LOW3.4
PYSEC-2026-2858
Paramiko rsakey.py allows the SHA-1 algorithm
Details
In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.
Are you affected?
Enter the version of the package you're using.
Affected packages
PyPI/paramiko
Introduced in:
0No fixed version published yet for paramiko (pip). Pin to a known-safe version or switch to an alternative.
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-44405[ADVISORY]
- https://github.com/paramiko/paramiko/commit/a4489456b6f65281e172380cc4826cee5e851dbb[WEB]
- https://github.com/paramiko/paramiko[PACKAGE]
- https://ostif.org/wp-content/uploads/2026/05/25-11-2415-REP_paramiko-security-audit_v1.1.pdf[WEB]
- https://pypi.org/project/paramiko[PACKAGE]
- https://github.com/advisories/GHSA-r374-rxx8-8654[ADVISORY]