# github.com/grafana/tempo (Go) vulnerabilities

3 known vulnerabilities (2 high, 1 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Registry: https://pkg.go.dev/github.com/grafana/tempo

## Advisories (3)

### [CVE-2026-27878](https://cve.now/CVE-2026-27878): Tempo TraceQL query with exemplar hint could result in unbounded memory usage

- Severity: Medium 6.5
- Published: Jun 19, 2026
- Affected: fixed in 1.5.1-0.20260303204923-b13f74291d48.

### [CVE-2026-21728](https://cve.now/CVE-2026-21728): Tempo query limit results in unbounded memory allocation

- Severity: High 7.5
- Published: Apr 24, 2026
- Affected: from 1.3.0; from 1.3.0, fixed in 2.8.4; from 2.9.0, fixed in 2.9.2; from 2.10.0, fixed in 2.10.2.

### [CVE-2026-28377](https://cve.now/CVE-2026-28377): S3 SSE-C Encryption Key Exposed in Plaintext via Config Endpoint (CVE-2025-41118 Pattern)

- Severity: High 7.5
- Published: Mar 26, 2026
- Affected: all versions; fixed in 2.10.3.

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