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CVE-2026-109375 (GCVE-0-2026-109375)

Vulnerability from nvd – Published: 2026-10-12 20:55 – Updated: 2026-10-13 15:45

Title

Vercel deepsec before 1.1.17 Arbitrary File Write via Symlink in Sandbox Tarball Extraction

Summary

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.

Severity

4.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N

6.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-13 15:44 UTC

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 6057 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/vercel-labs/deepsec/pull/46	issue-trackingpatch
https://github.com/vercel-labs/deepsec/pull/47	patchissue-tracking
https://github.com/vercel-labs/deepsec/commit/c5a…	patch
https://github.com/vercel-labs/deepsec	product
https://www.vulncheck.com/advisories/vercel-deeps…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Vercel	deepsec	Affected: 0.1.0 , < 1.1.17 (semver) Unaffected: 1.1.17 (semver)

Date Public

2026-05-05 00:00

Credits

Yunus Aydın

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2026-109375",
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CVE-2026-109375 (GCVE-0-2026-109375)

Vulnerability from cvelistv5 – Published: 2026-10-12 20:55 – Updated: 2026-10-13 15:45

Title

Vercel deepsec before 1.1.17 Arbitrary File Write via Symlink in Sandbox Tarball Extraction

Summary

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.

Severity

4.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N

6.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-13 15:44 UTC

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 6057 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/vercel-labs/deepsec/pull/46	issue-trackingpatch
https://github.com/vercel-labs/deepsec/pull/47	patchissue-tracking
https://github.com/vercel-labs/deepsec/commit/c5a…	patch
https://github.com/vercel-labs/deepsec	product
https://www.vulncheck.com/advisories/vercel-deeps…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Vercel	deepsec	Affected: 0.1.0 , < 1.1.17 (semver) Unaffected: 1.1.17 (semver)

Date Public

2026-05-05 00:00

Credits

Yunus Aydın

Show details on NVD website

JSON

To clipboard

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Find a vulnerability

Search criteria

2 vulnerabilities found for deepsec by Vercel

CVE-2026-109375 (GCVE-0-2026-109375)

CVE-2026-109375 (GCVE-0-2026-109375)