Arbitrary File Write via Path Traversal in Google clasp leading to RCE
Priority MEDIUM 46CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.
Summary
Path Traversal in Clasp impacting versions < 3.2.0 allows a remote attacker to perform remote code execution via a malicious Google Apps Script project containing specially crafted filenames with directory traversal sequences.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00473 41st percentileScored 2026-11-07
Fix Fixed Clasp (Google): 3.2.0@google/clasp (npm): 3.2.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
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 |
|---|---|---|---|---|---|
| Clasp | before 3.2.0 | 3.2.0 | Patch available | CNA | |
| — | @google/clasp (npm) | before 3.2.0 | 3.2.0 | Patch available | GHSA-hqjg-pww4-pcgq |
- Clasp VendorGoogle Affected before 3.2.0 Fixed in 3.2.0 Patch available CNA
- @google/clasp (npm) Vendor— Affected before 3.2.0 Fixed in 3.2.0 Patch available GHSA-hqjg-pww4-pcgq
Remediation
- Fix · CNA Clasp (Google) Fixed in 3.2.0
- Fix · GHSA-hqjg-pww4-pcgq @google/clasp (npm) Fixed in 3.2.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-4092
- 2026-10-03 Alias added: GHSA-hqjg-pww4-pcgq
References
Sources
- CVE-2026-4092 · CVE Program
- CVE-2026-4092 · NVD
- FIRST EPSS
- GHSA-hqjg-pww4-pcgq · GitHub Advisory Database · CC BY 4.0
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