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OpenAdvisories
High · 7.5 CVE-2026-26445 EUVD-2026-66756GHSA-p6pc-q683-388g

stomper 5e2741e is vulnerable to Denial of Service. A malicious client can send partial STOMP frames and keep the TCP connections open, whi…

Published Aug 26, 2026 · Updated Sep 2, 2026 · Assigned by mitre

Description

stomper 5e2741e is vulnerable to Denial of Service. A malicious client can send partial STOMP frames and keep the TCP connections open, which, combined with the broker s use of edge-triggered epoll (EPOLLET) and MSG_PEEK in recv(), causes sockets to enter a permanent half-read state. When enough such connections accumulate, the broker stops receiving any further epoll events for those sockets and eventually hangs in epoll_wait, effectively refusing to process new messages.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Ubuntu 26.10 stomper No fix yet —
Ubuntu 26.04 LTS stomper No fix yet —
Ubuntu 24.04 LTS stomper No fix yet —
Ubuntu 22.04 LTS stomper No fix yet —
Ubuntu 20.04 LTS stomper No fix yet —
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 18.04 LTS stomper No fix yet —
Ubuntu 16.04 LTS stomper No fix yet —

References