Is CVE-2026-40924 actively exploited?

No active exploitation of CVE-2026-40924 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-40924 be exploited remotely?

Yes. CVE-2026-40924 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-40924?

CVE-2026-40924 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-40924

CWE-400Published: April 21, 2026· Updated: Apr 27, 2026

6.5

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.1th

Official Description

Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Prior to 1.11.1, the HTTP resolver's FetchHttpResource function calls io.ReadAll(resp.Body) with no response body size limit. Any tenant with permission to create TaskRuns or PipelineRuns that reference the HTTP resolver can point it at an attacker-controlled HTTP server that returns a very large response body within the 1-minute timeout window, causing the tekton-pipelines-resolvers pod to be OOM-killed by Kubernetes. Because all resolver types (Git, Hub, Bundle, Cluster, HTTP) run in the same pod, crashing this pod denies resolution service to the entire cluster. Repeated exploitation causes a sustained crash loop. The same vulnerable code path is reached by both the deprecated pkg/resolution/resolver/http and the current pkg/remoteresolution/resolver/http implementations. This vulnerability is fixed in 1.11.1.

NVD Source

Technical Analysis

CVE-2026-40924 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.