lowCVSS 5.3Vulnerability

CVE-2026-5323

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."

Properties

summary
a11y-mcp: Server-Side Request Forgery (SSRF) vulnerability in A11yServer function
severity
low
epss_score
0.0013
cvss_score
5.3
ghsa_published
2026-04-02T09:30:24Z
source_url
https://github.com/advisories/GHSA-prmx-7v35-7q82
ghsa_updated
2026-04-04T05:35:53Z
ghsa_id
GHSA-prmx-7v35-7q82
cve_id
CVE-2026-5323
cvss_vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
is_ghsa_only
false
epss_percentile
0.03069

Related Entities (4)

ENRICHED_BY (1)

[Source]FIRST EPSS

HAS_WEAKNESS (1)

[Weakness]Server-Side Request Forgery (SSRF)

REPORTED_BY (1)

[Source]GitHub Advisory Database

AFFECTS (1)

[Software]npm/a11y-mcp

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