CVE-2026-41186

MEDIUM

Unauthenticated Go pprof exposure in Calico debug server

Title source: cna
STIX 2.1

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

CVSS v4 6.0
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-200 CWE-489
Status published
Products (5)
Tigera/Calico < 3.31.6
Tigera/Calico 3.32.0 - 3.32.1
Tigera/Calico Cloud < 22.4.0
Tigera/Calico Enterprise < 3.21.7
Tigera/Calico Enterprise 3.22.0 - 3.22.4
Published Jul 30, 2026
Tracked Since Jul 30, 2026