{"id":"CVE-2026-18992","aliases":["EUVD-2026-53705","GHSA-wjcq-xp37-c947"],"status":"published","title":"zhayujie CowAgent Self-Evolution Review Agent executor.py _select_tools authorization","description":"A vulnerability was detected in zhayujie CowAgent up to 2.1.1. This vulnerability affects the function _select_tools of the file agent/evolution/executor.py of the component Self-Evolution Review Agent. Performing a manipulation results in incorrect authorization. The attack is possible to be carried out remotely. The exploit is now public and may be used.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00366,"percentile":0.30637,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-285","CWE-863"],"published":"2026-08-06T03:30:10Z","modified":"2026-10-28T02:31:03Z","products":[{"vendor":"zhayujie","product":"cowagent"}],"references":[{"url":"https://vuldb.com/vuln/386368","tags":["vdb-entry","technical-description","advisory"]},{"url":"https://vuldb.com/vuln/386368/cti","tags":["signature","permissions-required","report"]},{"url":"https://vuldb.com/cve/CVE-2026-18992","tags":["third-party-advisory","advisory"]},{"url":"https://vuldb.com/submit/862609","tags":["third-party-advisory","advisory"]},{"url":"https://github.com/zhayujie/CowAgent/issues/2904","tags":["exploit","issue-tracking","report"]},{"url":"https://github.com/zhayujie/CowAgent/issues/2904#issuecomment-4756833239","tags":["issue-tracking","report"]},{"url":"https://github.com/zhayujie/CowAgent/","tags":["product","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18992","tags":["advisory"]},{"url":"https://github.com/zhayujie/CowAgent"},{"url":"https://github.com/advisories/GHSA-wjcq-xp37-c947"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18992.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-18992","title":"zhayujie CowAgent Self-Evolution Review Agent executor.py _select_tools authorization","description":"A vulnerability was detected in zhayujie CowAgent up to 2.1.1. This vulnerability affects the function _select_tools of the file agent/evolution/executor.py of the component Self-Evolution Review Agent. Performing a manipulation results in incorrect authorization. The attack is possible to be carried out remotely. The exploit is now public and may be used.","status":"published","published":"2026-08-06T03:30:10.74Z","modified":"2026-08-06T17:32:12.525Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium","assessor":"cna"},{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","level":"medium","assessor":"cna"},{"version":"3.0","score":6.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","level":"medium","assessor":"cna"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:C","assessor":"cna"}],"cwes":["CWE-863","CWE-285"],"updated_at":"2026-11-02T14:20:12.260247Z"}],"euvd":[{"id":"EUVD-2026-53705","description":"A vulnerability was detected in zhayujie CowAgent up to 2.1.1. This vulnerability affects the function _select_tools of the file agent/evolution/executor.py of the component Self-Evolution Review Agent. Performing a manipulation results in incorrect authorization. The attack is possible to be carried out remotely. The exploit is now public and may be used.","status":"published","published":"2026-08-06T03:30:10Z","modified":"2026-08-06T17:32:12Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium"}],"updated_at":"2026-11-02T18:02:07.757838Z"}],"ghsa":[{"id":"GHSA-wjcq-xp37-c947","title":"A vulnerability was detected in zhayujie CowAgent up to 2.1.1. This vulnerability affects the...","description":"A vulnerability was detected in zhayujie CowAgent up to 2.1.1. This vulnerability affects the function _select_tools of the file agent/evolution/executor.py of the component Self-Evolution Review Agent. Performing a manipulation results in incorrect authorization. The attack is possible to be carried out remotely. The exploit is now public and may be used.","status":"published","published":"2026-08-06T06:30:32Z","modified":"2026-08-06T06:31:39Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium"},{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low"}],"cwes":["CWE-285"],"updated_at":"2026-11-02T15:10:08.59251Z"}],"nvd":[{"id":"CVE-2026-18992","description":"A vulnerability was detected in zhayujie CowAgent up to 2.1.1. This vulnerability affects the function _select_tools of the file agent/evolution/executor.py of the component Self-Evolution Review Agent. Performing a manipulation results in incorrect authorization. The attack is possible to be carried out remotely. The exploit is now public and may be used.","status":"published","published":"2026-08-06T05:16:41.157Z","modified":"2026-10-23T21:10:00.157Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low","assessor":"secondary"},{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"secondary"}],"cwes":["CWE-285","CWE-863"],"updated_at":"2026-11-02T14:12:35.031043Z"}],"osv":[{"id":"CVE-2026-18992","title":"zhayujie CowAgent Self-Evolution Review Agent executor.py _select_tools authorization","description":"A vulnerability was detected in zhayujie CowAgent up to 2.1.1. This vulnerability affects the function _select_tools of the file agent/evolution/executor.py of the component Self-Evolution Review Agent. Performing a manipulation results in incorrect authorization. The attack is possible to be carried out remotely. The exploit is now public and may be used.","status":"published","published":"2026-08-06T03:30:10.74Z","modified":"2026-10-28T02:31:03.828686793Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","level":"low"}],"cwes":["CWE-285","CWE-863"],"updated_at":"2026-11-02T15:44:58.024074Z"}]}}