FKIE_CVE-2026-92883

Vulnerability from fkie_nvd - Published: 2026-10-13 02:17 - Updated: 2026-10-13 02:17
Severity
8.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.1 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user to execute arbitrary JavaScript in the context of other users' browser sessions via a specially crafted repository, due to improper sanitization of HTML attributes in syntax-highlighted output.
References
cve@gitlab.comhttps://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/
cve@gitlab.comhttps://gitlab.com/gitlab-org/gitlab/-/work_items/629523
cve@gitlab.comhttps://hackerone.com/reports/3936831
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "product": "GitLab",
          "repo": "https://gitlab.com/gitlab-org/gitlab",
          "vendor": "GitLab",
          "versions": [
            {
              "lessThan": "19.2.8",
              "status": "affected",
              "version": "19.1",
              "versionType": "semver"
            },
            {
              "lessThan": "19.3.5",
              "status": "affected",
              "version": "19.3",
              "versionType": "semver"
            },
            {
              "lessThan": "19.4.2",
              "status": "affected",
              "version": "19.4",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "cve@gitlab.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.1 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2  that, under certain conditions, could have allowed an authenticated user to execute arbitrary JavaScript in the context of other users\u0027 browser sessions via a specially crafted repository, due to improper sanitization of HTML attributes in syntax-highlighted output."
    }
  ],
  "id": "CVE-2026-92883",
  "lastModified": "2026-10-13T02:17:00.570",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.7,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 5.8,
        "source": "cve@gitlab.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-10-13T02:17:00.570",
  "references": [
    {
      "source": "cve@gitlab.com",
      "url": "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/"
    },
    {
      "source": "cve@gitlab.com",
      "url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/629523"
    },
    {
      "source": "cve@gitlab.com",
      "url": "https://hackerone.com/reports/3936831"
    }
  ],
  "sourceIdentifier": "cve@gitlab.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "cve@gitlab.com",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
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  • 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.



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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.