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Vulnerabilities

Vulnerability · CVE-2026-104150

AdonisJS HTTP Server is a package for handling HTTP requests in the AdonisJS framework.

Published Oct 15, 2026 · catalog updated Oct 15, 2026 · AdonisJS HTTP Server is

Check if you run it

No confirmed exploitation is on record for CVE-2026-104150. EPSS is 0.37%. Act only if a listed version of AdonisJS HTTP Server is is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (AdonisJS HTTP Server is).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.37%
Remediation
Advisory link
Affected products
npm @adonisjs · npm @adonisjs/http-server

### Description A Regular Expression Denial of Service vulnerability in the built-in AdonisJS slug route matcher may allow a remote attacker to block the Node.js event loop using a specially crafted URL. This affects applications using on a route parameter reachable by an attacker. ### Details The regular expression used by contains adjacent greedy quantifiers with overlapping character classes: When the matcher receives a long string ending with a character rejected by the final assertion, the regular expression engine must evaluate many possible ways of dividing the input between the overlapping quantifiers before determining that it does not match. This results in quadratic execution time. Testing measured an approximate complexity of . Route matchers are evaluated against attacker-controlled URL segments during routing. Therefore, an unauthenticated attacker can trigger the vulnerable expression by sending a request to a route configured as follows: Routing occurs before route and group middleware. As a result, authentication or rate-limiting middleware attached to the affected route may not prevent exploitation. The vulnerability is limited to routes that explicitly use the built-in slug matcher. ### Impact Exploitation requires an application to expose a route using with an attacker-controlled parameter. A specially crafted request can cause excessive CPU consumption and block the Node.js event loop. While the expression is being evaluated, the process cannot serve other requests, including requests to unrelated routes or health-check endpoints. Only a small number of requests may be required to consume the capacity of a worker. Reverse-proxy request-line limits reduce the maximum processing time of an individual request but do not fully mitigate the vulnerability. ### Patches Fixes targeting v6 and v7 have been published below. Users should upgrade to a version that includes the following fix: - https://github.com/adonisjs/http-server/releases/tag/v9.1.1 - ht

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • npm @adonisjsversion unspecified
  • npm @adonisjs/http-server0 → 8.2.2
  • npm @adonisjs/http-server9.0.0 → 9.1.1

How to fix CVE-2026-104150

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-104150. EPSS is 0.37%. Act only if a listed version of AdonisJS HTTP Server is is installed.

Which versions are affected?

Compare what you have installed with 0 → 8.2.2, 9.0.0 → 9.1.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-1333: Inefficient Regular Expression Complexity; CWE-400: Uncontrolled Resource Consumption. EPSS 0.37%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 15, 2026 · NIST NVD

    Detected

    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 cause

  2. Oct 15, 2026 · GitHub Advisory Database

    Fix available

    @adonisjs/http-server fixed in 9.1.1; @adonisjs/http-server fixed in 8.2.2

  3. Oct 15, 2026 · GitHub Advisory Database

    Fix available

    @adonisjs/http-server fixed in 9.1.1

  4. Oct 15, 2026 · GitHub Advisory Database

    Fix available

    @adonisjs/http-server fixed in 8.2.2

  5. Oct 15, 2026 · GitHub Advisory Database

    Updated

    ### Description A Regular Expression Denial of Service vulnerability in the built-in AdonisJS slug route matcher may allow a remote attacker to block the Node.js event loop using a specially crafted URL. This affects applications using on a route parameter reachable by an attacker. ### Details The regular expression used by contains adjacent greedy quantifiers with overlapping character classes: W

Sources

  • CVE.orgVulnerability recordCVE-2026-104150

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-104150

    30-day exploitation probability 0.4%

    first.org
  • GitHub Advisory DatabasePackage advisoryGHSA-524c-h47v-m3h8

    GitHub Advisory Database record mirrored by OSV.

    github.com
  • GitLab Advisory DatabasePackage advisoryCVE-2026-104150

    A Regular Expression Denial of Service vulnerability in the built-in AdonisJS slug route matcher may allow a remote attacker to block the Node.js event loop using a specially crafted URL. This affects applications using router.matchers.slug() on a route parameter reachable by an attacker.

    advisories.gitlab.com
  • NIST NVDVulnerability recordCVE-2026-104150

    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 ma

    nvd.nist.gov
  • OpenSSF OSV / OSV ScannerPackage advisoryGHSA-524c-h47v-m3h8

    AdonisJS HTTP Server: Uncontrolled Resource Consumption and Inefficient Regular Expression Complexity

    osv.dev

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.