CVE-2026-4092
Arbitrary File Write via Path Traversal in Google clasp leading to RCE
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Arbitrary File Write via Path Traversal in Google clasp leading to RCE
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.
- Record
CVE-2026-4092- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Weakness
- CWE-22
- Updated
- 2026-11-02
EUVDEUVD-2026-12047
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.
- Record
EUVD-2026-12047- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-hqjg-pww4-pcgq
@google/clasp vulnerable to unsafe path traversal cloning or pulling a malicious script
Impact
Allows an attacker to perform a "Path Traversal" attack to modify files outside the projects directory, potentially allowing for running attacker code on the developer's machine.
Patches
Fixed in version 3.2.0
Workarounds
- Only clone or pull scripts from trusted sources
- Review the output of the
pullandclonecommands to verify only expected project files are modified
- Record
GHSA-hqjg-pww4-pcgq- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Weakness
- CWE-22
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-4092- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-22
- Updated
- 2026-11-02
OSV
Arbitrary File Write via Path Traversal in Google clasp leading to RCE
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.
- Record
CVE-2026-4092- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Weakness
- CWE-22
- Updated
- 2026-11-02
OSVGHSA-hqjg-pww4-pcgq
@google/clasp vulnerable to unsafe path traversal cloning or pulling a malicious script
Impact
Allows an attacker to perform a "Path Traversal" attack to modify files outside the projects directory, potentially allowing for running attacker code on the developer's machine.
Patches
Fixed in version 3.2.0
Workarounds
- Only clone or pull scripts from trusted sources
- Review the output of the
pullandclonecommands to verify only expected project files are modified
- Record
GHSA-hqjg-pww4-pcgq- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Weakness
- CWE-22
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
@google/claspnpm |
before 3.2.0 | 3.2.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-4092 is a high vulnerability (CVSS 8.7) in Google Clasp, published March 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.52%, the 44th percentile. Fixed in @google/clasp 3.2.0.
References
github.com/google/clasp/pull/1109
nvd.nist.gov/vuln/detail/CVE-2026-4092