CVE-2026-81695: openssl encrypt — Fix

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.

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CVSS v3.1 Score

3.3

LOW

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

EPSS — Exploit Prediction

0.0018

Probability of exploitation

0.08%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-117 CWE-117

Affected Products

Vendor	Product	Versions
jahlives	openssl_encrypt	< 1.4.9

References

Advisories & Patches

https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-jwfm-99h7-2w5x

Other References

https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-terminal-injection-via-key-id

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 3.3 (LOW).

How severe is CVE-2026-81695? +

CVE-2026-81695 has a CVSS v3.1 score of 3.3 out of 10, rated LOW. This is a low-severity vulnerability with limited impact. The EPSS score is 0.0018, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-81695? +

CVE-2026-81695 affects products from jahlives, specifically: openssl_encrypt. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-81695? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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