EUVD-2026-50058
GHSA-vhqp-r6hx-7vw5
Severity by source
AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
Local vector, no privileges required, high integrity impact typical of prototype pollution.
Primary rating from Vendor (ibm).
CVSS VectorVendor: ibm
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
Lifecycle Timeline
2DescriptionCVE.org
IBM Observability with Instana (Agent) Build 1.0.303 through 1.0.320 IBM Instana Node.js tracer component @instana/core version 6.2.1 is vulnerable to prototype pollution through its configuration normalization API.
Articles & Coverage 2
AnalysisAI
Prototype pollution in the @instana/core Node.js tracer, part of IBM Observability with Instana Agent builds 1.0.303 to 1.0.320, allows a local attacker to inject arbitrary properties into JavaScript object prototypes. This can lead to information disclosure and high integrity impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Local access to the machine running the Instana Agent is required. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 3.1 vector AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L indicates a local attack vector requiring no privileges or user interaction. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A local attacker gains access to the system running the Instana Agent and crafts a malicious configuration payload. When the payload is processed through the configuration normalization API, it pollutes the prototype, potentially altering application logic, leaking secrets, or causing denial of service. |
| Remediation | Apply the vendor-released patch by upgrading the Instana Agent to a fixed version. … Detailed patch versions, workarounds, and compensating controls in full report. |
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