cpp-httplib open_stream serializes CRLF in request target into HTTP request line
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| yhirose | cpp-httplib | affected |
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| Yhirose | Cpp-httplib |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.366% probability within 30 days)
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ssvc
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Yhirose
Yhirose cpp-httplib |
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Yhirose
Yhirose cpp-httplib |
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| Description | cpp-httplib is a C++ header-only HTTP/HTTPS library. From 0.29.0 until 0.51.0, Client::open_stream in httplib.h accepts a caller-controlled path that reaches detail::write_request_line() without the detail::encode_path() protection used by the ordinary buffered request path. Raw carriage-return and line-feed bytes in the path can therefore split the outbound HTTP/1.1 request line and inject attacker-shaped request metadata. Exploitation requires an embedding application to pass remote user input into the open_stream path and a backend or intermediary that interprets the injected bytes; the established impact is modification of backend-visible request data, not direct confidentiality or availability impact. This issue is fixed in version 0.51.0. | |
| Title | cpp-httplib open_stream serializes CRLF in request target into HTTP request line | |
| Weaknesses | CWE-113 | |
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| Metrics |
cvssV3_1
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