CLEANSTART-2026-HR94174
Dashboard / Vulnerabilities / CLEANSTART-2026-HR94174
Summary: TraceQL query in Grafana Tempo with a large exemplars hint value can cause the Tempo instance to allocate an excessive amount of memory, resulting in an out-of-memory crash
Details: Security vulnerability affects the grafana package. A TraceQL query in Grafana Tempo with a large exemplars hint value can cause the Tempo instance to allocate an excessive amount of memory, resulting in an out-of-memory crash.
References: https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-HR94174.json, https://osv.dev/vulnerability/CVE-2026-27878, https://nvd.nist.gov/vuln/detail/CVE-2026-27878
Affected packages
Package
Name: grafana
Purl: pkg:apk/cleanstart/grafana
Affected ranges
Type: ECOSYSTEM
Events:
