CVE-2026-108755 Hatchet through 0.110.5 Unauthenticated Memory Exhaustion via SNS Ingestion Endpoint
Unauthenticated attackers can exhaust server memory by sending large or concurrent requests to the SNS ingestion endpoint, causing 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-2026-108755?
CVE-2026-108755 is a medium-severity denial of service vulnerability in hatchet-dev hatchet, published on 11 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Hatchet through 0.110.5 contains an allocation of resources without limits vulnerability that allows unauthenticated attackers to exhaust memory via the SNS ingestion endpoint. Attackers can send arbitrarily large or concurrent request bodies to POST /api/v1/sns/{tenant}/{event} with any UUID, which the SnsUpdate handler buffers before signature verification, degrading availability.
Weakness: CWE-770
Which versions are affected by CVE-2026-108755?
How do I fix CVE-2026-108755?
No fix has been published for CVE-2026-108755 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-2026-108755 being exploited?
There is no known exploitation of CVE-2026-108755 in the wild and no public exploit code.
Sources
Also known as GHSA-pjjx-3frh-55ch.