CVE-2026-26445 Denial of service in n/a
A malicious client can cause the STOMP broker to hang by sending partial frames, leading to a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-26445?
CVE-2026-26445 is a high-severity denial of service vulnerability in n/a, published on 26 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-770
Which versions are affected by CVE-2026-26445?
How do I fix CVE-2026-26445?
No fix has been published for CVE-2026-26445 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-26445 being exploited?
There is no known exploitation of CVE-2026-26445 in the wild and no public exploit code.
Sources
Also known as GHSA-p6pc-q683-388g, UBUNTU-CVE-2026-26445.