6.5

CVE-2026-54168: tektoncd pipelines-as-code Improper Privilege Management

CVSS: 6.5v3.1MediumAwaiting analysis
AliasesGHSA-6f2p-296r-cc28GO-2026-6263
Published 15-09-2026Last modified 17-09-2026
Open JSON

Vulnerability summary

CVE-2026-54168 is a medium (CVSS 6.5) Improper Privilege Management vulnerability in tektoncd pipelines-as-code. EPSS estimates a 0.59% chance of exploitation in the next 30 days, higher than 47% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.59%
0%100%
Low · +0.17 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
OPENSUSE-SU-2026:21761-1SUSE-SU-2026:23625-1

Timeline

  1. 15-09-2026
    PublishedVulnerability first disclosed.
  2. 17-09-2026
    Last modifiedVulnerability information updated.

Description

Pipelines-as-Code is a CI/CD system that lets users define Tekton pipelines in source code repositories. Prior to 0.37.8, 0.39.6, 0.42.1, and 0.48.0, a GitHub App installation token created during webhook processing is not scoped to the repository that triggered the event when the App is installed across multiple repositories. A user with push access to one repository can submit a PipelineRun containing a pipelinesascode.tekton.dev/task remote task annotation that targets a private repository in the same installation. When ScopeTokenToListOfRepos returns no explicit scope, the missing triggering repository ID leaves the token able to access the entire installation. Pipelines-as-Code resolves and inlines the remote private task with that token, disclosing the repository's Tekton definitions. The demonstrated impact is read-only and does not provide write access. This issue is fixed in versions 0.37.8, 0.39.6, 0.42.1, and 0.48.0.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.59%

Chance of exploitation in the next 30 days

Percentile

47%

Versus all other CVEs

30-day change

+0.17 pp

From 0.41% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.59%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Github.com/openshift-pipelines1 product
  • pipelines-as-code< 0.37.8 | ≥ 0.38.0, < 0.39.6 | ≥ 0.40.0, < 0.42.1 | ≥ 0.43.0, < 0.48.0
Tektoncd1 product
  • pipelines-as-code< 0.37.8 | ≥ 0.38.0, < 0.39.6 | ≥ 0.40.0, < 0.42.1 | ≥ 0.43.0, < 0.48.0

2 vendors · 2 products

References

10 links