CVE-2026-41186

Unauthenticated Go pprof exposure in Calico debug server

HIGH
7.5
CVSS Score
Published: July 30, 2026 at 02:45 PM UTC
Updated: August 8, 2026 at 01:39 AM UTC
2 products affected across 2 vendorsCalicoCalico Enterprise

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Severity
HIGH7.5
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 22.4.0v < 22.4.0v < 3.21.7v < 3.31.63.22.0 ≤ v < 3.22.43.32.0 ≤ v < 3.32.13.32.0
Affected range stops below 22.4.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.21.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.22.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.31.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.32.1, so it looks safe — our inference, not a vendor statement
v < 3.21.73.22.0 ≤ v < 3.22.43.22.0
Affected range stops below 3.21.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.22.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (4)

PatchIssue Tracking
Source: cverecord
https://github.com/projectcalico/calico/pull/12491
PatchIssue Tracking
Source: cverecord
https://github.com/projectcalico/calico/pull/12634
PatchIssue Tracking
Source: cverecord
https://github.com/projectcalico/calico/pull/12633

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-489CWE-200

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