CVE-2026-54282
Description
A flaw was found in Starlette, a lightweight Asynchronous Server Gateway Interface (ASGI) framework. Prior to version 1.3.0, the HTTP request path was not properly validated when reconstructing the request.url. A remote attacker could craft a malicious HTTP request path that does not begin with a forward slash, causing the framework to misinterpret the authority boundary. This could lead to request.url.hostname and request.url.netloc becoming attacker-controlled, potentially misleading applications that rely on these values into trusting an attacker-supplied host.
Statement
Red Hat rates this issue as having Low impact for Red Hat AI products. Bundled Starlette versions in Red Hat OpenShift AI, Red Hat AI Inference Server, and Red Hat Enterprise Linux AI are either not vulnerable or the flawed path validation is not reachable in supported deployments.
Mitigation
No mitigation required for unaffected deployments.
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).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 4.8 | 5.3 | N/A |
| Attack Vector | Network | Network | N/A |
| Attack Complexity | High | Low | N/A |
| Privileges Required | None | None | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | Low | None | N/A |
| Integrity Impact | Low | Low | N/A |
| Availability Impact | None | None | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Understanding the Weakness (CWE)
Other
Technical Impact: Varies by Context
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