CVE-2026-54168Network attack vectorHinoki check available

Private repository disclosure via unscoped installation token

Published Sep 15, 2026 · Updated Sep 15, 2026

Authorization bypass in Tekton Pipelines as Code allows remote authenticated users to read private repository task definitions. Webhook processing can leave a GitHub App installation token scoped to every repository, and remote task resolution then inlines a targeted private Tekton definition. Exploitation requires push access to one repository and a multi-repository App installation; the demonstrated impact is read-only.

CVSS severity6.5
Medium
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Authorization bypass in Tekton Pipelines as Code allows remote authenticated users to read private repository task definitions. Webhook processing can leave a GitHub App installation token scoped to every repository, and remote task resolution then inlines a targeted private Tekton definition. Exploitation requires push access to one repository and a multi-repository App installation; the demonstrated impact is read-only.

The record

CVE
CVE-2026-54168
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
Tekton
Product
Pipelines as Code
Classifications
CWE-269, CWE-862, T1213.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 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=< 0.37.8
  2. Affected versionversion=>= 0.38.0, < 0.39.6
  3. Affected versionversion=>= 0.40.0, < 0.42.1
  4. Affected versionversion=>= 0.43.0, < 0.48.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Tekton · Pipelines as Codeversion=< 0.37.8; version=>= 0.38.0, < 0.39.6; version=>= 0.40.0, < 0.42.1; version=>= 0.43.0, < 0.48.0

Published CVSS scores

6.5GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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-269Improper Privilege Management
CWE-862Missing Authorization
T1213.003Code Repositories

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

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Your stack

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