VulnSocial

CVE-2026-40161Disclosure(linuxfoundation / tekton_pipelines)

LOWCVSS 6.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Starting in version 1.0.0 and prior to versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1, the Tekton Pipelines git resolver in API mode sends the system-configured Git API token to a user-controlled serverURL when the user omits the token parameter. A tenant with TaskRun or PipelineRun create permission can exfiltrate the shared API token (GitHub PAT, GitLab token, etc.) by pointing serverURL to an attacker-controlled endpoint. Versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1 fix the issue.

linuxfoundation CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-201

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • tekton_pipelines

Threat summary

  • 4 mentions across 3 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 3 signals
  • Disclosure: 2 classified signals
  • General: 2 classified signals
  • Peaked 2d ago at 2 mentions (2026-04-21); latest day: 1
  • 4 total mentions across 3 days

Affected systems

Vendors
linuxfoundation
Products
tekton_pipelines

Deep dive

Activity timeline4 mentions / 3d
01122Mentions · 2026-04-21: 2Mentions · 2026-04-22: 1Mentions · 2026-04-28: 1Technical Details · 2026-04-21: 1Technical Details · 2026-04-22: 1Technical Details · 2026-04-28: 104-2104-2204-28
Signal classification2 categories
Disclosure
250.0%
General
250.0%
Referenced assets4 URLs
Classification over time
DateTotalLabels
2026-04-212
Disclosure1General1
2026-04-221
General1
2026-04-281
Disclosure1
Full discourse4 posts
  • cvereports@_cvereports
    Disclosure

    CVE-2026-40161: CVE-2026-40161: Sensitive Token Exfiltration in Tekton Pipelines Git Resolver A high-severity vulnerability (CVSS 7.7) exists in the Tekton Pipelines Git resolver component. The flaw allows authenticated users with TaskRun creation pri... https://cvereports.com/reports/CVE-2026-40161

    Post summary

    A newly disclosed high‑severity vulnerability (CVSS 7.7) in Tekton Pipelines’ Git resolver permits authenticated users with TaskRun creation permissions to exfiltrate tokens.

    0000023
    36 followersView on X
  • PulsePatch.io@pulsepatchio
    General

    `Tekton Pipelines` Git resolver API mode (CVE-2026-40161) can leak system API tokens to user-controlled URLs. Review configurations and token permissions. #Tekton #CloudNative #Infosec https://www.pulsepatch.io/posts/cve-2026-40161-tekton-pipelines-api-token-leakage

    Post summary

    CVE-2026-40161 in Tekton Pipelines can leak system API tokens to user-controlled URLs; users are advised to review config and token permissions, but no PoC, exploit, or patch is mentioned.

    0000051
    12 followersView on X
  • DailyCVE@dailycve
    Disclosure

    🔴 Tekton Pipelines, Token Exfiltration, #CVE-2026-40161 (High) https://dailycve.com/tekton-pipelines-token-exfiltration-cve-2026-40161-high/

    Post summary

    A high-severity vulnerability (CVE‑2026‑40161) affecting Tekton Pipelines that enables token exfiltration has been publicly disclosed.

    0000032
    183 followersView on X
  • CVE@CVEnew
    General

    CVE-2026-40161 Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. From 1.0.0 to 1.10.0, the Tekton Pipelines git resolver in API mode sends t… https://www.cve.org/CVERecord?id=CVE-2026-40161

    Post summary

    The text mentions CVE-2026-40161 in the context of Tekton Pipelines, but offers no PoC, exploitation details, or mitigation information.

    00000198
    57.2K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Applinuxfoundationtekton_pipelines-go-

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