CVE-2026-117346
High
Description
Bitcoin Core through 31.1 is vulnerable to Denial of Service via undo files having no size limit
SeverityHigh
CVSS7.5
Exploit probability—
Product
Core
PublishedOct 30, 2026
First seenNov 4, 2026
Weakness typeCWE-770Allocation of resources without limits
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Bitcoin Core | v ≤ 31.1 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.