High · CVSS 7.8CVE-2026-115805

Rapid7 Insight Agent Local Privilege Escalation via Shell Injection in mcp.json Configuration PathCVE-2026-115805

Answer in brief

CVE-2026-115805 records a High severity (CVSS 7.8) vulnerability in Rapid7 Insight Agent Local Privilege Escalation via Shell Injection in mcp.json Configuration Path. The current sources do not mark it as known exploited. The current feed maps Rapid7/Insight 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 Oct 29, 2026Updated Oct 29, 2026Source checked Oct 29, 2026First seen by HOL Oct 29, 2026Material review Oct 29, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.8
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 7.8. 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 Rapid7/Insight Agent (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Rapid7/Insight Agentgeneric	>=0 <4.1.4.43	4.1.4.43

Recommended response

Check inventory. Check lockfiles and deployed manifests for Rapid7/Insight Agent.
Review the reported fix. Source-reported solution: Update Rapid7 Insight Agent to version 4.1.4.43 or later.

Evidence timeline and material changes

Published upstream
Oct 29, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 29, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 29, 2026

Sources and claim methodology

Source referencedocs.rapid7.com

Upstream source description

Improper handling of local filesystem paths in Rapid7 Insight Agent on Linux and macOS may allow authenticated local users to gain elevated privileges. Exploitation requires existing local access and depends on the Agent's inventory collection processing the crafted path.

Quoted source text, attributed separately from HOL analysis.