This report was translated by AI; nobody has reviewed the translation yet. Original language: Czech.

[TLP:CLEAR] GitLab CE/EE fixes 4 vulnerabilities

GitLab fixes 4 vulnerabilities in GitLab Community Edition (CE) and Enterprise Edition (EE) with versions 18.3.1, 18.2.5 and 18.1.5.

GitLab CE/EE - DoS (CVE-2025-3601)
CVSS 6.5 (Medium)

Due to insufficient limiting of response size when processing specified URLs, an authenticated remote attacker can carry out a DoS attack [1].

The vulnerability is present in products:

  • GitLab Community Edition; >=8.15, <18.1.5; >=18.2, <18.2.5; >=18.3, <18.3.1
  • GitLab Enterprise Edition; >=8.15, <18.1.5; >=18.2, <18.2.5; >=18.3, <18.3.1

CVSS: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

More information:

The vulnerability was publicly disclosed 27. 8. 2025.

GitLab CE/EE - sensitive information access (CVE-2025-2246)
CVSS 5.8 (Medium)

Due to an insufficient permission check in the GraphQL API, an unauthenticated remote attacker can gain unauthorized access to sensitive manual CI/CD variables [1].

The vulnerability is present in products:

  • GitLab Community Edition; >=14.1, <18.1.5; >=18.2, <18.2.5; >=18.3, <18.3.1
  • GitLab Enterprise Edition; >=14.1, <18.1.5; >=18.2, <18.2.5; >=18.3, <18.3.1

CVSS: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

More information:

The vulnerability was publicly disclosed 27. 8. 2025.

GitLab CE/EE - DoS (CVE-2025-4225)
CVSS 5.3 (Medium)

By sending specially crafted GraphQL requests, an unauthenticated remote attacker can carry out a DoS attack [1].

The vulnerability is present in products:

  • GitLab Community Edition; >=14.1, <18.1.5; >=18.2, <18.2.5; >=18.3, <18.3.1
  • GitLab Enterprise Edition; >=14.1, <18.1.5; >=18.2, <18.2.5; >=18.3, <18.3.1

CVSS: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

More information:

The vulnerability was publicly disclosed 27. 8. 2025.

GitLab CE/EE - code injection (CVE-2025-5101)
CVSS 5.0 (Medium)

By abusing the ambiguity between branches and tags during repository import, an authenticated local attacker can distribute malicious code [1].

The vulnerability is present in products:

  • GitLab Community Edition; >18.1.5; >=18.2, <18.2.5; >=18.3, <18.3.1
  • GitLab Enterprise Edition; >18.1.5; >=18.2, <18.2.5; >=18.3, <18.3.1

CVSS: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:N

More information:

The vulnerability was publicly disclosed 27. 8. 2025.


By CESNET, z.s.p.o. Michaela Jarošová on 1. 9. 2025.

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