CVE-2026-41186

Summary

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.

Affected Software

VendorProductVersion RangeStatus
TigeraCalico0 < 3.31.6affected
TigeraCalico3.32.0 < 3.32.1affected
TigeraCalico Enterprise0 < 3.21.7affected
TigeraCalico Enterprise3.22.0 < 3.22.4affected
TigeraCalico Cloud0 < 22.4.0affected

Weaknesses

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

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References