Go/github.com/prometheus/prometheus CVE-2026-44903: medium 6.1, EPSS 0.20%
Prometheus vulnerable to stored XSS via crafted histogram bucket label values in the old web UI heatmap display
Action: Upgrade github.com/prometheus/prometheus to 0.311.3 or later.
go get github.com/prometheus/prometheus@v0.311.3Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 0.311.3 | - |
Fixed versions
| 0.311.3 |
Sources
- osv: GHSA-fw8g-cg8f-9j28
- https://github.com/prometheus/prometheus/security/advisories/GHSA-fw8g-cg8f-9j28
- https://nvd.nist.gov/vuln/detail/CVE-2026-44903
- https://github.com/prometheus/prometheus/commit/38f23b9075ced1de2b82d2dad8b2bebb1ecd5b7d
- https://github.com/prometheus/prometheus
CVE-2026-44903 · published · modified · JSON