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BusyBox wget thru 1.3.7 accepted raw CR (0x0D)/LF (0x0A) and other C0 control bytes in the HTTP request-target (path/query), allowing the request line to be split and attacker-controlled headers to be injected. To preserve the HTTP/1.1 request-line shape METHOD SP request-target SP HTTP/1.1, a raw space (0x20) in the request-target must also be rejected (clients should use %20).

🗓️ 13 Nov 2025 09:01:52Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 15 Views

BusyBox wget 1.3.7 accepts CRLF and C0 bytes in the request-target, enabling header injection; spaces in target should be rejected.

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09 Sep 2026 21:47Current
7High risk
Vulners AI Score7
CVSS 3.19.4
EPSS0.00291
SSVC
15