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VulnerabilityPublished Updated

CVE-2026-4092: Google Clasp · Path Traversal

Affects Google ClaspSource CVE Database V5

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Not known to be exploited · CVSS 8.7 High : upgrade to 3.2.0 soon.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 4.0 base score
8.7High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.2.0
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade Google Clasp to 3.2.0.

Affected software

ProductAffectedFixed in
GoogleClaspAffected
  • <3.2.0
Fixed in
  • 3.2.0

AI-suggested

To mitigate CVE-2026-4092, organizations should immediately upgrade Google Clasp to version 3.2.0 or later once available. Until patched, restrict access to Clasp and related development environments to trusted users and networks only. Implement rigorous input validation and sanitization for all filenames and project files to prevent directory traversal sequences. Employ file system access controls and sandboxing to limit the impact of any unauthorized file operations. Monitor logs and audit trails for unusual file path manipulations or unexpected project uploads. Educate developers about the risks of opening untrusted Apps Script projects and encourage the use of secure coding practices. Consider deploying endpoint protection solutions that can detect suspicious file system activities. Additionally, review and harden deployment pipelines to prevent malicious script injection. Coordinate with Google Workspace administrators to enforce security policies and monitor for anomalous behavior related to Apps Script projects. Finally, maintain an incident response plan tailored to development environment compromises.

Description

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.

References

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