CVE-2026-27728Public exploitNetwork attack vector

Authenticated command execution via unsanitized traceroute destination

Published Feb 25, 2026 · Updated Feb 25, 2026

OS command injection in OneUptime before 10.0.7 allows remote authenticated users to execute commands on Probe servers. NetworkPathMonitor.performTraceroute() interpolates the monitor destination into a traceroute command string and passes it to child_process.exec(), allowing shell metacharacters to alter the command. The user must be able to create or edit a network path monitor, and the published advisory states that the class had no callers and was not yet wired into the execution pipeline.

CVSS severity9.9
Critical
EPSS probability1.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in OneUptime before 10.0.7 allows remote authenticated users to execute commands on Probe servers. NetworkPathMonitor.performTraceroute() interpolates the monitor destination into a traceroute command string and passes it to child_process.exec(), allowing shell metacharacters to alter the command. The user must be able to create or edit a network path monitor, and the published advisory states that the class had no callers and was not yet wired into the execution pipeline.

The record

CVE
CVE-2026-27728
Published
Feb 25, 2026
Updated
Feb 25, 2026
Vendor
OneUptime
Product
OneUptime
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 10.0.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OneUptime · OneUptimeversion=< 10.0.7

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.9GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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