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

Source: https://junglewise.ai/threats/technologies/github-com-grafana-tempo  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/github-com-grafana-tempo.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in github.com/grafana/tempo (Go): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-27878, was published on 19 June 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 3 (0 critical, 0 exploited in the wild)

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

A Go module for Grafana Tempo, an open source, high-volume, distributed tracing backend.

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

- [CVE-2026-27878: Grafana Tempo denial of service via TraceQL memory exhaustion](https://junglewise.ai/threats/cve-2026-27878-grafana-tempo-denial-of-service-via-traceql-memory-exhaustion) (medium, CVSS 6.5, published 19 Jun 2026)
- [CVE-2026-21728: Grafana Tempo denial of service via large query limits](https://junglewise.ai/threats/cve-2026-21728-grafana-tempo-denial-of-service-via-large-query-limits) (high, CVSS 7.5, published 24 Apr 2026)
- [CVE-2026-28377: Grafana Tempo plaintext S3 encryption key exposure in config endpoint](https://junglewise.ai/threats/cve-2026-28377-grafana-tempo-plaintext-s3-encryption-key-exposure-in-config) (high, CVSS 7.5, published 27 Mar 2026)

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

- [CVE-2026-21728: Grafana Tempo denial of service via large query limits](https://junglewise.ai/threats/cve-2026-21728-grafana-tempo-denial-of-service-via-large-query-limits) (high, CVSS 7.5, published 24 Apr 2026)
- [CVE-2026-28377: Grafana Tempo plaintext S3 encryption key exposure in config endpoint](https://junglewise.ai/threats/cve-2026-28377-grafana-tempo-plaintext-s3-encryption-key-exposure-in-config) (high, CVSS 7.5, published 27 Mar 2026)
- [CVE-2026-27878: Grafana Tempo denial of service via TraceQL memory exhaustion](https://junglewise.ai/threats/cve-2026-27878-grafana-tempo-denial-of-service-via-traceql-memory-exhaustion) (medium, CVSS 6.5, published 19 Jun 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Go technologies

- [github.com/mattermost/mattermost-server (Go)](https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server): 297 vulnerabilities
- [github.com/mattermost/mattermost-server/v6 (Go)](https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v6): 222 vulnerabilities
- [github.com/mattermost/mattermost/server/v8 (Go)](https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v8): 207 vulnerabilities
- [github.com/mattermost/mattermost-server/v5 (Go)](https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v5): 199 vulnerabilities
- [stdlib (Go)](https://junglewise.ai/threats/technologies/go-stdlib): 178 vulnerabilities
- [github.com/siyuan-note/siyuan/kernel (Go)](https://junglewise.ai/threats/technologies/github-com-siyuan-note-siyuan-kernel): 160 vulnerabilities
- [code.gitea.io/gitea (Go)](https://junglewise.ai/threats/technologies/code-gitea-io-gitea): 126 vulnerabilities
- [code.vikunja.io/api (Go)](https://junglewise.ai/threats/technologies/code-vikunja-io-api): 91 vulnerabilities
- [gogs.io/gogs (Go)](https://junglewise.ai/threats/technologies/gogs-io-gogs): 81 vulnerabilities
- [github.com/traefik/traefik/v2 (Go)](https://junglewise.ai/threats/technologies/github-com-traefik-traefik-v2): 78 vulnerabilities
- [github.com/traefik/traefik (Go)](https://junglewise.ai/threats/technologies/github-com-traefik-traefik): 75 vulnerabilities
- [github.com/usememos/memos (Go)](https://junglewise.ai/threats/technologies/github-com-usememos-memos): 75 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "github.com/grafana/tempo (Go) vulnerabilities", https://junglewise.ai/threats/technologies/github-com-grafana-tempo, 13 November 2026.