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PYSEC-2026-3774

Quick fix

PYSEC-2026-3774 — openssl-encrypt: upgrade to the fixed version with the command below.

pip install --upgrade 'openssl-encrypt>=1.4.9'

Details

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.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/openssl-encrypt

Introduced in: 0Fixed in: 1.4.9

Fixpip install --upgrade 'openssl-encrypt>=1.4.9'

References

https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-jwfm-99h7-2w5x[ADVISORY]
https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-terminal-injection-via-key-id[ADVISORY]