CVE-2021-22171

mediumpriority · track · 26EPSS 0.013 · 71 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.35% (71st) EPSS

CVSS 4.3 · medium

Is it mine?

12 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

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

cvss

Technical severity, 0–10. One row per scoring source.

7.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.3–7.3

v2.04.3mediumAV:N/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.17.3highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:Nsecondary · ENISA EU

v3.17.3highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:Nsecondary · cve@gitlab.comexploitability 2.1 · impact 5.2

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USprimary

affected products (12)

Products and version ranges known to be affected.

Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
Open Source Arch Linuxall versionscert_bundDEcpe:/o:archlinux:archlinux:-
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
GitLab GitLab11.5.0, → 13.5.6enisa_euvdEU
GitLab GitLab13.6.0, → 13.6.4enisa_euvdEU
GitLab GitLab13.7.0, → 13.7.2enisa_euvdEU
gitlab gitlab11.5.0 → 13.5.6nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab13.6.0 → 13.6.4nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab13.7.0 → 13.7.2nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Bitnami gitlab11.5.0 → 13.5.6osvUSpkg:bitnami/gitlab
Bitnami gitlab13.6.0 → 13.6.4osvUSpkg:bitnami/gitlab
Bitnami gitlab13.7.0 → 13.7.2osvUSpkg:bitnami/gitlab

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-1809GitLab: Mehrere SchwachstellenDeutsch2021-01-07csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann eine Schwachstelle in GitLab ausnutzen, um beliebigen Programmcode auszuführen, einen Denial of Service Zustand herzustellen oder Informationen offenzulegen.
BIT-gitlab-2021-221712024-03-06vendor · osvUS
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

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2021-01-15modified 2026-06-17

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Related entries.

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+7712 more

references (11)

External citations — patches, advisories, analysis.

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