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CVE-2026-19274— IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent container image

Quick assessment

Affected
IBM Observability with Instana (Agent)
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.

IBM Observability with Instana (Agent) 版本 1.0.303 至 1.0.323 中的 IBM Instana Agent Operator 存在安全缺陷，可能导致已认证的 Kubernetes 租户劫持或永久破坏其他租户的集群级 RBAC 权限。 该缺陷的根源在于：集群作用域的 RBAC 对象仅通过 CR（自定义资源）名称进行唯一标识，缺少命名空间层面的区分机制。因此，攻击者可在自己控制的命名空间中创建一个与受害租户同名的 自定义资源，从而悄无声息地覆盖共享的 ，甚至直接将其

CVSS 9.6 · Critical

Affected Version Matrix 1

VendorProduct Version RangeStatus
IBM Observability with Instana (Agent) Build 1.0.303≤ 1.0.323 affected
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I. Basic Information for CVE-2026-19274

Vulnerability Information
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Vulnerability Title
IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent container image
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
IBM Observability with Instana (Agent) Build 1.0.303 ~ 1.0.323 cpe:2.3:a:ibm:observability_with_instana_agent:build:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-19274

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III. Intelligence Information for CVE-2026-19274

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Vendor Advisories for CVE-2026-19274 (1)

Same Patch Batch · IBM · 2026-09-04 · 64 CVEs total

CVE-2026-18658 9.8 CRITICAL IBM Operational Decision Manager for Aug 2026 - Multiple CVEs addressed
CVE-2026-18486 8.8 HIGH IBM ContextForge MCP Gateway is affected by credential disclosure and privilege escalation
CVE-2026-19298 8.8 HIGH Langflow is vulnerable to remote code execution due to authorization policy bypass in the
CVE-2026-19305 8.6 HIGH Langflow is vulnerable to Server-Side Request Forgery due to missing or bypassable URL val
CVE-2026-77822 8.2 HIGH IBM ContextForge MCP Gateway is affected by server-side request forgery (DNS rebinding) vi
CVE-2026-18221 8.1 HIGH IBM i is Affected By Improper Authorization and Authentication Vulnerabilities in DDM / DR
CVE-2026-18175 8.1 HIGH IBM i is Affected By Improper Authorization and Authentication Vulnerabilities in DDM / DR
CVE-2026-19303 8.1 HIGH Langflow is vulnerable to arbitrary file write and arbitrary file deletion due to unvalida
CVE-2026-19304 7.7 HIGH Langflow is vulnerable to Server-Side Request Forgery due to missing or bypassable URL val
CVE-2026-19306 7.7 HIGH Langflow is vulnerable to arbitrary local file read due to path traversal in ChatInput, bu
CVE-2026-19283 7.7 HIGH IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent con
CVE-2026-18905 7.7 HIGH IBM ContextForge MCP Gateway is affected by server-side request forgery via DNS TOCTOU at
CVE-2026-81832 7.7 HIGH IBM App Connect Enterprise and IBM Integration Bus for z/OS Adapter nodes are vulnerable t
CVE-2026-19300 7.5 HIGH Langflow is vulnerable to information disclosure due to cross-user MCP tool cache collisio
CVE-2026-18489 7.4 HIGH IBM ContextForge Translate is affected by cross-client credential context confusion
CVE-2026-5522 6.7 MEDIUM QRadar contains hard-coded credentials
CVE-2026-14470 6.5 MEDIUM Langflow OSS is affected by arbitrary file read due to path traversal vulnerabilities in f
CVE-2026-17273 6.5 MEDIUM IBM i is Affected By Multiple Vulnerabilities in Debug Server
CVE-2026-9186 6.5 MEDIUM Langflow is vulnerable to stored cross-site scripting and IP spoofing due to unsanitized M
CVE-2026-17622 6.5 MEDIUM Langflow OSS is affected by arbitrary file read due to path traversal vulnerabilities in f

Showing top 20 of 64 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Observability with Instana (Agent)
Same vendor: IBM
Same weakness: CWE-284

V. Comments for CVE-2026-19274

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