CVE-2026-48050Network attack vector

Runtime disclosure and CPU exhaustion via exposed pprof

Published Aug 21, 2026 · Updated Aug 25, 2026

Missing authentication in Basekick Labs Arc before 26.06.1 allows remote attackers to read runtime data and exhaust CPU via pprof endpoints. The public Fiber app registers net/http/pprof handlers under /debug/pprof while the allowlisted path causes middleware to bypass its token check. Any network-reachable caller can retrieve heap and goroutine data or request long profiling runs that pin a CPU core and interrupt service.

CVSS severity8.8
High
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Basekick Labs Arc before 26.06.1 allows remote attackers to read runtime data and exhaust CPU via pprof endpoints. The public Fiber app registers net/http/pprof handlers under /debug/pprof while the allowlisted path causes middleware to bypass its token check. Any network-reachable caller can retrieve heap and goroutine data or request long profiling runs that pin a CPU core and interrupt service.

The record

CVE
CVE-2026-48050
Published
Aug 21, 2026
Updated
Aug 25, 2026
Vendor
Basekick Labs
Product
Arc
Classifications
CWE-306, CWE-400, CWE-200, T1190, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 26.06.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Basekick Labs · Arcversion=< 26.06.1

Published CVSS scores

8.8GitHubCVSS: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 describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CWE-400Uncontrolled Resource Consumption
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1190Exploit Public-Facing Application
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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