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54a4ff977b
See the release notes of intermediate versions:
- https://github.com/yhirose/cpp-httplib/releases/tag/v0.28.0
- https://github.com/yhirose/cpp-httplib/releases/tag/v0.29.0
- https://github.com/yhirose/cpp-httplib/releases/tag/v0.30.0
- https://github.com/yhirose/cpp-httplib/releases/tag/v0.30.1
- https://github.com/yhirose/cpp-httplib/releases/tag/v0.30.2
- https://github.com/yhirose/cpp-httplib/releases/tag/v0.31.0
- https://github.com/yhirose/cpp-httplib/releases/tag/v0.32.0
- https://github.com/yhirose/cpp-httplib/releases/tag/v0.33.0
- https://github.com/yhirose/cpp-httplib/releases/tag/v0.33.1
- https://github.com/yhirose/cpp-httplib/releases/tag/v0.34.0
- https://github.com/yhirose/cpp-httplib/releases/tag/v0.35.0
- https://github.com/yhirose/cpp-httplib/releases/tag/v0.36.0
- https://github.com/yhirose/cpp-httplib/releases/tag/v0.37.0
- https://github.com/yhirose/cpp-httplib/releases/tag/v0.37.1
- https://github.com/yhirose/cpp-httplib/releases/tag/v0.37.2
This fixes numerous vulnerabilities:
- CVE-2026-21428:
cpp-httplib is a C++11 single-file header-only cross platform
HTTP/HTTPS library. Prior to version 0.30.0, the ``write_headers``
function does not check for CR & LF characters in user supplied
headers, allowing untrusted header value to escape header lines. This
vulnerability allows attackers to add extra headers, modify request
body unexpectedly & trigger an SSRF attack. When combined with a
server that supports http1.1 pipelining (springboot, python twisted
etc), this can be used for server side request forgery (SSRF). Version
0.30.0 fixes this issue.
https://www.cve.org/CVERecord?id=CVE-2026-21428
- CVE-2026-22776:
cpp-httplib is a C++11 single-file header-only cross platform
HTTP/HTTPS library. Prior to version 0.30.1, a Denial of Service (DoS)
vulnerability exists in cpp-httplib due to the unsafe handling of
compressed HTTP request bodies (Content-Encoding: gzip, br, etc.). The
library validates the payload_max_length against the compressed data
size received from the network, but does not limit the size of the
decompressed data stored in memory.
https://www.cve.org/CVERecord?id=CVE-2026-22776
- CVE-2026-28434:
cpp-httplib is a C++11 single-file header-only cross platform
HTTP/HTTPS library. Prior to 0.35.0, when a request handler throws a
C++ exception and the application has not registered a custom
exception handler via set_exception_handler(), the library catches the
exception and writes its message directly into the HTTP response as a
header named EXCEPTION_WHAT. This header is sent to whoever made the
request, with no authentication check and no special configuration
required to trigger it. The behavior is on by default. A developer who
does not know to opt in to set_exception_handler() will ship a server
that leaks internal exception messages to any client. This
vulnerability is fixed in 0.35.0.
https://www.cve.org/CVERecord?id=CVE-2026-28434
- CVE-2026-28435:
cpp-httplib is a C++11 single-file header-only cross platform
HTTP/HTTPS library. Prior to 0.35.0, cpp-httplib (httplib.h) does not
enforce Server::set_payload_max_length() on the decompressed request
body when using HandlerWithContentReader (streaming ContentReader)
with Content-Encoding: gzip (or other supported encodings). A small
compressed payload can expand beyond the configured payload limit and
be processed by the application, enabling a payload size limit bypass
and potential denial of service (CPU/memory exhaustion). This
vulnerability is fixed in 0.35.0.
https://www.cve.org/CVERecord?id=CVE-2026-28435
- CVE-2026-29076:
cpp-httplib is a C++11 single-file header-only cross platform
HTTP/HTTPS library. Prior to version 0.37.0, cpp-httplib uses
std::regex (libstdc++) to parse RFC 5987 encoded filename* values in
multipart Content-Disposition headers. The regex engine in libstdc++
implements backtracking via deep recursion, consuming one stack frame
per input character. An attacker can send a single HTTP POST request
with a crafted filename* parameter that causes uncontrolled stack
growth, resulting in a stack overflow (SIGSEGV) that crashes the
server process. This issue has been patched in version 0.37.0.
https://www.cve.org/CVERecord?id=CVE-2026-29076
- CVE-2026-31870:
cpp-httplib is a C++11 single-file header-only cross platform
HTTP/HTTPS library. Prior to 0.37.1, when a cpp-httplib client uses
the streaming API (httplib::stream::Get, httplib::stream::Post, etc.),
the library calls std::stoull() directly on the Content-Length header
value received from the server with no input validation and no
exception handling. std::stoull throws std::invalid_argument for non-
numeric strings and std::out_of_range for values exceeding ULLONG_MAX.
Since nothing catches these exceptions, the C++ runtime calls
std::terminate(), which kills the process with SIGABRT. Any server the
client connects to — including servers reached via HTTP redirects,
third-party APIs, or man-in-the-middle positions can crash the client
application with a single HTTP response. No authentication is
required. No interaction from the end user is required. The crash is
deterministic and immediate. This vulnerability is fixed in 0.37.1.
https://www.cve.org/CVERecord?id=CVE-2026-31870
- CVE-2026-32627:
cpp-httplib is a C++11 single-file header-only cross platform
HTTP/HTTPS library. Prior to 0.37.2, when a cpp-httplib client is
configured with a proxy and set_follow_location(true), any HTTPS
redirect it follows will have TLS certificate and hostname
verification silently disabled on the new connection. The client will
accept any certificate presented by the redirect target — expired,
self-signed, or forged — without raising an error or notifying the
application. A network attacker in a position to return a redirect
response can fully intercept the follow-up HTTPS connection, including
any credentials or session tokens in flight. This vulnerability is
fixed in 0.37.2.
https://www.cve.org/CVERecord?id=CVE-2026-32627
Signed-off-by: Titouan Christophe <titouan.christophe@mind.be>
Signed-off-by: Julien Olivain <ju.o@free.fr>
(cherry picked from commit 8dad17ea06)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at https://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches