CVE-2026-41186

Unauthenticated Go pprof exposure in Calico debug server

State
Published
Severity
6.0 Medium
Published
Jul 30, 2026
Updated
Jul 30, 2026
Reserved
Apr 17, 2026

Read the record on cve.org

Description

When Calico's shared debug server is enabled (disabled by default), the Calico kube-controllers and Goldmane components bind their Go pprof debug listener to 0.0.0.0 without authentication. Any pod with network reachability to the listener can retrieve the process heap, goroutine stacks (including function arguments), and command-line arguments. Depending on the process's in-memory state, the heap may contain sensitive material. The debug listener is opt-in but is unsafe when enabled because it offers no authentication and no safe localhost-only binding option.

Scores

CVSSScoreVectorSource
4.06.0 MediumCVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:LTigera

Weaknesses

  • CWE-489 Active Debug Code
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected Products

ProductVersions
CalicoTigera
  • before 3.31.6Affected
  • 3.32.0 to before 3.32.1Affected
Calico EnterpriseTigera
  • before 3.21.7Affected
  • 3.22.0 to before 3.22.4Affected
Calico CloudTigera
  • before 22.4.0Affected

References

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