Description
Arc is an open, SQL-native time-series database for telemetry. Versions prior to 26.06.1 register Go's `net/http/pprof` handlers at `/debug/pprof/*` via `app.Use(pprof.New())` in `internal/api/server.go`, and `/debug/pprof` is added to `PublicPrefixes` in `cmd/arc/main.go`. The auth middleware short-circuits before the token check on prefix match, so the endpoints are reachable without any authentication. Version 26.06.1 contains a patch. Some workarounds are available. Block `/debug/pprof*` at a reverse proxy / load balancer in front of Arc, restrict Arc's API port to known-trusted networks via firewall rules, and/or patch the running build: comment out `app.Use(pprof.New())` in `internal/api/server.go` and rebuild.
Published: 2026-08-21
Score: 8.8 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-j93g-rp6m-j32m Arc: Unauthenticated access to Go debug pprof endpoints leaks runtime state and enables CPU-burn DoS
History

Fri, 21 Aug 2026 23:00:00 +0000

Type Values Removed Values Added
Description Arc is an open, SQL-native time-series database for telemetry. Versions prior to 26.06.1 register Go's `net/http/pprof` handlers at `/debug/pprof/*` via `app.Use(pprof.New())` in `internal/api/server.go`, and `/debug/pprof` is added to `PublicPrefixes` in `cmd/arc/main.go`. The auth middleware short-circuits before the token check on prefix match, so the endpoints are reachable without any authentication. Version 26.06.1 contains a patch. Some workarounds are available. Block `/debug/pprof*` at a reverse proxy / load balancer in front of Arc, restrict Arc's API port to known-trusted networks via firewall rules, and/or patch the running build: comment out `app.Use(pprof.New())` in `internal/api/server.go` and rebuild.
Title Arc: Unauthenticated access to Go debug pprof endpoints leaks runtime state and enables CPU-burn DoS
Weaknesses CWE-200
CWE-306
CWE-400
References
Metrics cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-21T22:40:12.771Z

Reserved: 2026-05-20T18:15:53.578Z

Link: CVE-2026-48050

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-21T23:16:25.070

Modified: 2026-08-21T23:16:25.070

Link: CVE-2026-48050

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-22T00:30:16Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor

  • CWE-306

    Missing Authentication for Critical Function

  • CWE-400

    Uncontrolled Resource Consumption