CVE Explorer
CVE-2026-1090
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.6 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an authenticated user, when the `markdown_placeholders` feature flag was enabled, to inject JavaScript in a browser due to improper sanitization of placeholder content in markdown processing.
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":"18.7.6","status":"affected","version":"10.6","versionType":"semver"},{"lessThan":"18.8.6","status":"affected","version":"18.8","versionType":"semver"},{"lessThan":"18.9.2","status":"affected","version":"18.9","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:846e9ee01a1f8f7c223b47902326c49806844450f6440ee4c218b98b202dc789 · sha256:4814c070851262b7… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"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"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:846e9ee01a1f8f7c223b47902326c49806844450f6440ee4c218b98b202dc789 · sha256:4814c070851262b7… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:846e9ee01a1f8f7c223b47902326c49806844450f6440ee4c218b98b202dc789 · sha256:4814c070851262b7… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"url":"https://about.gitlab.com/releases/2026/03/11/patch-release-gitlab-18-9-2-released/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:846e9ee01a1f8f7c223b47902326c49806844450f6440ee4c218b98b202dc789 · sha256:4814c070851262b7… · /containers/cna/references/2
{"url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/586478"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:846e9ee01a1f8f7c223b47902326c49806844450f6440ee4c218b98b202dc789 · sha256:4814c070851262b7… · /containers/cna/references/1
{"name":"HackerOne Bug Bounty Report #3502450","tags":["technical-description","exploit","permissions-required"],"url":"https://hackerone.com/reports/3502450"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:846e9ee01a1f8f7c223b47902326c49806844450f6440ee4c218b98b202dc789 · sha256:4814c070851262b7… · /containers/cna/references/0
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.