CVE-2026-44895Public exploitNetwork attack vector

Unauthenticated repository control via exposed SSE transport

Published May 26, 2026 · Updated May 26, 2026

Missing authentication in Yoda Digital GitLab MCP Server before 0.6.0 allows remote attackers to execute GitLab API operations. When USE_SSE=true, src/transport.ts accepts GET /sse and POST /messages without credentials, applies wildcard CORS, and binds the server to all interfaces. Any network caller, or any website visited while the server runs, can read private repository data or modify and delete GitLab resources through the operator's personal access token.

CVSS severity9.2
Critical
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Yoda Digital GitLab MCP Server before 0.6.0 allows remote attackers to execute GitLab API operations. When USE_SSE=true, src/transport.ts accepts GET /sse and POST /messages without credentials, applies wildcard CORS, and binds the server to all interfaces. Any network caller, or any website visited while the server runs, can read private repository data or modify and delete GitLab resources through the operator's personal access token.

The record

CVE
CVE-2026-44895
Published
May 26, 2026
Updated
May 26, 2026
Vendor
Yoda Digital
Product
GitLab MCP Server
Classifications
CWE-306, CWE-942, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 26, 2026CVE publishedPublication date reported by the CVE source.
  2. May 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.6.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Yoda Digital · GitLab MCP Serverversion=< 0.6.0

Published CVSS scores

9.2GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CWE-942Permissive Cross-domain Policy with Untrusted Domains
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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