrypt package, specifically in versions up to 1.4.8, is susceptible to an output injection vulnerability due to unsanitized filenames being printed in the verify-usb command output. When filenames are read from untrusted sources, attackers can craft filenames that include control characters, enabling them to manipulate the command-line output. This could allow the attacker to display falsified messages (such as a forged 'PASSED' verdict) while concealing actual tampering events. The vulnerability has been addressed in version 1.4.9 by implementing a sanitization process for filenames using sanitize_for_display().

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/verify-usb-before-1....
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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