CVE-2021-22252

MEDIUMNVD 6.56.5—

6.5

A confusion between tag and branch names in GitLab CE/EE affecting all versions since 13.7 allowed a Developer to access protected CI variables which should only be accessible to Maintainers

CVSS v3: 6.5
EG Score: 6.5(medium)
EPSS: 50.3%
KEV: Not listed

Published

August 23, 2021

Last Modified

November 21, 2024

References (6)

cve@gitlabhttps://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22252.json
cve@gitlabhttps://gitlab.com/gitlab-org/gitlab/-/issues/330364
cve@gitlabhttps://hackerone.com/reports/1186135
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22252.json
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/gitlab-org/gitlab/-/issues/330364
af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/1186135

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-668Exposure of Resource to Wrong Sphere

Data Freshness Timeline

(refreshed 11× in last 7d / 19× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 11:40 UTCEG score recompute
2026-05-26 11:40 UTCGHSA enrichment
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 16:49 UTCepss_batch

Frequently asked(5)

What is CVE-2021-22252?

CVE-2021-22252 is a medium vulnerability published on August 23, 2021. A confusion between tag and branch names in GitLab CE/EE affecting all versions since 13.7 allowed a Developer to access protected CI variables which should only be accessible to Maintainers

When was CVE-2021-22252 disclosed?

CVE-2021-22252 was first published in the National Vulnerability Database on August 23, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-22252 actively exploited?

CVE-2021-22252 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 50.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-22252?

CVE-2021-22252 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2021-22252?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-22252, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-22252

📅 Published

🔄 Last Modified

🔗 References (6)