CVE-2026-96893 (GCVE-0-2026-96893)

Vulnerability from cvelistv5 – Published: 2026-10-13 01:05 – Updated: 2026-10-13 01:05
VLAI
Title
Improper Neutralization of Input Used for LLM Prompting in GitLab
Summary
GitLab has remediated an issue in GitLab 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 inject specially crafted content into AI agent instructions, potentially causing unintended command execution attributed to other users, due to improper neutralization of special elements in AI conversation context construction.
Severity
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
CWE
  • CWE-1427 - Improper Neutralization of Input Used for LLM Prompting
Assigner
GitLab CNA under the mitre root
CNA scorecard C 75/100 over 312 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
GitLab GitLab Affected: 19.1 , < 19.2.8 (semver)
Affected: 19.3 , < 19.3.5 (semver)
Affected: 19.4 , < 19.4.2 (semver)
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
This vulnerability has been discovered internally by GitLab team member Mert Coskuner.
Show details on NVD website
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "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",
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            }
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        }
      ],
      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N",
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      "problemTypes": [
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            {
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              "description": "CWE-1427: Improper Neutralization of Input Used for LLM Prompting",
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            }
          ]
        }
      ],
      "providerMetadata": {
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        "orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
        "shortName": "GitLab"
      },
      "references": [
        {
          "url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/607968"
        },
        {
          "url": "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to versions 19.2.8, 19.3.5, 19.4.2 or above."
        }
      ],
      "title": "Improper Neutralization of Input Used for LLM Prompting in GitLab"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
    "assignerShortName": "GitLab",
    "cveId": "CVE-2026-96893",
    "datePublished": "2026-10-13T01:05:41.162Z",
    "dateReserved": "2026-09-23T19:34:35.812Z",
    "dateUpdated": "2026-10-13T01:05:41.162Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "epss": "0.00545",
      "percentile": "0.44188"
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    "nvd": {
      "cve": {
        "affected": [
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                "cpes": [
                  "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"
                ],
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                "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"
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                    "status": "affected",
                    "version": "19.4",
                    "versionType": "semver"
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        "cveTags": [],
        "descriptions": [
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          }
        ],
        "id": "CVE-2026-96893",
        "lastModified": "2026-10-13T16:17:14.080",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
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                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
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                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N",
                "version": "3.1"
              },
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              "source": "cve@gitlab.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-10-13T02:17:00.720",
        "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/607968"
          }
        ],
        "sourceIdentifier": "cve@gitlab.com",
        "vulnStatus": "Undergoing Analysis"
      }
    }
  }
}



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