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CVE-2026-77524— KEDA: Privilege escalation from namespace admin to cluster admin via KEDA TriggerAuthentication

Quick assessment

Affected
kedacore keda
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

KEDA is a Kubernetes-based Event Driven Autoscaling component. In version 2.20.2 and earlier, a namespace administrator who can create TriggerAuthentication and ScaledObject resources can set hashiCorpVault.address to a tenant-controlled endpoint and select Ku

CVSS 9.9 · Critical

Affected Version Matrix 1

VendorProduct Version RangeStatus
kedacore keda < 2.21.0 affected
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I. Basic Information for CVE-2026-77524

Vulnerability Information

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Vulnerability Title
KEDA: Privilege escalation from namespace admin to cluster admin via KEDA TriggerAuthentication
Source: CVE Program / CVE List V5
Vulnerability Description
KEDA is a Kubernetes-based Event Driven Autoscaling component. In version 2.20.2 and earlier, a namespace administrator who can create TriggerAuthentication and ScaledObject resources can set hashiCorpVault.address to a tenant-controlled endpoint and select Kubernetes authentication without an explicit credential. KEDA then uses the operator pod's projected ServiceAccount token and sends it to that endpoint as a Vault login credential. The JWT-shape filter from the prior CVE-2025-68476 remediation accepts the operator token because its subject is a Kubernetes ServiceAccount, so the attacker can obtain the operator's cluster-wide permissions, including broad Secret reads and workload or admission-related operations. This vulnerability is fixed in 2.21.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
kedacore keda < 2.21.0 -

II. Public POCs for CVE-2026-77524

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III. Intelligence Information for CVE-2026-77524

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Other References for CVE-2026-77524 (3)

IV. Related Vulnerabilities

Same product: keda
Same vendor: kedacore
Same weakness: CWE-269

V. Comments for CVE-2026-77524

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