CVE-2025-11143
Description
A flaw was found in org.eclipse.jetty. The Jetty URI parser handles invalid or unusual Uniform Resource Identifiers (URIs) differently compared to other common parsers. This discrepancy, known as differential parsing, can lead to security bypasses in systems that use multiple components to process URIs, such as when a blacklist enforcement component interprets a URI differently from a response generation component. At a minimum, this issue could unintentionally reveal internal system details.
Statement
This vulnerability is rated as Low by Red Hat. Successful usage of this vulnerability is non-trivial, as the attacker must be able to craft a URI that exploits Jetty's differential parsing while bypassing other parsers (ex. in a firewall or load balancer). Additionally, divulging implementation details is possible but not guaranteed while also being indirect, meaning that an attacker may be able to obtain error messages or behavioral differences, but those are not guaranteed. As such, there is likely no direct leak of sensitive data.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 3.7 | 6.5 | 3.7 |
| Attack Vector | Network | Network | Network |
| Attack Complexity | High | Low | High |
| Privileges Required | None | None | None |
| User Interaction | None | None | None |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality | None | Low | None |
| Integrity Impact | Low | Low | Low |
| Availability Impact | None | None | None |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
cve.org: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Understanding the Weakness (CWE)
Integrity,Non-Repudiation,Access Control
Technical Impact: Unexpected State; Hide Activities; Bypass Protection Mechanism
An attacker could create HTTP messages to exploit a number of weaknesses including 1) the message can trick the web server to associate a URL with another URL's webpage and caching the contents of the webpage (web cache poisoning attack), 2) the message can be structured to bypass the firewall protection mechanisms and gain unauthorized access to a web application, and 3) the message can invoke a script or a page that returns client credentials (similar to a Cross Site Scripting attack).
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