Paths contain matrix variables bypass decorators
Impact
Spring supports Matrix variables.
When Spring integration is used, Armeria calls Spring controllers via TomcatService or JettyService with the path
that may contain matrix variables.
In this situation, the Armeria decorators might not invoked because of the matrix variables.
Let's see the following example:
// Spring controller
@GetMapping("/important/resources")
public String important() {...}
// Armeria decorator
ServerBuilder sb = ...
sb.decoratorUnder("/important/", authService);If an attacker sends a request with /important;a=b/resources, the request would bypass the authrorizer
Patches
Workarounds
Users can add decorators using regex. e.g. "regex:^/important.*"
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | com.linecorp.armeria:armeria | < 1.24.3 | 1.24.3 |
References
- https://github.com/line/armeria/security/advisories/GHSA-wvp2-9ppw-337j
- https://nvd.nist.gov/vuln/detail/CVE-2023-38493
- https://github.com/line/armeria/commit/039db50bbfc88014ea8737fd1e1ddd6fd3fc4f07
- https://github.com/line/armeria/commit/49e04ef231ad65750739529c7fa4ce946ff7588b
- https://docs.spring.io/spring-framework/reference/web/webmvc/mvc-controller/ann-methods/matrix-variables.html
- https://github.com/line/armeria
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-863- Platform
- Java / Kotlin (Maven)
- Package
com.linecorp.armeria:armeria- Disclosed
- 25.07.2023
- Updated
- 11.10.2026 13:19
Sources and licenses
OSV / GitHub Advisory Database - GHSA-wvp2-9ppw-337j - CC BY 4.0
Vulnerability history: com.linecorp.armeria:armeria
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 12.2019 07.2023
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 1
Disclosures per year
- 2019: 1
- 2020: 0
- 2021: 1
- 2022: 0
- 2023: 1
- 2024: 0
- 2025: 0
- 2026: 0
-
Paths contain matrix variables bypass decorators this entry
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