Fedora alert FEDORA-2026-7d233ad8b0 (erlang-cowlib)
| From: | updates--- via package-announce <package-announce@lists.fedoraproject.org> | |
| To: | package-announce@lists.fedoraproject.org | |
| Subject: | [SECURITY] Fedora 44 Update: erlang-cowlib-2.19.0-1.fc44 | |
| Date: | Fri, 14 Aug 2026 01:18:20 +0000 | |
| Message-ID: | <20260814011820.BFC6576656@bastion01.rdu3.fedoraproject.org> | |
| Archive-link: | Article |
-------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2026-7d233ad8b0 2026-08-14 01:17:35.635233+00:00 -------------------------------------------------------------------------------- Name : erlang-cowlib Product : Fedora 44 Version : 2.19.0 Release : 1.fc44 URL : https://github.com/ninenines/cowlib Summary : Support library for manipulating Web protocols Description : Support library for manipulating Web protocols. -------------------------------------------------------------------------------- Update Information: Coordinated security update of cowlib and cowboy, released together upstream on 2026-07-27. cowlib 2.19.0 fixes CVE-2026-59248: unbounded HPACK/QPACK prefixed-integer decoding allowed a denial of service. It also rejects empty HTTP/2 CONTINUATION frames and NUL bytes in multipart headers, validates cookie domain and path, limits cow_cookie:parse_cookie to 100 cookies by default, applies Sec-Websocket- Version limits to response headers, and enforces a custom max_concurrent_streams immediately. cowboy 2.18.0 is the matching release and requires cowlib 2.19.0. It rejects CR in HTTP/1.1 header values, rejects requests containing a fragment component, rejects HTTP/2 requests where host disagrees with :authority, adds a max_cookies option to the cowboy_req cookie functions, fixes max_headers handling with duplicate headers, and fixes the websocket max_inflate_size calculation. Note that cowboy 2.18.0 removes concurrent processing of pipelined HTTP/1.1 requests. Applications relying on that behaviour may see different throughput characteristics. -------------------------------------------------------------------------------- ChangeLog: * Wed Aug 5 2026 Peter Lemenkov <lemenkov@gmail.com> - 2.19.0-1 - Cowlib ver. 2.19.0 * Wed Jul 15 2026 Fedora Release Engineering <releng@fedoraproject.org> - 2.18.0-2 - Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild -------------------------------------------------------------------------------- References: [ 1 ] Bug #2508040 - CVE-2026-59248 erlang-cowlib: Cowlib: Denial of Service due to unbounded HPACK/QPACK prefixed-integer decoding [fedora-44] https://bugzilla.redhat.com/show_bug.cgi?id=2508040 [ 2 ] Bug #2508041 - CVE-2026-59248 erlang-cowlib: Cowlib: Denial of Service due to unbounded HPACK/QPACK prefixed-integer decoding [fedora-43] https://bugzilla.redhat.com/show_bug.cgi?id=2508041 -------------------------------------------------------------------------------- This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-7d233ad8b0' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgr... All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/keys -------------------------------------------------------------------------------- -- _______________________________________________ package-announce mailing list -- package-announce@lists.fedoraproject.org To unsubscribe send an email to package-announce-leave@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-cond... List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/package-ann... Do not reply to spam, report it: https://forge.fedoraproject.org/infra/tickets/issues/new