GitLab has launched pressing safety patches for its Group (CE) and Enterprise (EE) editions, addressing a number of vulnerabilities, together with two high-severity flaws that would result in Server-Aspect Request Forgery (SSRF) and Denial of Service (DoS) assaults.
The corporate is strongly advising all directors of self-managed GitLab installations to improve instantly to the newly launched variations: 18.3.2, 18.2.6, and 18.1.6.
The updates tackle a complete of six safety vulnerabilities, ranging in severity. Clients utilizing the cloud-hosted GitLab.com service are already protected, and GitLab Devoted customers don’t have to take any motion.
The fixes are a part of GitLab’s scheduled patch releases, which intention to resolve safety points and bugs promptly.
Excessive-Severity Flaws Patched
Essentially the most important vulnerabilities mounted on this launch are a high-severity SSRF flaw and a high-severity DoS situation.
The SSRF vulnerability, tracked as CVE-2025-6454, holds a CVSS rating of 8.5. It existed within the Webhook customized header characteristic and might be exploited by an authenticated consumer.
By injecting specifically crafted sequences, an attacker might pressure the GitLab occasion to make unintended inside requests inside proxy environments, probably resulting in additional compromise.
This flaw impacts all variations from 16.11 as much as the newest patched releases. The second high-severity situation, CVE-2025-2256, is a DoS vulnerability with a CVSS rating of seven.5.
An unauthenticated attacker might have exploited this flaw by sending a number of, concurrent important SAML responses to a GitLab occasion, overwhelming its assets and rendering it unresponsive to respectable customers.
This vulnerability has a large impression, affecting all variations from 7.12.
Medium-Severity Vulnerabilities Addressed
Alongside the high-severity points, GitLab patched 4 medium-severity vulnerabilities, three of which might additionally end in a denial of service.
CVE-2025-1250: A DoS flaw (CVSS 6.5) the place an authenticated consumer might stall background job processing through the use of specifically crafted commit messages or merge request descriptions.
CVE-2025-7337: A persistent DoS vulnerability (CVSS 6.5) that allowed an authenticated consumer with no less than Developer-level entry to crash a GitLab occasion by importing giant recordsdata.
CVE-2025-10094: One other DoS situation (CVSS 6.5) enabling authenticated customers to disrupt entry to token-related operations by creating tokens with excessively lengthy names.
CVE-2025-6769: An data disclosure vulnerability (CVSS 4.3) that would have allowed an authenticated consumer to view administrator-only upkeep notes by accessing runner particulars by way of particular interfaces.
GitLab has credited a number of safety researchers, yuki_osaki, ppee, pwnie, and iamgk808, for locating and reporting these vulnerabilities by way of its HackerOne bug bounty program.
In step with its disclosure coverage, the complete particulars of those vulnerabilities can be made public on GitLab’s situation tracker 30 days after the discharge.
The corporate has urged all self-managed clients to evaluation the safety announcement and apply the updates to guard their cases from potential assaults.
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