# CVE-2026-48050

## Summary

- **CVE ID:** CVE-2026-48050
- **Severity:** HIGH
- **CVSS Score:** 8.8 (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)
- **CWE:** CWE-200, CWE-306, CWE-400
- **Published:** Aug 21, 2026
- **Last Modified:** Aug 25, 2026

## 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.

## Affected Products

- Basekick-Labs — arc (< 26.06.1)

## References

- [CNA](https://github.com/Basekick-Labs/arc/security/advisories/GHSA-j93g-rp6m-j32m)
- [CNA](https://github.com/Basekick-Labs/arc/commit/32a4091fb949f9cf060cdd804a07f6450dc426a8)
- [CNA](https://github.com/Basekick-Labs/arc/releases/tag/v26.06.1)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.36%
- **EPSS Percentile:** 29.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-20._