Language ServerApplication · GitLab
CVE-2025-8279
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedInsufficient input validation within GitLab Language Server 7.6.0 and later before 7.30.0 allows arbitrary GraphQL query execution
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceGitLab Language Server versions 7.6.0 through 7.29.x contain insufficient input validation that allows authenticated or potentially unauthenticated attackers to execute arbitrary GraphQL queries, potentially exposing sensitive data or performing unauthorized actions via the GitLab API.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
Language ServerApplication
>= 7.6.0, < 7.30.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify GitLab Language Server versionRun 'gitlab-language-server --version' or check the installed package version using your package manager (npm list gitlab-language-server, gem list gitlab-language-server, pip show gitlab-language-server, etc.)Affected if Version is 7.6.0 or higher but lower than 7.30.0
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Confirm language server network exposureCheck if the language server is listening on a network port by reviewing running processes and listening ports (netstat -tlnp, ss -tlnp) or inspecting your firewall rulesAffected if The language server is bound to a network interface and accessible from other systems or untrusted networks
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Verify GraphQL functionality is activeReview the language server configuration files or startup logs to confirm GraphQL query handling is enabledAffected if GraphQL endpoint is enabled and processing queries
Environment is affected if GitLab Language Server version is 7.6.0 through 7.29.x and the server is network-accessible with GraphQL enabled.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped7.30.0
Upgrade GitLab Language Server to version 7.30.0 or later to obtain the input validation fix; if immediate upgrade is not possible, restrict network access to the Language Server endpoint and review API token permissions.
7.30.0 or later
- Identify the current version of GitLab Language Server in use
- Update GitLab Language Server to version 7.30.0 or later
- Verify the update was successful by checking the installed version
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Language Server
Scoped from the published advisory
- Consultation2.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,512.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-8279 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-8279 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data