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Vulnerabilities

Vulnerability · CVE-2026-44405

In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.

Published May 6, 2026 · catalog updated Jul 24, 2026 · In Paramiko through 4.0.0

Check if you run it

No confirmed exploitation is on record for CVE-2026-44405. EPSS is 0.11%. Act only if a listed version of In Paramiko through 4.0.0 is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (In Paramiko through 4.0.0).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Low3.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.11%
Remediation
Advisory link
Affected products
See sources for product scope

In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-44405

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-44405. EPSS is 0.11%. Act only if a listed version of In Paramiko through 4.0.0 is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-327: Use of a Broken or Risky Cryptographic Algorithm. EPSS 0.11%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 6, 2026 · NIST NVD

    Detected

    In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.

  2. Jul 24, 2026 · NIST NVD

    Updated

    In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.

Sources

  • CVE.orgVulnerability recordCVE-2026-44405

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-44405

    30-day exploitation probability 0.1%

    first.org
  • NIST NVDVulnerability recordCVE-2026-44405

    In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.