PT-2026-37243 · Pypi · Paramiko

Published 2026-05-05 · Updated 2026-05-06 · CVE-2026-44405

Positive Technologies (AI Summary)

CVSS v3.1

3.4

Low

Base vector

AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions Paramiko versions prior to 4.0.0 a448945

Description The rsakey.py file allows the use of the SHA-1 algorithm, which is a cryptographic hash function that is no longer considered secure against well-funded attackers.

Recommendations Update to version 4.0.0 a448945 or later.

Fix

Use of a Broken Cryptographic Algorithm

Weakness Enumeration

CWE-327

Related Identifiers

CVE-2026-44405

GHSA-R374-RXX8-8654

Affected Products

Paramiko

References · 14

• https://osv.dev/vulnerability/DEBIAN-CVE-2026-44405 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-44405 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-44405 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-44405 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-44405 · Security Note
• https://osv.dev/vulnerability/GHSA-r374-rxx8-8654 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-44405 · Vendor Advisory
• https://github.com/paramiko/paramiko · Note
• https://github.com/paramiko/paramiko/commit/a4489456b6f65281e172380cc4826cee5e851dbb · Note
• https://t.me/cveNotify/162274 · Telegram Post
• https://ostif.org/wp-content/uploads/2026/05/25-11-2415-REP_paramiko-security-audit_v1.1.pdf · Note
• https://t.me/CVEtracker/52805 · Telegram Post
• https://twitter.com/CVEnew/status/2051833830873379160 · Twitter Post
• https://twitter.com/NewsNerdie/status/2052026114696994901 · Twitter Post