CVE-2026-5323
a11y-mcp: Server-Side Request Forgery (SSRF) vulnerability in A11yServer function
Impact
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."
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | a11y-mcp | < 1.0.5 | 1.0.5 |
Affected products
| Product | Affected versions |
|---|---|
| Priyankark A11y-Mcp | before 1.0.5. |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/priyankark/a11y-mcp/
- https://github.com/priyankark/a11y-mcp/commit/e3e11c9e8482bd06b82fd9fced67be4856f0dffc
- https://github.com/wing3e/public_exp/issues/17
- https://vuldb.com/submit/780752
- https://vuldb.com/vuln/354655
- https://vuldb.com/vuln/354655/cti
- https://github.com/advisories/GHSA-prmx-7v35-7q82
- https://nvd.nist.gov/vuln/detail/CVE-2026-5323
- https://github.com/priyankark/a11y-mcp