October 16, 2026

CVE Watchtower

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CVE-2026-5173NVD

Vulnerability Summary

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.9.6 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user to invoke unintended server-side methods through websocket connections due to improper access control.
Severity Level
HIGH(8.5)
Published Date
Apr 8, 2026
Last Modified
Jul 24, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.43%Probability
Root Weakness (CWE)
CWE-749: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v3.1 Base Metrics — Score 8.5 (HIGH)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityHigh
IntegrityLow
AvailabilityNone

Affected & Patched Versions

Affected Versions
  • Gitlab Gitlab >= 16.9.6 and < 18.8.9
  • Gitlab Gitlab >= 18.9.0 and < 18.9.5
  • Gitlab Gitlab >= 18.10.0 and < 18.10.3
Patched Versions
  • Gitlab Gitlab 18.8.9
  • Gitlab Gitlab 18.9.5
  • Gitlab Gitlab 18.10.3
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🚫Ad-Free — Uninterrupted experience.
🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References