{"id":"CVE-2026-109375","published":"2026-10-12T21:17:10.293","lastModified":"2026-10-16T19:18:44.867","description":"Vercel deepsec from 0.1.0 before 1.1.17 contains a link following vulnerability in extractTarballLocally that allows sandboxed code to write files outside the sandbox by planting links in result tarballs. Attackers controlling sandbox code, such as a prompt-injected coding agent, can plant symbolic or hard links in the host data directory to write arbitrary files on the orchestrator host.","cvssScore":6.1,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N","cwes":["CWE-59"],"vendors":[],"products":[],"references":[{"url":"https://github.com/vercel-labs/deepsec","tags":[]},{"url":"https://github.com/vercel-labs/deepsec/commit/c5a4e4220ece72aee67c2ea21f4340e65f673fc1","tags":[]},{"url":"https://github.com/vercel-labs/deepsec/pull/46","tags":[]},{"url":"https://github.com/vercel-labs/deepsec/pull/47","tags":[]},{"url":"https://www.vulncheck.com/advisories/vercel-deepsec-before-1.1.17-arbitrary-file-write-via-symlink-in-sandbox-tarball-extraction","tags":[]}],"exploitRefs":[{"url":"https://github.com/vercel-labs/deepsec","tags":[]},{"url":"https://github.com/vercel-labs/deepsec/commit/c5a4e4220ece72aee67c2ea21f4340e65f673fc1","tags":[]},{"url":"https://github.com/vercel-labs/deepsec/pull/46","tags":[]},{"url":"https://github.com/vercel-labs/deepsec/pull/47","tags":[]}],"hasPoc":true,"ai":null}