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CVE-2017-0926

Status: ModifiedHigh (8.8)—

Gitlab Community Edition version 10.3 is vulnerable to an improper authorization issue in the Oauth sign-in component resulting in unauthorized user login.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (2)

Debian — Debian LinuxGitlab — Gitlab

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2017-0926",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
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  },
  "affected": [
    {
      "source": "support@hackerone.com",
      "affectedData": [
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          "versions": [
            {
              "status": "affected",
              "version": "9.1.0 - 10.0.5 Fixed in 10.0.5"
            },
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              "status": "affected",
              "version": "10.1.0 - 10.1.5 Fixed in 10.1.6"
            },
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              "status": "affected",
              "version": "10.2.0 - 10.2.5 Fixed in 10.2.6"
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  "published": "2018-03-21T20:29:00.810",
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      "url": "https://about.gitlab.com/2018/01/16/gitlab-10-dot-3-dot-4-released/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://gitlab.com/gitlab-org/gitlab-ce/issues/32198",
      "tags": [
        "Exploit",
        "Issue Tracking"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://www.debian.org/security/2018/dsa-4145",
      "tags": [
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      "source": "support@hackerone.com"
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    {
      "url": "https://about.gitlab.com/2018/01/16/gitlab-10-dot-3-dot-4-released/",
      "tags": [
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "tags": [
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "support@hackerone.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-285"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Gitlab Community Edition version 10.3 is vulnerable to an improper authorization issue in the Oauth sign-in component resulting in unauthorized user login."
    },
    {
      "lang": "es",
      "value": "Gitlab Community Edition 10.3 es vulnerable a un problema de autorización incorrecta en el componente Oauth sign-in que resulta en el inicio de sesión de un usuario no autorizado."
    }
  ],
  "lastModified": "2026-06-17T00:58:32.407",
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