01 Record
CVE-2026-87719
Deserialization of Untrusted Data in GitLab
CriticalPUBLISHEDCNA: GitLab
CNA base score9.9 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
02 Description
Deserialization of Untrusted Data in GitLab
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- Not scored by EPSS
- EPSS percentile
- Not scored by EPSS
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Not recorded
- 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
- 2026-09-12 02:46Z1 HR AGO
- Last updated
- 2026-09-12 02:46Z1 HR AGO
- Reserved
- 2026-09-09
- Assigning CNA
- GitLab
- Record state
- PUBLISHED
- Severity
- Critical (CVSS 9.9)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-502Deserialization of Untrusted DataBase
- Data version
- 5.2
- Document digest
- 7e36e69a2f230ea5bd9cd43ade5c24c263c5a585eb2d6a9da1a7098392e82392
05 Affected products
VendorProductVersionsPlatforms
06 References
- gitlab.comhttps://gitlab.com/gitlab-org/gitlab/-/work_items/628160
- hackerone.comHackerOne Bug Bounty Report #4012289https://hackerone.com/reports/4012289
07 Remediation
Upgrade to versions 19.1.8, 19.2.6, 19.3.2 or above.