---
id: "CVE-2026-123179"
page: "https://infrastack.ai/live/CVE-2026-123179"
kind: "vulnerability"
aliases: ["CVE-2026-123179"]
title: "Ivanti Sentry: insecure Tomcat shutdown listener lets a local user cause denial of service"
severity: "medium"
cvss: 5.5
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["ivanti-sentry", "self-hosted", "vendor"]
not_affected_if: ["fixed-version", "not-running-sentry"]
published_at: "2026-11-10T16:17:18+00:00"
first_seen_at: "2026-11-10T16:22:34+00:00"
updated_at: "2026-11-10T16:23:37+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-123179", "first_seen_at": "2026-11-10T16:22:34+00:00"}]
exploit_sources: []
---

# Ivanti Sentry: insecure Tomcat shutdown listener lets a local user cause denial of service

Link for people: https://infrastack.ai/live/CVE-2026-123179 (this .md is for agents)

Ivanti Sentry ships a Tomcat shutdown listener that is insecurely initialized by default. A local authenticated attacker can use it to cause a denial of service.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Ivanti Sentry version against the fixed versions below

## Fix

- Ivanti Sentry: move to `10.7.4` or `10.8.3` (the sources give fixed versions for these branches)

## Timeline

- 2026-11-10T16:22:34+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-123179

## From the sources

An insecure default initialization of resource in the Tomcat shutdown listener of Ivanti Ivanti Sentry before versions 10.7.4 and 10.8.3 allows a local authenticated attacker to cause a denial of service.

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