CVE-2026-88858

MEDIUMCVSS 6.5/10EPSS 0.34%

Last modified

CVE-2026-88858 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A user with the Viewer role in Grafana can crash the server by submitting a crafted server-side math expression (uncontrolled recursion). A user with permission to provision alert rules can make the outage persist across restarts.. EPSS estimates a 0.34% chance of exploitation in the next 30 days.

Description

A user with the Viewer role in Grafana can crash the server by submitting a crafted server-side math expression (uncontrolled recursion). A user with permission to provision alert rules can make the outage persist across restarts.

Metrics

EPSS Probability
0.34%

27.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
GrafanaGrafana OSS>= 7.4.0, <= 11.6.16; >= 12.0.0, <= 12.2.10; >= 12.3.0, <= 12.3.11; >= 12.4.0, <= 12.4.13; >= 13.0.0, <= 13.0.11; >= 13.1.0, <= 13.1.8; >= 13.2.0, <= 13.2.4
GrafanaGrafana Enterprise>= 7.4.0, <= 11.6.16; >= 12.0.0, <= 12.2.10; >= 12.3.0, <= 12.3.11; >= 12.4.0, <= 12.4.13; >= 13.0.0, <= 13.0.11; >= 13.1.0, <= 13.1.8; >= 13.2.0, <= 13.2.4

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-88858?
A user with the Viewer role in Grafana can crash the server by submitting a crafted server-side math expression (uncontrolled recursion). A user with permission to provision alert rules can make the outage persist across restarts.
How severe is CVE-2026-88858?
CVE-2026-88858 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.
How do I fix CVE-2026-88858?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST