01 Record
CVE-2026-1388
Inefficient Regular Expression Complexity in GitLab
HighPUBLISHEDCNA: GitLab
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
02 Description
Inefficient Regular Expression Complexity in GitLab
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.40% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 34.9% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-02-25 20:05Z8 MO AGO
- Last updated
- 2026-02-26 15:07Z8 MO AGO
- Reserved
- 2026-01-23
- Assigning CNA
- GitLab
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-1333Inefficient Regular Expression ComplexityBase
- Data version
- 5.2
- Document digest
- 9cc288114eeb2ab55a5603ddccd36c74f3480bed27f91b463e0c5348c316bfb6
05 Affected products
VendorProductVersionsPlatforms
06 References
- gitlab.comGitLab Issue #587560https://gitlab.com/gitlab-org/gitlab/-/issues/587560
- hackerone.comHackerOne Bug Bounty Report #3482893https://hackerone.com/reports/3482893
- about.gitlab.comhttps://about.gitlab.com/releases/2026/02/25/patch-release-gitlab-18-9-1-released/
07 Remediation
Upgrade to versions 18.7.5, 18.8.5, 18.9.1 or above.
08 Fixed in
Ubuntu 16.04 LTS
- gitlab No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.