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Critical GitLab Flaw Enables XSS and Unauthenticated DoS Attacks

ID: 42aaa9aa-3efb-5299-9cfa-7b84d70d642b

STIX ID: report--42aaa9aa-3efb-5299-9cfa-7b84d70d642b

Feed Name: Cyber Press

Threat Score
75/100

Date Published: 2026-05-14

Date Updated: 2026-05-14

Author: AnuPriya

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GitLab released emergency patches addressing 25 vulnerabilities in self-managed CE/EE deployments — notably four high-severity XSS flaws enabling session hijacking and three unauthenticated DoS bugs that can crash CI/CD services — and strongly urges immediate updates to avoid stealthy account compromise or disruptive outages.

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