CVE-2021-22256
Improper authorization in GitLab CE/EE affecting all versions since 12.6 allowed guest users to...
Improper authorization in GitLab CE/EE affecting all versions since 12.6 allowed guest users to create issues for Sentry errors and track their status
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Improper authorization in GitLab CE/EE affecting all versions since 12.6 allowed guest users to create issues for Sentry errors and track their status
- Record
CVE-2021-22256- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
EUVDEUVD-2021-9402
Improper authorization in GitLab CE/EE affecting all versions since 12.6 allowed guest users to create issues for Sentry errors and track their status
- Record
EUVD-2021-9402- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6xw3-8926-pq6q No score
Improper authorization in GitLab CE/EE affecting all versions since 12.6 allowed guest users to...
Improper authorization in GitLab CE/EE affecting all versions since 12.6 allowed guest users to create issues for Sentry errors and track their status
- Record
GHSA-6xw3-8926-pq6q- Weakness
- CWE-863
- Updated
- 2026-11-02
NVD
Improper authorization in GitLab CE/EE affecting all versions since 12.6 allowed guest users to create issues for Sentry errors and track their status
- Record
CVE-2021-22256- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - CVSS 2.0
- 5.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
OSV
Improper authorization in GitLab CE/EE affecting all versions since 12.6 allowed guest users to create issues for Sentry errors and track their status
- Record
CVE-2021-22256- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2021-22256
Improper authorization in GitLab CE/EE affecting all versions since 12.6 allowed guest users to create issues for Sentry errors and track their status
- Record
UBUNTU-CVE-2021-22256- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
OSVBIT-gitlab-2021-22256 No score
Improper authorization in GitLab CE/EE affecting all versions since 12.6 allowed guest users to create issues for Sentry errors and track their status
- Record
BIT-gitlab-2021-22256- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-22256 is a medium vulnerability (CVSS 5.4) in Gitlab, published August 25, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.73%, the 54th percentile. Fixed in gitlab 13.12.9.