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CVE-2026-97229 Known exploited

Integer Overflow or Wraparound in GitLab

Products / packages GitLab

Published

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Severity and exploitation

Known exploited
KEV checked 05/11/2026, 06:00:33 UTCAdded 2026-10-29
GitLab · CVSS:3.1 · 10
Assessment vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Severity

critical10.0

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Confirmed exploited · CISA KEV

CISA has recorded exploitation in the wild. Review its required action.

Public exploit

Exploit reference published

Source-linked evidence; not proof of attacks in the wild or independent validation.

Remediation

Source guidance available

Review the recorded instructions. Guidance may be a workaround rather than a fixed version.

What this means

GitLab CE/EE versions before 19.2.8, 19.3.5, and 19.4.2 have an integer overflow weakness. An unauthenticated user may execute arbitrary code via a crafted regular expression. Impact depends on certain conditions.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Attack conditions

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.2 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 unauthenticated user to execute arbitrary code on the GitLab server via a specially crafted regular expression in a CI/CD configuration, due to insufficient regular expression validation.

Excerpt from the original source description below.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

GitLab · GitLab

GitLab

3 ranges
GitLab version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

19.2 → before 19.2.8

semver versions

19.3 → before 19.3.5

semver versions

19.4 → before 19.4.2

semver versions

unaffected

unknown

Other versions: unaffected

Product identifiers (CPE)cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

Upgrade to versions 19.2.8, 19.3.5, 19.4.2 or above.

GitLab guidance ↗

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CISA required action ↗

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

The sources identify public exploit references. We have not independently tested them; their availability does not establish exploitation in the wild.

hackerone.com/reports/4055749 ↗Attributed to GitLabhackerone.com/reports/4058589 ↗Attributed to GitLab

Original source description

Read the full publisher description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.2 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 unauthenticated user to execute arbitrary code on the GitLab server via a specially crafted regular expression in a CI/CD configuration, due to insufficient regular expression validation.

References

7 sources
gitlab.com/gitlab-org/gitlab/-/work_items/630686
Source referenceGitLab
hackerone.com/reports/4055749
Public exploit referenceGitLab
hackerone.com/reports/4058589
Public exploit referenceGitLab
docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/
Release notesGitLab
www.cisa.gov/known-exploited-vulnerabilities-catalog
Security advisoryCISA-ADP
rapid7/metasploit-framework · pull request #22017
PatchCVE
View 1 more references
www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/
Security advisoryCVE

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-97229

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-190 ↗

CWE-190: Integer Overflow or Wraparound

GitLab

Related →
Contributing organizations · 3
GitLab

Assigning organization

2026-10-13
CISA-ADP

Additional data publisher

2026-10-30
CVE

Additional data publisher

2026-10-30

Timeline

All times UTC

  1. Advisory published

    Publication date supplied by the source.

  2. Added to CISA KEV

    CISA recorded known exploitation.

  3. Source updated

    Latest modification date supplied by the source.

  4. Last imported by cve.new

    Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes
  1. CVE · CVE-2026-97229

    Observed 2026-10-31T00:35:11.461Z · upstream updated 2026-10-30T23:18:16.598Z

    References changed

    before

    [
  "https://gitlab.com/gitlab-org/gitlab/-/work_items/630686",
  "https://hackerone.com/reports/4055749",
  "https://hackerone.com/reports/4058589",
  "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/",
  "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-97229"
]

    after

    [
  "https://gitlab.com/gitlab-org/gitlab/-/work_items/630686",
  "https://hackerone.com/reports/4055749",
  "https://hackerone.com/reports/4058589",
  "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/",
  "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-97229",
  "https://github.com/rapid7/metasploit-framework/pull/22017",
  "https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/"
]
  2. CVE · CVE-2026-97229

    Observed 2026-10-30T04:21:17.464Z · upstream updated 2026-10-30T03:55:54.495Z

    Prioritization updated

    before

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-10-29T19:50:05.704572Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "active"
      },
      {
        "name": "Automatable",
        "value": "yes"
      },
      {
        "name": "Technical Impact",
        "value": "total"
      }
    ]
  }
]

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-10-13T00:00:00+00:00",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "active"
      },
      {
        "name": "Automatable",
        "value": "yes"
      },
      {
        "name": "Technical Impact",
        "value": "total"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.