CVE-2026-48050

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Source
https://cve.org/CVERecord?id=CVE-2026-48050
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48050.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-48050
Aliases
Downstream
openSUSE (1)
RHSA (2)
Related
Published
2026-08-21T22:40:12Z
Modified
2026-10-21T02:58:17Z
Severity
  • 8.8 (High) CVSS_V4 - 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 CVSS Calculator
Summary
Arc: Unauthenticated access to Go debug pprof endpoints leaks runtime state and enables CPU-burn DoS
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-200",
        "CWE-306",
        "CWE-400"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48050.json"
}
References

Affected packages

Git / github.com/basekick-labs/arc

Affected ranges

Type
GIT
Repo
https://github.com/basekick-labs/arc
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
8038f6f80f77bb48dbaa220e7415957be3988eff
Fixed
32a4091fb949f9cf060cdd804a07f6450dc426a8
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "26.06.1"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "32a4091fb949f9cf060cdd804a07f6450dc426a8"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v26.06.1",
            "range":  [
                {
                    "fixed":  "8038f6f80f77bb48dbaa220e7415957be3988eff"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

v25.*
v25.12.1
v26.*
v26.01.1
v26.01.2
v26.02.1
v26.02.2
v26.03.1
v26.03.2
v26.04.1
v26.05.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48050.json"