{"schema":"threatline.record/2","record":{"id":"CVE-2026-108600","aliases":[],"summary":"open-multi-agent 1.5.0 through 1.21.2 Sandbox Escape via file_write Dangling Symlink","details":"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.","categories":["Unclassified"],"product":"open-multi-agent","vendor":"open-multi-agent","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-108600","source_modified_at":"2026-10-13T18:54:52.634Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"open-multi-agent","vendor":"open-multi-agent","versions":[{"version":"1.5.0","lessThanOrEqual":"1.21.2","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":5.7,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00148,"percentile":0.03677,"score_date":"2026-10-23"},"published_at":"2026-10-10T18:58:16.432Z","modified_at":"2026-10-13T18:54:52.634Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-108600","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-13T18:54:52.634Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-108600","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://hackmd.io/@haind/open-multi-agent-file-write-dangling-symlink-escape","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/open-multi-agent/open-multi-agent/blob/6ec5498643c7e431aa66751f17f47a529e7f927c/packages/core/src/tool/built-in/path-safety.ts#L104-L113","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/open-multi-agent/open-multi-agent/blob/6ec5498643c7e431aa66751f17f47a529e7f927c/packages/core/src/tool/built-in/file-write.ts#L67","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/open-multi-agent/open-multi-agent","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/open-multi-agent-1.5.0-through-1.21.2-sandbox-escape-via-file-write-dangling-symlink","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-13T18:54:28.947812Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-13T18:54:52.634Z","content_hash":"0d50fe93d774837bd805768ea9f29767ad7db26973a04cefff7c010dfe0e805f"}}