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SCA: security update for github.com/tektoncd/pipeline (GHSA-rmx9-2pp3-xhcr)

medium Tenable Cloud Security Plugin ID 440695

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. From 0.43.0 to
 1.11.0, trusted resources verification policies match a resource source string (refSource.URI) against
 spec.resources[].pattern using regexp.MatchString. In Go, regexp.MatchString reports a match if the
 pattern matches anywhere in the string, so common unanchored patterns (including examples in tekton
 documentation) can be bypassed by attacker-controlled source strings that contain the trusted pattern as a
 substring. This can cause an unintended policy match and change which verification mode/keys apply.
 (CVE-2026-25542)

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-rmx9-2pp3-xhcr

Plugin Details

Severity: Medium

ID: 440695

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 4/21/2026

Updated: 5/25/2026

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:C/A:N

CVSS Score Source: CVE-2026-25542

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:H/A:N

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-2026-25542

cwe: CWE-185