Detections
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SCA: security update for github.com/tektoncd/pipeline (GHSA-m2cx-gpqf-qf74)

medium Tenable Self-Hosted Container Security Plugin ID 440682

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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.
 (CVE-2026-40924)

Solution

Update the github.com/tektoncd/pipeline library and its related packages to version 1.0.2 or later.

See Also

https://github.com/advisories/GHSA-m2cx-gpqf-qf74

Plugin Details

Severity: Medium

ID: 440682

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 4/21/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.39

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2026-40924

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/21/2026

Vulnerability Publication Date: 4/21/2026

Reference Information

CVE: CVE-2026-40924

cwe: CWE-400