CVE-2026-89078 (GCVE-0-2026-89078)

Vulnerability from cvelistv5 – Published: 2026-09-23 23:05 – Updated: 2026-09-23 23:05
VLAI
Title
Double Free in GitLab
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.2 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an authenticated user to execute arbitrary code on the GitLab server due to a double free issue when parsing a specially crafted regular expression in a CI/CD configuration.
Severity
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
GitLab GitLab Affected: 19.2 , < 19.2.7 (semver)
Affected: 19.3 , < 19.3.3 (semver)
Affected: 19.4 , < 19.4.1 (semver)
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Thanks [joaxcar](https://hackerone.com/joaxcar) for reporting this vulnerability through our HackerOne bug bounty program
Show details on NVD website
To clipboard 

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        }
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        }
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
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          "value": "Upgrade to versions 19.2.7, 19.3.3, 19.4.1 or above."
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      "title": "Double Free in GitLab"
    }
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  "cveMetadata": {
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    "cveId": "CVE-2026-89078",
    "datePublished": "2026-09-23T23:05:20.132Z",
    "dateReserved": "2026-09-10T19:06:37.759Z",
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    "state": "PUBLISHED"
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          }
        ],
        "id": "CVE-2026-89078",
        "lastModified": "2026-09-24T00:17:22.060",
        "metrics": {
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      }
    }
  }
}



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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.

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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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