This version fixes security issues and bugs. Security fixes: * Fix a side channel in RSA PKCS#1 v1.5 decryption. (CVE-2026-50587) * Fix a bug where transcript-hash computation errors during TLS 1.2 extended master secret calculation could be ignored instead of causing the handshake to fail. (CVE-2026-50581) * Fix a TLS 1.3 server-side error-handling bug affecting session ticket generation. (CVE-2026-50640) * Fix renegotiation failing and potentially causing a buffer overflow in DTLS when badmac_limit is enabled. (CVE-2026-50713) * Reject ChaCha20 operations that would make the 32-bit block counter wrap around, which could otherwise reuse keystream and compromise confidentiality. (CVE-2026-50584) * Fixed a TLS 1.3 record-boundary validation issue that could allow unauthenticated plaintext data to be processed across a key change. * Fix a possible buffer overflow in mbedtls_ecdh_calc_secret() (CVE-2026-35336) * Fix a remote buffer overflow in (D)TLS with ECDHE-PSK cipher suites when CBC is disabled. (CVE-ID-50580) * Fix a side channel in ECC computations that allows a powerful local attacker (typically, untrusted OS attacking a secure enclave) to fully recover long-term secret keys). (CVE-2026-54435) * Fix a potential information disclosure in TLS 1.2 servers using session tickets. (CVE-2026-50586) * Fix timing side channel in RSA key generation, prime generation and primality testing, on platforms where division is not constant-time. * Fix a 1-byte buffer overread when parsing a malformed ECC public key in the PK module. (CVE-2026-50583) * Fix an out-of-bounds read when parsing TLS 1.2 ECJPAKE ServerKeyExchange messages. (CVE-2026-50588) * Fix a use-after-free/double-free risk in mbedtls_pkcs7_free() when reusing an mbedtls_pkcs7 context across parse -> free -> parse -> free cycles. (CVE-2026-50579) * PKCS7 now rejects weak hash algorithms (RIPEMD160, MD5, SHA-1, SHA-224, SHA3-224) on signature verification. * Improved documentation of mbedtls_ssl_conf_sig_algs() to emphasize that this function only sets signature algorithms that are enforced during TLS key exchange and not on certificate verification. (CVE-2026-54441) * Ensure 'dtls_srtp_info' field from 'mbedtls_ssl_context' is properly zeroized when mbedtls_ssl_session_reset() is called. (CVE-2026-50585) * Fix a bug where mbedtls_ssl_read() and mbedtls_ssl_write() could return 1 instead of an error code if the random generator failed when a server called these functions before the end of a TLS 1.3 handshake. * Fix TLS 1.3 clients to reject a HelloRetryRequest whose selected group was not advertised in the original ClientHello. (CVE-2026-25832) * Fix two bugs in the X.509 certificate parser that caused some inputs with a malformed basicConstraints extension to be accepted. (CVE-2026-49300) Full release notes: https://github.com/Mbed-TLS/mbedtls/releases/tag/mbedtls-3.6.7 Remove backported upstream patches that are included in this release. Signed-off-by: Magnus Kroken <mkroken@gmail.com> Link: https://github.com/openwrt/openwrt/pull/24131 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.
Sunshine!
Download
Built firmware images are available for many architectures and come with a package selection to be used as WiFi home router. To quickly find a factory image usable to migrate from a vendor stock firmware to OpenWrt, try the Firmware Selector.
If your device is supported, please follow the Info link to see install instructions or consult the support resources listed below.
An advanced user may require additional or specific package. (Toolchain, SDK, ...) For everything else than simple firmware download, try the wiki download page:
Development
To build your own firmware you need a GNU/Linux, BSD or macOS system (case sensitive filesystem required). Cygwin is unsupported because of the lack of a case sensitive file system.
Requirements
You need the following tools to compile OpenWrt, the package names vary between distributions. A complete list with distribution specific packages is found in the Build System Setup documentation.
binutils bzip2 diff find flex gawk gcc-6+ getopt grep install libc-dev libz-dev
make4.1+ perl python3.8+ rsync subversion unzip which
Quickstart
-
Run
./scripts/feeds update -ato obtain all the latest package definitions defined in feeds.conf / feeds.conf.default -
Run
./scripts/feeds install -ato install symlinks for all obtained packages into package/feeds/ -
Run
make menuconfigto select your preferred configuration for the toolchain, target system & firmware packages. -
Run
maketo build your firmware. This will download all sources, build the cross-compile toolchain and then cross-compile the GNU/Linux kernel & all chosen applications for your target system.
Related Repositories
The main repository uses multiple sub-repositories to manage packages of
different categories. All packages are installed via the OpenWrt package
manager called opkg. If you're looking to develop the web interface or port
packages to OpenWrt, please find the fitting repository below.
-
LuCI Web Interface: Modern and modular interface to control the device via a web browser.
-
OpenWrt Packages: Community repository of ported packages.
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OpenWrt Routing: Packages specifically focused on (mesh) routing.
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OpenWrt Video: Packages specifically focused on display servers and clients (Xorg and Wayland).
Support Information
For a list of supported devices see the OpenWrt Hardware Database
Documentation
Support Community
- Forum: For usage, projects, discussions and hardware advise.
- Support Chat: Channel
#openwrton oftc.net.
Developer Community
- Bug Reports: Report bugs in OpenWrt
- Dev Mailing List: Send patches
- Dev Chat: Channel
#openwrt-develon oftc.net.
License
OpenWrt is licensed under GPL-2.0
