CVE-2026-0595 json
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
published 8mo ago modified last mo. also BIT-gitlab-2026-0595 , EUVD-2026-6217
- cvss
- 7.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 18%
- public exploits
- 0
- none known
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.9 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that, under certain conditions could have allowed an authenticated user to add unauthorized email addresses to victim accounts through HTML injection in test case 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
Is CVE-2026-0595 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 8mo ago
Exploit prediction
0.26% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- hackerone.com https://hackerone.com/reports/3486862 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/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 | 7.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | >=13.9.0, <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-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
hackerone.com
/reports/3486862
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/584975
issue-tracking, permissions-required, broken-link, report
-
nvd.nist.gov
/vuln/detail/CVE-2026-0595
web
Sources
- CVE List CVE-2026-0595
- NVD CVE-2026-0595
- OSV BIT-gitlab-2026-0595
Fencer Intel 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.