CVE-2025-26819 Denial of service in Monero
Attackers can cause denial of service against Monero nodes by exploiting missing response limits on HTTP server connections.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-26819?
CVE-2025-26819 is a high-severity denial of service vulnerability in getmonero Monero, published on 14 Feb 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Monero through 0.18.3.4 before ec74ff4 does not have response limits on HTTP server connections.
Weakness: CWE-770
Which versions are affected by CVE-2025-26819?
It affects 1 product.
Products include Getmonero Monero.
How do I fix CVE-2025-26819?
Apply the vendor's patch.
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-2025-26819 being exploited?
There is no known exploitation of CVE-2025-26819 in the wild and no public exploit code.
Other vulnerabilities in getmonero Monero
Sources
Also known as DEBIAN-CVE-2025-26819, GHSA-w9f7-3m82-hj3j, UBUNTU-CVE-2025-26819.