Unauthenticated data exposure via public pprof listener
Published Jul 30, 2026 · Updated Jul 30, 2026
Information exposure in Tigera Calico, Calico Enterprise, and Calico Cloud allows remote attackers to retrieve process diagnostics. When the disabled-by-default shared debug server is enabled, kube-controllers and Goldmane bind the unauthenticated Go pprof listener to 0.0.0.0 rather than loopback. A pod with network reachability can read heap data, goroutine stacks with function arguments, and command-line arguments; exposure depends on in-memory contents.
Summary
What happened
Information exposure in Tigera Calico, Calico Enterprise, and Calico Cloud allows remote attackers to retrieve process diagnostics. When the disabled-by-default shared debug server is enabled, kube-controllers and Goldmane bind the unauthenticated Go pprof listener to 0.0.0.0 rather than loopback. A pod with network reachability can read heap data, goroutine stacks with function arguments, and command-line arguments; exposure depends on in-memory contents.
The record
- CVE
- CVE-2026-41186
- Published
- Jul 30, 2026
- Updated
- Jul 30, 2026
- Vendor
- Tigera
- Product
- Calico
- Classifications
- CWE-200, CWE-489, T1005
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 30, 2026CVE publishedPublication date reported by the CVE source.
- Jul 30, 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.
- Affected versionversion=0 <3.31.6
- Affected versionversion=3.32.0 <3.32.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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