CVE-2020-13334 json
In GitLab versions prior to 13.2.10, 13.3.7 and 13.4.2, improper authorization checks allow a non-member of a project/group to change the c…
published 2020-10-07 6 y ago modified 2026-09-08 2 mo ago also BIT-gitlab-2020-13334 , EUVD-2020-5594
- cvss
- 5.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
Summary
In GitLab versions prior to 13.2.10, 13.3.7 and 13.4.2, improper authorization checks allow a non-member of a project/group to change the confidentiality attribute of issue via mutation GraphQL query
Patch / fix
- bitnami gitlab 13.2.10, 13.3.7, 13.4.2
- gitlab gitlab 13.2.10, 13.3.7, 13.4.2
- gitlab gitlab_enterprise 13.2.10, 13.3.7, 13.4.2
Exploit prediction
1.53% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | >=8.6.0, <13.2.10 >=13.3.0, <13.3.7 >=13.4.0, <13.4.2 |
13.2.10 13.3.7 13.4.2 |
Affected products
- GitLab GitLab
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
- Technology feeds
References
-
gitlab.com
/gitlab-org/cves/-/blob/master/2020/CVE-2020-13334.json
vendor-advisory, advisory
-
gitlab.com
/gitlab-org/gitlab/-/issues/195327
broken-link, web
-
hackerone.com
/reports/762271
permissions-required, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-13334
web
Sources
- CVE List CVE-2020-13334
- NVD CVE-2020-13334
- OSV BIT-gitlab-2020-13334
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.
CPEs and fixed versions use Anchore's correction of NVD's data: Enhance with deb and rpm package type records.