9.9 CriticalCWE-502
CVE-2026-87719
Deserialization of Untrusted Data in GitLab
Status
- Not in CISA KEV
- Vendor fix available
Exploit probabilityEPSSchecked 26 Oct
0.6%probability of exploitation in the next 30 days
Higher than 46% of scored CVEs
SeverityCVSS
9.9Critical
Description NVD
GitLab has remediated an issue in GitLab EE affecting all versions from 18.3 before 18.11.12, 19.0 before 19.0.9, 19.1 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that under certain conditions could allow an authenticated user with Duo Chat access to obtain Advanced Search instance configurations and sensitive credentials using a specially crafted GraphQL subscription argument to bypass serialization and perform server object lookup.
Coverage 5 articles · 5 outlets
See the full timelineShow as table
| Published (UTC) | Outlet | Headline |
|---|---|---|
| Fri 11 Sep · 01:30 UTC | SecurityOnline | GitLab Fixes Critical Path Traversal Flaw Exposing Server Files |
| Fri 11 Sep · 16:30 UTC | SecurityWeek | Attackers Exploit Critical GitLab Flaw Within a Day of Patches |
| Fri 11 Sep · 17:37 UTC | The Hacker News | GitLab Patches CVSS 10 Flaw Exploited to Steal Secrets |
| Sun 13 Sep · 12:47 UTC | Security Affairs | GitLab Zero Day Lets Attackers Steal Secrets From Public Servers |
| Mon 14 Sep · 11:57 UTC | Rapid7 | Critical GitLab Flaw Exploited as CISA Orders Emergency Patching |
- Critical GitLab Flaw Exploited as CISA Orders Emergency PatchingRapid7 · mentions it in passing
- GitLab Zero Day Lets Attackers Steal Secrets From Public ServersSecurity Affairs · mentions it in passing
- GitLab Patches CVSS 10 Flaw Exploited to Steal SecretsThe Hacker News · mentions it in passing
- Attackers Exploit Critical GitLab Flaw Within a Day of PatchesSecurityWeek · mentions it in passing
- GitLab Fixes Critical Path Traversal Flaw Exposing Server FilesSecurityOnline · first in our coverage · mentions it in passing