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CVE-2026-6269

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to modify hidden merge requests due to incorrect authorization enforcements.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4de8a31817550e61a65a4c0cdca0ba2f96705896c98592dfe1ff0394115a0a4e
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","product":"GitLab","repo":"git://git@gitlab.com:gitlab-org/gitlab.git","vendor":"GitLab","versions":[{"lessThan":"18.10.8","status":"affected","version":"15.10","versionType":"semver"},{"lessThan":"18.11.5","status":"affected","version":"18.11","versionType":"semver"},{"lessThan":"19.0.2","status":"affected","version":"19.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:beaa5f8e0577e5feea653dc6a6249221890f526680945a8773990f599a69c58f · sha256:b98edc731edd4fa7… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:beaa5f8e0577e5feea653dc6a6249221890f526680945a8773990f599a69c58f · sha256:b98edc731edd4fa7… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-863","description":"CWE-863: Incorrect Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:beaa5f8e0577e5feea653dc6a6249221890f526680945a8773990f599a69c58f · sha256:b98edc731edd4fa7… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"url":"https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:beaa5f8e0577e5feea653dc6a6249221890f526680945a8773990f599a69c58f · sha256:b98edc731edd4fa7… · /containers/cna/references/2
{"url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/596625"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:beaa5f8e0577e5feea653dc6a6249221890f526680945a8773990f599a69c58f · sha256:b98edc731edd4fa7… · /containers/cna/references/0
{"name":"HackerOne Bug Bounty Report #3661880","tags":["technical-description","exploit","permissions-required"],"url":"https://hackerone.com/reports/3661880"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:beaa5f8e0577e5feea653dc6a6249221890f526680945a8773990f599a69c58f · sha256:b98edc731edd4fa7… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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