CVE-2023-0921
A lack of length validation in GitLab CE/EE affecting all versions from 8.3 before 15.10.8, 15.11 before 15.11.7, and 16.0 before 16.0.2 allows an authenticated attacker to create a large Issue description via GraphQL which, when repeatedly requested,…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 84.4%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
Description
A lack of length validation in GitLab CE/EE affecting all versions from 8.3 before 15.10.8, 15.11 before 15.11.7, and 16.0 before 16.0.2 allows an authenticated attacker to create a large Issue description via GraphQL which, when repeatedly requested, saturates CPU usage.
- CVSS 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- EPSS
- 84.44% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-770
- Affected
- gitlab/gitlab
- Source
- cve@gitlab.com
EPSS 84.4% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-0921.jsonVendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/392433Issue Tracking, Vendor Advisory
- https://hackerone.com/reports/1869839Permissions Required, Third Party Advisory
- https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-0921.jsonVendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/392433Issue Tracking, Vendor Advisory
- https://hackerone.com/reports/1869839Permissions Required, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.