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TI-2026-36003 Aliases CVE-2026-48723

OS command injection in browserstack-cypress-cli

Priority HIGH 69CWE-78Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

The browserstack-cypress-cli is BrowserStack's CLI which allows users to run Cypress tests on BrowserStack. Versions prior to 1.36.4 are vulnerable to OS command injection via the cypress_config_file configuration parameter. In readCypressConfigUtil.js, the loadJsFile() function constructs a shell command by interpolating the user-controlled cypress_config_filepath value into a template literal, then executes it via child_process.execSync(). Shell metacharacters in the config path (specifically " and ;) allow breaking out of the quoted argument and injecting arbitrary commands. This issue has been fixed in version 1.36.6.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00533 45th percentileScored 2026-11-07
Fix Fixed browserstack-cypress-cli (browserstack): 1.36.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
browserstackbrowserstack-cypress-clibefore 1.36.61.36.6Patch availableCNA
  • browserstack-cypress-cli Vendorbrowserstack Affected before 1.36.6 Fixed in 1.36.6 Patch available CNA

Remediation

  • Fix · CNA browserstack-cypress-cli (browserstack) Fixed in 1.36.6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-48723
  2. 2026-10-25 EPSS moved to the below the 50th percentile

References

Other 2

  • TI-2026-36356 BrowserStack Runner 0.9.5 Unauthenticated RCE via /_log HTTP Handler CVSS 4.0HIGH 8.7
  • TI-2026-36357 BrowserStack Runner 0.9.5 Path Traversal via _default HTTP Handler CVSS 4.0HIGH 7.1
  • TI-2025-35496 The Node.js package browserstack-local 1.5.8 contains a command injection vulnerability. CVSS 3.1HIGH 7.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences