vlt before 1.0.0-rc.10 mishandles path sanitization for tar, leading to path traversal during extraction.
Priority MEDIUM 60CWE-23Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
vlt before 1.0.0-rc.10 mishandles path sanitization for tar, leading to path traversal during extraction.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00195 9th percentileScored 2026-11-07
Fix Fixed vlt (vlt): 1.0.0-rc.10@vltpkg/tar (npm): 1.0.0-rc.10
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| vlt | vlt | before 1.0.0-rc.10 | 1.0.0-rc.10 | Patch available | CNA |
| — | @vltpkg/tar (npm) | before 1.0.0-rc.10 | 1.0.0-rc.10 | Patch available | GHSA-gf2c-jwcj-x929 |
- vlt Vendorvlt Affected before 1.0.0-rc.10 Fixed in 1.0.0-rc.10 Patch available CNA
- @vltpkg/tar (npm) Vendor— Affected before 1.0.0-rc.10 Fixed in 1.0.0-rc.10 Patch available GHSA-gf2c-jwcj-x929
Remediation
- Fix · CNA vlt (vlt) Fixed in 1.0.0-rc.10
- Fix · GHSA-gf2c-jwcj-x929 @vltpkg/tar (npm) Fixed in 1.0.0-rc.10 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-24909
- 2026-10-03 Alias added: GHSA-gf2c-jwcj-x929
References
Other 6
- https://www.scworld.com/news/six-javascript-zero-day-bugs-lead-to-fears-of-supply-chain-attack
- https://github.com/vltpkg/vltpkg/releases/tag/v1.0.0-rc.10
- https://github.com/vltpkg/vltpkg/pull/1334
- https://www.koi.ai/blog/packagegate-6-zero-days-in-js-package-managers-but-npm-wont-act
- https://github.com/vltpkg/vltpkg/commit/ff8d4099a1929772cea2adf131285e90ede6b0dd
- https://github.com/vltpkg/vltpkg
Sources
- CVE-2026-24909 · CVE Program
- CVE-2026-24909 · NVD
- FIRST EPSS
- GHSA-gf2c-jwcj-x929 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences