High severity · published Aug 2, 2023
CVE-2023-3994
An issue has been discovered in GitLab CE/EE affecting all versions starting from 9.3 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2…
7.5
CVSS
1%
EPSS
No
On KEV
Description
An issue has been discovered in GitLab CE/EE affecting all versions starting from 9.3 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. A Regular Expression Denial of Service was possible via sending crafted payloads which use ProjectReferenceFilter to the preview_markdown endpoint.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitLab · GitLab
9.3 before 16.0.8; 9.3 before 16.0.8; 16.1 before 16.1.3; 16.1 before 16.1.3; 16.2 before 16.2.2; 16.2 before 16.2.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-3994
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-3994
Broken Link
https://gitlab.com/gitlab-org/gitlab/-/issues/416225
Permissions Required
https://hackerone.com/reports/1963255
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