CVE-2026-5323

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

MEDIUM
5.3
CVSS Score
Published: April 2, 2026 at 06:15 AM UTC
Updated: October 26, 2026 at 10:10 PM UTC
1 product affected across 1 vendorA11Y Mcp

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.1%
SSVC
PoC

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vendor states this is fixed in 1.0.6 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/354655
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/354655/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/780752
ExploitIssue Tracking
Source: cverecord
https://github.com/wing3e/public_exp/issues/17

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-918

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