MEDIUM6.8

PYSEC-2026-3781

Quick fix

PYSEC-2026-3781 — openssl-encrypt: upgrade to the fixed version with the command below.

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

Details

openssl_encrypt before 1.4.9 fails to prevent namespace collisions between own identities and contacts in IdentityStore, allowing attackers to create shadowed contact entries invisible until the corresponding own identity is deleted. When the own identity is deleted, the shadowed contact becomes visible and resolves to the attacker's keys, enabling silent key substitution for encrypted files.

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-8gmx-w9m8-vx7q[ADVISORY]
https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-key-substitution-via-identity-shadowing[ADVISORY]