Vercel deepsec before 1.1.17 Arbitrary File Write via Symlink in Sandbox Tarball Extraction
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.
CVE-2026-109375
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-109375
deepsec
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/vercel-labs/deepsec",
"vendor": "Vercel",
"product": "deepsec",
"versions": [
{
"status": "affected",
"version": "0.1.0",
"lessThan": "1.1.17",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "1.1.17",
"versionType": "semver"
}
],
"packageURL": "pkg:npm/deepsec",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-109375
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #20326 · Revision 1
- Added to Heist Feed
- Publisher date