---
id: "CVE-2026-117350"
kind: "vulnerability"
aliases: ["CVE-2026-117350"]
title: "Bitcoin Core: out-of-memory bug in versions before 29.5, 30.4, 31.2, 32.1"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["bitcoin-core", "bitcoin-node", "other", "self-hosted"]
not_affected_if: ["already-on-fixed-version"]
published_at: "2026-10-30T14:16:39+00:00"
first_seen_at: "2026-10-30T14:30:53+00:00"
updated_at: "2026-10-30T14:33:09+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-117350", "first_seen_at": "2026-10-30T14:30:53+00:00"}]
---

# Bitcoin Core: out-of-memory bug in versions before 29.5, 30.4, 31.2, 32.1

Bitcoin Core versions before 29.5, 30.4, 31.2 and 32.1 can run out of memory when handling some input. The sources do not say what input triggers it or what an attacker gets beyond a crash or resource exhaustion.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Run `bitcoind --version` (or `bitcoin-qt --version`) and compare against 29.5, 30.4, 31.2 and 32.1

## Fix

- Move to `29.5`, `30.4`, `31.2` or `32.1` on the matching release line

## Timeline

- 2026-10-30T14:30:53+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-117350

## From the sources

Bitcoin Core prior to 29.5, 30.4, 31.2 and 32.1 is vulnerable to an OOM issue.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_