{"id":"CVE-2026-115413","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-115413","generatedAt":"2026-10-28T02:13:27.799Z","title":"Missing token audience validation in the OAuth authentication mode of AWS API MCP Server before version 1.6.0 might allow local users to run AWS operations with the server's configured AWS credentials via an access token issued to another application by…","description":"Missing token audience validation in the OAuth authentication mode of AWS API MCP Server before version 1.6.0 might allow local users to run AWS operations with the server's configured AWS credentials via an access token issued to another application by the same identity provider.\n\n\n\nTo remediate this issue, users should upgrade to version 1.6.0 and configure the expected token audience or client ID for the server.","published":"2026-10-27T19:17:11.000Z","lastModified":"2026-10-27T19:17:11.000Z","status":"Received","sourceIdentifier":"ff89ba41-3aa1-4d27-914a-91399e9639e5","cvss":{"version":"4.0","score":7.3,"severity":"HIGH","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-346"],"affected":[],"epss":null,"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unscored. Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-27T19:17:11.000Z","detail":{"score":"7.3","severity":"HIGH","publishedAt":"2026-10-27T19:17:10.593Z"},"summary":"New CVE, high severity (CVSS 7.3)."}],"references":[{"url":"https://aws.amazon.com/security/security-bulletins/2026-152-aws/","source":"ff89ba41-3aa1-4d27-914a-91399e9639e5"},{"url":"https://github.com/awslabs/mcp/security/advisories/GHSA-4prq-p2x5-w9fh","source":"ff89ba41-3aa1-4d27-914a-91399e9639e5"},{"url":"https://pypi.org/project/awslabs.aws-api-mcp-server/1.6.0/","source":"ff89ba41-3aa1-4d27-914a-91399e9639e5"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-115413","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}