CVE-2026-109375
Vercel deepsec from 0.1.0 before 1.1.17 contains a link following vulnerability in…
- Risk score
- 41/100
- CVSS
- 6.1 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 12 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 th…
- Affected
- See advisory
- Fix
- Upgrade the product to 1.1.17 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 6.1 medium
References
- https://github.com/vercel-labs/deepsec
- https://github.com/vercel-labs/deepsec/commit/c5a4e4220ece72aee67c2ea21f4340e65f673fc1
- https://github.com/vercel-labs/deepsec/pull/46
- https://github.com/vercel-labs/deepsec/pull/47
- https://www.vulncheck.com/advisories/vercel-deepsec-before-1.1.17-arbitrary-file-write-via-symlink-in-sandbox-tarball-extraction
Original 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.
Last activity 12 Oct 2026. Patch Forecast updates every hour.