High severity · published Feb 25, 2026
CVE-2026-27728
OneUptime: OS Command Injection in Probe NetworkPathMonitor via unsanitized destination in traceroute exec()
8.8
CVSS
2%
EPSS
No
On KEV
Description
OneUptime is a solution for monitoring and managing online services. Prior to version 10.0.7, an OS command injection vulnerability in `NetworkPathMonitor.performTraceroute()` allows any authenticated project user to execute arbitrary operating system commands on the Probe server by injecting shell metacharacters into a monitor's destination field. Version 10.0.7 fixes the vulnerability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.0% · higher than 80% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ON
oneuptime · OneUptime
< 10.0.7 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-27728
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-27728
Patch
https://github.com/OneUptime/oneuptime/commit/f2cce35a04fac756cecc7a4c55e23758b99288c1
Exploit
https://github.com/OneUptime/oneuptime/security/advisories/GHSA-jmhp-5558-qxh5
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