{"id":"CVE-2026-108600","published":"2026-10-10T19:16:58.640","lastModified":"2026-10-16T19:21:14.417","description":"open-multi-agent (@open-multi-agent/core) 1.5.0 through 1.21.2 contains a link following vulnerability in the file_write tool sandbox that allows attackers to create files outside the workspace root by using dangling symlinks. Attackers can plant a dangling symlink in the workspace and steer the agent via prompt injection to write attacker-influenced content anywhere the agent process can write.","cvssScore":4.7,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","cwes":["CWE-59"],"vendors":[],"products":[],"references":[{"url":"https://github.com/open-multi-agent/open-multi-agent","tags":[]},{"url":"https://github.com/open-multi-agent/open-multi-agent/blob/6ec5498643c7e431aa66751f17f47a529e7f927c/packages/core/src/tool/built-in/file-write.ts#L67","tags":[]},{"url":"https://github.com/open-multi-agent/open-multi-agent/blob/6ec5498643c7e431aa66751f17f47a529e7f927c/packages/core/src/tool/built-in/path-safety.ts#L104-L113","tags":[]},{"url":"https://hackmd.io/@haind/open-multi-agent-file-write-dangling-symlink-escape","tags":[]},{"url":"https://www.vulncheck.com/advisories/open-multi-agent-1.5.0-through-1.21.2-sandbox-escape-via-file-write-dangling-symlink","tags":[]},{"url":"https://hackmd.io/@haind/open-multi-agent-file-write-dangling-symlink-escape","tags":[]}],"exploitRefs":[{"url":"https://github.com/open-multi-agent/open-multi-agent","tags":[]},{"url":"https://github.com/open-multi-agent/open-multi-agent/blob/6ec5498643c7e431aa66751f17f47a529e7f927c/packages/core/src/tool/built-in/file-write.ts#L67","tags":[]},{"url":"https://github.com/open-multi-agent/open-multi-agent/blob/6ec5498643c7e431aa66751f17f47a529e7f927c/packages/core/src/tool/built-in/path-safety.ts#L104-L113","tags":[]}],"hasPoc":true,"ai":null}