---
title: "AdonisJS HTTP Server - Denial of Service"
description: "AdonisJS HTTP Server < 8.2.2 and < 9.1.1 contains a denial of service caused by adjacent greedy repetitions with overlapping character classes in router.matchers.slug(), letting attackers cause excessive CPU use and block event loop, exploit requires attacker-controlled route parameter."
url: https://panop.io/threat-heartbeat/CVE-2026-104150/
---

# CVE-2026-104150 AdonisJS HTTP Server - Denial of Service

AdonisJS HTTP Server < 8.2.2 and < 9.1.1 contains a denial of service caused by adjacent greedy repetitions with overlapping character classes in router.matchers.slug(), letting attackers cause excessive CPU use and block event loop, exploit requires attacker-controlled route parameter.

CVSS base score 8.7 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-104150)

## Details

Type

Denial Of Service

Impact

Denial Of Service

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Published

15 October 2026

Updated

16 October 2026

Weakness

[CWE-400](https://cwe.mitre.org/data/definitions/400.html)

## Vendor fix

Update to versions 8.2.2 or 9.1.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-104150](https://nvd.nist.gov/vuln/detail/CVE-2026-104150)
- [https://github.com/adonisjs/http-server/commit/86af38ca861528f673dcac6a4806197de038d1f7](https://github.com/adonisjs/http-server/commit/86af38ca861528f673dcac6a4806197de038d1f7)
- [https://github.com/adonisjs/http-server/commit/d8c749aa9f66d5d214bad1cad727264aef4be727](https://github.com/adonisjs/http-server/commit/d8c749aa9f66d5d214bad1cad727264aef4be727)
- [https://github.com/adonisjs/http-server/releases/tag/v8.2.2](https://github.com/adonisjs/http-server/releases/tag/v8.2.2)
- [https://github.com/adonisjs/http-server/releases/tag/v9.1.1](https://github.com/adonisjs/http-server/releases/tag/v9.1.1)
- [https://github.com/adonisjs/http-server/security/advisories/GHSA-524c-h47v-m3h8](https://github.com/adonisjs/http-server/security/advisories/GHSA-524c-h47v-m3h8)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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