CVE-2026-27878
- Source
- https://cve.org/CVERecord?id=CVE-2026-27878
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27878.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-27878
- Published
- 2026-06-19T19:02:27.028Z
- Modified
- 2026-07-11T03:53:39.368375496Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- Tempo TraceQL query with exemplar hint could result in unbounded memory usage
- Details
-
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. This could allow an authenticated user to trigger a denial of service against the Tempo service.
- Database specific
{ "unresolved_ranges": [ { "source": "AFFECTED_FIELD", "extracted_events": [ { "introduced": "2.6.1" }, { "fixed": "2.8.8" }, { "introduced": "2.6.0" }, { "fixed": "2.10.2" } ] } ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27878.json", "cna_assigner": "GRAFANA" }- References
Affected packages
Git / github.com/grafana/tempo
Affected ranges
- Type
- GIT
- Repo
- https://github.com/grafana/tempo
- Events
- Database specific
{ "source": "CPE_RANGE", "cpe": "cpe:2.3:a:grafana:tempo:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "2.6.0" }, { "fixed": "2.8.4" }, { "introduced": "2.9.0" }, { "fixed": "2.9.2" }, { "introduced": "2.10.0" }, { "fixed": "2.10.2" } ] }