CVE-2025-60876
Description
A flaw was found in BusyBox wget. This vulnerability allows header injection via raw CR/LF and other C0 control bytes in the HTTP request-target. An attacker can exploit this by crafting a URL containing these control characters to inject arbitrary HTTP headers into the outgoing request, potentially leading to HTTP response splitting, cache poisoning, or security policy bypass.
Statement
This issue arises because BusyBox wget fails to sanitize control characters in the request-target before constructing the HTTP/1.1 request line. When wget processes a URL containing raw CR (0x0D), LF (0x0A), or other C0 control bytes, these characters are passed directly into the HTTP request without percent-encoding. This breaks the expected request-line format (METHOD SP request-target SP HTTP/1.1) and allows an attacker to terminate the request line prematurely and inject arbitrary headers on subsequent lines.
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 | 5.4 | N/A | 6.5 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | Required | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | Low | N/A | Low |
| Integrity Impact | Low | N/A | Low |
| Availability Impact | None | N/A | None |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Understanding the Weakness (CWE)
Integrity
Technical Impact: Modify Application Data
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
