CVE-2026-3206Network attack vector

Service degradation via cascading context cancellations

Published Feb 25, 2026 · Updated Feb 25, 2026

Improper resource release in KrakenD CE and EE Circuit Breaker modules allows remote authenticated users to disrupt requests under load. The component mismanages context cancellation, allowing one cancellation to cascade through the system and trigger unexpected request failures. Exposure requires a configured Circuit Breaker and affected CE before 2.13.1 or EE before 2.12.5; the bounded impact is degraded service availability.

CVSS severityUnavailable
Unscored
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper resource release in KrakenD CE and EE Circuit Breaker modules allows remote authenticated users to disrupt requests under load. The component mismanages context cancellation, allowing one cancellation to cascade through the system and trigger unexpected request failures. Exposure requires a configured Circuit Breaker and affected CE before 2.13.1 or EE before 2.12.5; the bounded impact is degraded service availability.

The record

CVE
CVE-2026-3206
Published
Feb 25, 2026
Updated
Feb 25, 2026
Vendor
KrakenD
Product
KrakenD Community Edition
Classifications
CWE-404, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.13.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

KrakenD · KrakenD Community Editionversion=0 <2.13.1
KrakenD · KrakenD Enterprise Editionversion=0 <2.12.5

Published CVSS scores

1.3KrakenDCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-404Improper Resource Shutdown or Release
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo