Low severity · published May 5, 2026
CVE-2026-44405
In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm
3.4
CVSS
0.1%
EPSS
No
On KEV
Description
In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm.
CVSS vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
Attack vector
Adjacent
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 1% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PA
Paramiko · Paramiko
before a4489456b6f65281e172380cc4826cee5e851dbb · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-44405
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-44405
github.com
https://github.com/paramiko/paramiko/commit/a4489456b6f65281e172380cc4826cee5e851dbb
ostif.org
https://ostif.org/wp-content/uploads/2026/05/25-11-2415-REP_paramiko-security-audit_v1.1.pdf
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