CVE-2026-26224: Intego Log Reporter TOCTOU Local Privilege Escalation
Intego Log Reporter, a macOS diagnostic utility bundled with Intego security products that collects system and application logs for support analysis, contains a local privilege escalation vulnerability. A root-executed diagnostic script creates and writes files in /tmp without enforcing secure directory handling, introducing a time-of-check to time-of-use (TOCTOU) race condition. A local unprivileged user can exploit a symlink-based race condition to cause arbitrary file writes to privileged system locations, resulting in privilege escalation to root.
Security readout for executives and security teams
Plain-English summary
This is a local macOS privilege escalation in Intego Log Reporter, a diagnostic utility bundled with Intego security products. A non-admin user on an affected Mac could potentially turn insecure temporary-file handling into root-level file writes. The issue matters most on shared endpoints, developer workstations, and Macs where attackers may already have a foothold.
Executive priority
Treat as high priority for managed macOS fleets using Intego products. It is not a remote internet-facing flaw, but it can convert an existing local foothold into root control. Prioritize inventory, vendor remediation tracking, and containment on shared or sensitive Macs.
Technical view
A root-run diagnostic script writes under /tmp without secure directory handling, creating a CWE-367 TOCTOU race. The provided description says a local low-privileged user can win a symlink race and redirect writes to privileged locations, leading to root escalation. CVSS v4.0 is 8.5 high, with AV:L, AC:L, PR:L, UI:N.
Likely exposure
Exposure appears limited to macOS systems with Intego Log Reporter present, likely through bundled Intego security products. The supplied affected-version data is incomplete, listing version "0" and default status unknown, so exact product and version scope should be verified against Intego guidance.
Exploitation context
The bundle includes a technical Quarkslab write-up tagged as exploit, but KEV is false and no provided source states active exploitation in the wild. Exploitation requires local low-privileged access to the Mac, then abuses a race condition in root-executed log collection behavior.
Researcher notes
Key uncertainty is affected-version scope and official fix status. The source bundle supports the root cause, CWE, CVSS, and local privilege escalation impact, but does not provide vendor patch details. Avoid assuming all Intego products are affected without confirming Log Reporter presence and vendor statements.
Mitigation direction
Check Intego guidance for fixed versions or supported remediation.
Update affected Intego products when a vendor fix is available.
Restrict Log Reporter use to trusted administrative workflows.
Remove or disable unnecessary diagnostic tooling where policy allows.
Prioritize hardening on shared Macs and high-value workstations.
Validation and detection
Inventory macOS endpoints for Intego products and Log Reporter presence.
Confirm installed versions against Intego or advisory guidance.
Review endpoint logs for suspicious privileged writes linked to /tmp activity.
Validate local user access controls on exposed Macs.
Track CVE and vendor advisories for version-scope updates.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · low confidence lookup
CWE-367: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
1CVSS vectors
3Timeline events
1ADP providers
5Source links
SSVC decision data
CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: total
CVSS vector scores
1 official score
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-367 · source CWE mapping
Time-of-check Time-of-use (TOCTOU) Race Condition
Time-of-check Time-of-use (TOCTOU) Race Condition represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.