CVE-2021-22171 json
Insufficient validation of authentication parameters in GitLab Pages for GitLab 11.5+ allows an attacker to steal a victim's API token if t…
published 2021-01-15 5 y ago modified 2026-09-10 1 mo ago also BIT-gitlab-2021-22171 , EUVD-2021-9317
- cvss
- 7.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 71%
- public exploits
- 0
- none known
Summary
Insufficient validation of authentication parameters in GitLab Pages for GitLab 11.5+ allows an attacker to steal a victim's API token if they click on a maliciously crafted link
Patch / fix
- bitnami gitlab 13.5.6, 13.6.4, 13.7.2
- gitlab gitlab 13.5.6, 13.6.4, 13.7.2
- gitlab gitlab_enterprise 13.5.6, 13.6.4, 13.7.2
- gitlab Arch Linux 13.7.2-1
arch linux advisories AVG-1416
Exploit prediction
1.35% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).
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 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/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 | >=11.5.0, <13.5.6 >=13.6.0, <13.6.4 >=13.7.0, <13.7.2 |
13.5.6 13.6.4 13.7.2 |
Affected products
- GitLab GitLab
Classification
- Weakness
-
- CWE-287 Improper Authentication
- Technology feeds
References
-
gitlab.com
/gitlab-org/cves/-/blob/master/2021/CVE-2021-22171.json
vendor-advisory, advisory
-
gitlab.com
/gitlab-org/gitlab-pages/-/issues/262
broken-link, web
-
hackerone.com
/reports/718460
permissions-required, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-22171
web
Sources
- CVE List CVE-2021-22171
- NVD CVE-2021-22171
- OSV BIT-gitlab-2021-22171
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.