Arbitrary Code Injection Affecting uptime-kuma-2.5 package, versions <2.5.4-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-MINIMOSLATEST-UPTIMEKUMA25-19688590
- published12 Sept 2026
- disclosed21 Aug 2026
Introduced: 21 Aug 2026
CVE-2026-77414 (opens in a new tab)How to fix?
Upgrade Minimos:latest uptime-kuma-2.5 to version 2.5.4-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream uptime-kuma-2.5 package and not the uptime-kuma-2.5 package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
JSONata is a JSON query and transformation language. Prior to 1.8.8 and 2.2.1, the src/jsonata.js environment.lookup function used a bypassable hasOwnProperty check. Crafted expressions could use $hasOwnProperty, $spread, $string, prototype access, and $constructor to reach the object prototype and invoke process.getBuiltinModule with child_process, executing arbitrary code with the privileges of the host process. This issue is fixed in versions 1.8.8 and 2.2.1.
References
- https://www.cve.org/CVERecord?id=CVE-2026-77414
- https://github.com/advisories/GHSA-2943-5xfg-gq5f
- https://osv.dev/vulnerability/MINI-3q88-gmw8-6g3f
- https://osv.dev/vulnerability/CVE-2026-77414
- https://github.com/jsonata-js/jsonata/commit/59e25144fc3b7125f6befd71b8a6e14e1fa610d2
- https://github.com/jsonata-js/jsonata/pull/799
- https://github.com/jsonata-js/jsonata/releases/tag/v1.8.8
- https://github.com/jsonata-js/jsonata/releases/tag/v2.2.1
- https://github.com/jsonata-js/jsonata/security/advisories/GHSA-2943-5xfg-gq5f