Vulnerability-Lookup

FKIE_CVE-2026-44405

Vulnerability from fkie_nvd - Published: 2026-05-06 00:16 - Updated: 2026-05-07 15:53

Severity ?

3.4 (Low) - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

Summary

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

References

	URL	Tags
	cve@mitre.org	https://github.com/paramiko/paramiko/commit/a4489456b6f65281e172380cc4826cee5e851dbb
	cve@mitre.org	https://ostif.org/wp-content/uploads/2026/05/25-11-2415-REP_paramiko-security-audit_v1.1.pdf

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm."
    }
  ],
  "id": "CVE-2026-44405",
  "lastModified": "2026-05-07T15:53:49.717",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 3.4,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 1.4,
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-05-06T00:16:04.883",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/paramiko/paramiko/commit/a4489456b6f65281e172380cc4826cee5e851dbb"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://ostif.org/wp-content/uploads/2026/05/25-11-2415-REP_paramiko-security-audit_v1.1.pdf"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-327"
        }
      ],
      "source": "cve@mitre.org",
      "type": "Primary"
    }
  ]
}

CVE-2026-44405 (GCVE-0-2026-44405)

Vulnerability from cvelistv5 – Published: 2026-05-05 23:50 – Updated: 2026-05-06 12:54

Summary

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

Severity ?

3.4 (Low)


                        
                          CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

CWE

CWE-327 - Use of a Broken or Risky Cryptographic Algorithm

Assigner

mitre

References

2 references

URL	Tags
https://github.com/paramiko/paramiko/commit/a4489…
https://ostif.org/wp-content/uploads/2026/05/25-1…

Impacted products

1 product

Vendor	Product	Version
Paramiko	Paramiko	Affected: 0 , < a4489456b6f65281e172380cc4826cee5e851dbb (git)

Show details on NVD website

JSON

To clipboard

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      {
        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2026-44405",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-06T12:54:08.285055Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-06T12:54:17.468Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
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    "cna": {
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          "defaultStatus": "unaffected",
          "packageURL": "pkg:pypi/paramiko",
          "product": "Paramiko",
          "vendor": "Paramiko",
          "versions": [
            {
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              "status": "affected",
              "version": "0",
              "versionType": "git"
            }
          ]
        }
      ],
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        {
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                  "criteria": "cpe:2.3:a:paramiko:paramiko:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "a4489456b6f65281e172380cc4826cee5e851dbb",
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            "attackComplexity": "HIGH",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.4,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N",
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              "lang": "en",
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          "url": "https://github.com/paramiko/paramiko/commit/a4489456b6f65281e172380cc4826cee5e851dbb"
        },
        {
          "url": "https://ostif.org/wp-content/uploads/2026/05/25-11-2415-REP_paramiko-security-audit_v1.1.pdf"
        }
      ],
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  "cveMetadata": {
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    "assignerShortName": "mitre",
    "cveId": "CVE-2026-44405",
    "datePublished": "2026-05-05T23:50:52.811Z",
    "dateReserved": "2026-05-05T23:50:52.416Z",
    "dateUpdated": "2026-05-06T12:54:17.468Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-44405

CVE-2026-44405 (GCVE-0-2026-44405)

Tags

Sightings

Nomenclature