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TI-2026-23716 Aliases CVE-2026-30887GHSA-h343-gg57-2q67

OneUptime Affected by Unsandboxed Code Execution in Probe Allows Any Project Member to Achieve RCE

Priority HIGH 76CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
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 and GitHub. Impact type from CWE-94.

Summary

OneUptime is a solution for monitoring and managing online services. Prior to 10.0.18, OneUptime allows project members to run custom Playwright/JavaScript code via Synthetic Monitors to test websites. However, the system executes this untrusted user code inside the insecure Node.js vm module. By leveraging a standard prototype-chain escape (this.constructor.constructor), an attacker can bypass the sandbox, gain access to the underlying Node.js process object, and execute arbitrary system commands (RCE) on the oneuptime-probe container. Furthermore, because the probe holds database/cluster credentials in its environment variables, this directly leads to a complete cluster compromise. This vulnerability is fixed in 10.0.18.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0045 39th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed oneuptime (OneUptime): 10.0.18@oneuptime/common (npm): 10.0.18

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
OneUptimeoneuptimebefore 10.0.1810.0.18Patch availableCNA
—@oneuptime/common (npm)before 10.0.1810.0.18Patch availableGHSA-h343-gg57-2q67
  • oneuptime VendorOneUptime Affected before 10.0.18 Fixed in 10.0.18 Patch available CNA
  • @oneuptime/common (npm) Vendor— Affected before 10.0.18 Fixed in 10.0.18 Patch available GHSA-h343-gg57-2q67

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:hackerbay:oneuptime:*:*:*:*:*:*:*:*before 10.0.18VulnerableOneUptime
  • cpe:2.3:a:hackerbay:oneuptime:*:*:*:*:*:*:*:* Versions before 10.0.18 Vulnerable ·OneUptime

Remediation

  • Fix · CNA oneuptime (OneUptime) Fixed in 10.0.18
  • Fix · GHSA-h343-gg57-2q67 @oneuptime/common (npm) Fixed in 10.0.18 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-30887
  2. 2026-10-03 Alias added: GHSA-h343-gg57-2q67

References

Exploit 1

Advisory 1

Other 1

  • TI-2026-22090 OneUptime: OS Command Injection in Probe NetworkPathMonitor via unsanitized destination in traceroute exec() CVSS 3.1CRITICAL 10.0
  • TI-2026-27002 OneUptime: Missing Authentication on Notification Endpoints CVSS 3.1CRITICAL 9.1
  • TI-2026-25573 OneUptime: WhatsApp Webhook Missing Signature Verification CVSS 4.0HIGH 8.7
  • TI-2025-40534 OneUptime Unauthorized User Creation via API CVSS 4.0HIGH 8.8
  • TI-2026-25793 Protection mechanism failure in oneuptime CVSS 3.1CRITICAL 10.0
  • TI-2026-24835 OneUptime ClickHouse SQL Injection via Aggregate Query Parameters CVSS 3.1CRITICAL 10.0
See all 22 →

Sources

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