Skip to main content
VulnerabilityPublished

CVE-2026-117346: Bitcoin Core through 31.1 is vulnerable to Denial of Service via undo files having no size limit

Source GCVE Database

0
Compare
Authoritative record:CVE-2026-117346· High

Not known to be exploited.

Data as of 30 Oct 2026, 16:48 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 30 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

AI-suggested

Users should monitor vendor advisories for updates or fixes addressing this issue. Until a fix is available, consider limiting disk usage or monitoring undo file sizes as a temporary measure.

Description

Bitcoin Core versions up to and including 31.1 have a vulnerability where undo files have no size limit, which can lead to a Denial of Service (DoS) condition.

References

Community reviews

Loading reviews…