How severe is CVE-2026-49396?

CVE-2026-49396 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability low.

Is CVE-2026-49396 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-49396?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-49396 have an EU (EUVD) identifier?

Yes. CVE-2026-49396 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36596.

When was CVE-2026-49396 published?

CVE-2026-49396 was published on 2026-06-12 and last updated on 2026-06-17.

CVE-2026-49396

CVE-2026-49396 is a high-severity vulnerability with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36596
Weakness: CWE-352
Published: 2026-06-12
Last modified: 2026-06-17

Description

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 1.0.0 to before version 2.0.14, cross-site GET request can trigger stored cron commands on a victim's agents. This issue has been patched in version 2.0.14.

Frequently asked questions

What is CVE-2026-49396?: Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 1.0.0 to before version 2.0.14, cross-site GET request can trigger stored cron commands on a victim's agents. This issue has been patched in version 2.0.14.
How severe is CVE-2026-49396?: CVE-2026-49396 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability low.
Is CVE-2026-49396 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-49396?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-49396 have an EU (EUVD) identifier?: Yes. CVE-2026-49396 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36596.
When was CVE-2026-49396 published?: CVE-2026-49396 was published on 2026-06-12 and last updated on 2026-06-17.

References

https://github.com/nezhahq/nezha/security/advisories/GHSA-8qhj-4f8c-j8qg

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