CVE-2026-72752 Routinator exits when requesting the output repeatedly
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-72752?
CVE-2026-72752 is a medium-severity vulnerability in NLnet Labs Routinator, published on 26 Oct 2026.
Official description
Routinator runs out of memory when the JSON output is requested many times concurrently. This condition can be triggered maliciously by an attacker by opening a large number of connections to the HTTP server. Additionally Routinator runs into a stack overflow and exits when a payload item with too much metadata is discarded at once.
This only affects users that make their HTTP or RTR server available to untrusted networks.
Weakness: CWE-755
Which versions are affected by CVE-2026-72752?
How do I fix CVE-2026-72752?
No fix has been published for CVE-2026-72752 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-72752 being exploited?
There is no known exploitation of CVE-2026-72752 in the wild and no public exploit code.
Sources
Also known as GHSA-9hhm-hxh6-hwxr.