Paramiko up to 4.0.0 rsakey.py risky encryption

CVSS Meta Temp Score
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CTI Interest Score
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3.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Paramiko up to 4.0.0. Affected is an unknown function of the file rsakey.py. The manipulation results in risky encryption. This vulnerability is reported as CVE-2026-44405. The attacker must have access to the local network to execute the attack. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Paramiko up to 4.0.0. Affected is some unknown functionality of the file rsakey.py. The manipulation with an unknown input leads to a risky encryption vulnerability. CWE is classifying the issue as CWE-327. The product uses a broken or risky cryptographic algorithm or protocol. This is going to have an impact on integrity. CVE summarizes:

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

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-44405 since 05/06/2026. The exploitability is told to be difficult. The attack can only be initiated within the local network. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1600.

The vulnerability scanner Nessus provides a plugin with the ID 323070 (SUSE SLES16 Security Update : python-paramiko (SUSE-SU-2026:22192-1)), which helps to determine the existence of the flaw in a target environment.

Applying the patch a4489456b6f65281e172380cc4826cee5e851dbb is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the databases at Tenable (323070) and EUVD (EUVD-2026-27514). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.2
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.4
CNA Vector (MITRE): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Risky encryption
CWE: CWE-327 / CWE-310
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 323070
Nessus Name: SUSE SLES16 Security Update : python-paramiko (SUSE-SU-2026:22192-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: a4489456b6f65281e172380cc4826cee5e851dbb

Timelineinfo

05/06/2026 Advisory disclosed
05/06/2026 +0 days CVE reserved
05/06/2026 +0 days VulDB entry created
06/27/2026 +52 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: a4489456b6f65281e172380cc4826cee5e851dbb
Status: Confirmed

CVE: CVE-2026-44405 (🔒)
GCVE (CVE): GCVE-0-2026-44405
GCVE (VulDB): GCVE-100-361272
EUVD: 🔒

Entryinfo

Created: 05/06/2026 07:58
Updated: 06/27/2026 21:29
Changes: 05/06/2026 07:58 (65), 05/06/2026 08:40 (1), 06/27/2026 21:29 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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