Vulnerability · Published Aug 27, 2026 · Assigned by VulnCheck

CVE-2026-81695openssl_encrypt before 1.4.9 Terminal Injection via key_id

Low 3.3

In plain English

A low-severity security flaw in openssl_encrypt from jahlives. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.2%top 83.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
PyPIopenssl-encrypt1.4.9PYSEC-2026-3774

Affected products (as reported)

VendorProductVersions
jahlives openssl_encrypt 0 – before 1.4.9

Weakness: CWE-117 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

References