Vulnerability-Lookup

GHSA-HPXH-VGMP-3QP6

Vulnerability from github – Published: 2026-04-02 18:31 – Updated: 2026-04-02 18:31

Details

OpenSSH before 10.3 can use unintended ECDSA algorithms. Listing of any ECDSA algorithm in PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms is misinterpreted to mean all ECDSA algorithms.

Severity ?

3.1 (Low)


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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-35387"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-670"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-02T17:16:27Z",
    "severity": "LOW"
  },
  "details": "OpenSSH before 10.3 can use unintended ECDSA algorithms. Listing of any ECDSA algorithm in PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms is misinterpreted to mean all ECDSA algorithms.",
  "id": "GHSA-hpxh-vgmp-3qp6",
  "modified": "2026-04-02T18:31:38Z",
  "published": "2026-04-02T18:31:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35387"
    },
    {
      "type": "WEB",
      "url": "https://marc.info/?l=openssh-unix-dev\u0026m=177513443901484\u0026w=2"
    },
    {
      "type": "WEB",
      "url": "https://www.openssh.org/releasenotes.html#10.3p1"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2026/04/02/3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-35387 (GCVE-0-2026-35387)

Vulnerability from cvelistv5 – Published: 2026-04-02 16:52 – Updated: 2026-04-03 13:07

Summary

OpenSSH before 10.3 can use unintended ECDSA algorithms. Listing of any ECDSA algorithm in PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms is misinterpreted to mean all ECDSA algorithms.

Severity ?

3.1 (Low)


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

CWE

CWE-670 - Always-Incorrect Control Flow Implementation

Assigner

mitre

References

URL

Tags

	https://www.openssh.org/releasenotes.html#10.3p1
	https://marc.info/?l=openssh-unix-dev&m=177513443…
	https://www.openwall.com/lists/oss-security/2026/…

Impacted products

	Vendor	Product	Version
	OpenBSD	OpenSSH	Affected: 0 , < 10.3 (custom)

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
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        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-35387",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-03T13:07:49.157611Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        ],
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          "dateUpdated": "2026-04-03T13:07:56.358Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "product": "OpenSSH",
          "vendor": "OpenBSD",
          "versions": [
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              "lessThan": "10.3",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
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      ],
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          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.1,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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        },
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          "url": "https://marc.info/?l=openssh-unix-dev\u0026m=177513443901484\u0026w=2"
        },
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    "dateReserved": "2026-04-02T16:52:52.884Z",
    "dateUpdated": "2026-04-03T13:07:56.358Z",
    "state": "PUBLISHED"
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}

Sightings

Author	Source	Type	Date

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

GHSA-HPXH-VGMP-3QP6

CVE-2026-35387 (GCVE-0-2026-35387)

Tags

Sightings

Nomenclature