{"id":"CVE-2026-108600","title":"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","summary":"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 …","severity":"medium","cvss":4.7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","cwe":["CWE-59"],"vendor":"open-multi-agent","product":"open-multi-agent","affected":["open-multi-agent >= 1.5.0 <= 1.21.2"],"published":"2026-10-10","updated":"2026-10-16","sourceUpdated":"2026-10-16T19:21:14.417","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-108600","references":[{"url":"https://github.com/open-multi-agent/open-multi-agent","label":"disclosure@vulncheck.com"},{"url":"https://github.com/open-multi-agent/open-multi-agent/blob/6ec5498643c7e431aa66751f17f47a529e7f927c/packages/core/src/tool/built-in/file-write.ts#L67","label":"disclosure@vulncheck.com"},{"url":"https://github.com/open-multi-agent/open-multi-agent/blob/6ec5498643c7e431aa66751f17f47a529e7f927c/packages/core/src/tool/built-in/path-safety.ts#L104-L113","label":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@haind/open-multi-agent-file-write-dangling-symlink-escape","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/open-multi-agent-1.5.0-through-1.21.2-sandbox-escape-via-file-write-dangling-symlink","label":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@haind/open-multi-agent-file-write-dangling-symlink-escape","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.0021,"epssPercentile":0.11162,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-13T18:54:28.947812Z"},"ingestedAt":"2026-10-10T19:30:07.156Z","slug":"CVE-2026-108600","body":"## Overview\n\nopen-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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":38,"depthScoreParts":{"impact":25.9,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":221084,"id":"CVE-2026-108600","ts":1792027070528,"field":"exploit_available","old":"false","new":"true"}]}