CVE-2025-70957 Denial of service in n/a
An attacker can cause a denial of service in the TON Lite Server by injecting a malicious Continuation object that consumes excessive CPU resources with low gas costs.
- 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-2025-70957?
CVE-2025-70957 is a high-severity denial of service vulnerability in n/a, published on 13 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A Denial of Service (DoS) vulnerability was discovered in the TON Lite Server before v2024.09. The vulnerability arises from the handling of external arguments passed to locally executed "get methods." An attacker can inject a constructed Continuation object (an internal TVM type) that is normally restricted within the VM. When the TVM executes this malicious continuation, it consumes excessive CPU resources while accruing disproportionately low virtual gas costs. This "free" computation allows an attacker to monopolize the Lite Server's processing power, significantly reducing its throughput and causing a denial of service for legitimate users acting through the gateway.
Weakness: CWE-674
Which versions are affected by CVE-2025-70957?
How do I fix CVE-2025-70957?
No fix has been published for CVE-2025-70957 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-2025-70957 being exploited?
There is no known exploitation of CVE-2025-70957 in the wild and no public exploit code.
Sources
Also known as GHSA-rvhp-mghq-8mvw.