IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent container image (CVE-2026-19274) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-19274

IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent container image

Answer in brief

CVE-2026-19274 records a Unknown severity vulnerability in IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent container image. The current sources do not mark it as known exploited. The current feed maps IBM/Observability with Instana (Agent) (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 4, 2026Updated Sep 4, 2026Source checked Sep 4, 2026First seen by HOL Sep 4, 2026Material review Sep 4, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps IBM/Observability with Instana (Agent) (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
IBM/Observability with Instana (Agent)generic	Build 1.0.303	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for IBM/Observability with Instana (Agent).
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 4, 2026

Sources and claim methodology

Source referenceibm.com

Upstream source description

IBM Observability with Instana (Agent) Build 1.0.303 through 1.0.323 IBM Instana Agent Operator could allow an authenticated Kubernetes tenant to hijack or permanently destroy another tenant's cluster-level RBAC permissions, caused by cluster-scoped RBAC objects being keyed solely by the bare CR name with no namespace disambiguation, allowing a same-named `InstanaAgent` CR in an attacker-controlled namespace to silently overwrite the shared `ClusterRoleBinding` or delete it outright and revoke the victim agent's cluster monitoring access.

Quoted source text, attributed separately from HOL analysis.