CVE-2026-1282 json
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in GitLab
published 2026-02-11 8 mo ago modified 2026-09-08 2 mo ago also BIT-gitlab-2026-1282 , EUVD-2026-6257
- cvss
- 3.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 9%
- public exploits
- 0
- none known
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.6 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that could have allowed an authenticated user to inject malicious content into project labels titles.
Patch / fix
- bitnami gitlab 18.6.6, 18.7.4, 18.8.4
- GitLab GitLab 18.6.6, 18.7.4, 18.8.4
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 8 mo ago
Exploit prediction
0.20% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- hackerone.com https://hackerone.com/reports/3505596 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| OSV | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | >=18.6.0, <18.6.6 >=18.7.0, <18.7.4 >=18.8.0, <18.8.4 |
18.6.6 18.7.4 18.8.4 |
Affected products
- GitLab GitLab
Classification
- Weakness
-
- CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page
- Technology feeds
References
-
hackerone.com
/reports/3505596
technical-description, exploit, permissions-required, web
-
about.gitlab.com
/releases/2026/02/10/patch-release-gitlab-18-8-4-released/
release-notes, vendor-advisory, advisory
-
gitlab.com
/gitlab-org/gitlab/-/issues/587106
issue-tracking, permissions-required, broken-link, report
-
nvd.nist.gov
/vuln/detail/CVE-2026-1282
web
Sources
- CVE List CVE-2026-1282
- NVD CVE-2026-1282
- OSV BIT-gitlab-2026-1282
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.