๐Ÿ” CVE Alert

CVE-2026-5323

MEDIUM 5.3

priyankark a11y-mcp index.js A11yServer server-side request forgery

CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
2th

A vulnerability was found in priyankark a11y-mcp up to 1.0.5. This vulnerability affects the function A11yServer of the file src/index.js. The manipulation results in server-side request forgery. The attack must be initiated from a local position. The exploit has been made public and could be used. This product operates on a rolling release basis, ensuring continuous delivery. Consequently, there are no version details for either affected or updated releases. Upgrading to version 1.0.6 is able to resolve this issue. The patch is identified as e3e11c9e8482bd06b82fd9fced67be4856f0dffc. It is recommended to upgrade the affected component. The vendor acknowledged the issue but provides additional context for the CVSS rating: "a11y-mcp is a local stdio MCP server - it has no HTTP endpoint and is not network-accessible. The caller is always the local user or an LLM acting on their behalf with user approval."

CWE CWE-918
Vendor priyankark
Product a11y-mcp
Published Apr 2, 2026
Last Updated Apr 3, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

priyankark / a11y-mcp
1.0.0 1.0.1 1.0.2 1.0.3 1.0.4 1.0.5

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
vuldb.com: https://vuldb.com/vuln/354655 vuldb.com: https://vuldb.com/vuln/354655/cti vuldb.com: https://vuldb.com/submit/780752 github.com: https://github.com/wing3e/public_exp/issues/17 github.com: https://github.com/priyankark/a11y-mcp/commit/e3e11c9e8482bd06b82fd9fced67be4856f0dffc github.com: https://github.com/priyankark/a11y-mcp/

Credits

๐Ÿ” BigW (VulDB User)