CVE-2026-117346
Bitcoin Core through 31.1 is vulnerable to Denial of Service via undo files having no size limit
Bitcoin Core through 31.1 is vulnerable to Denial of Service via undo files having no size limit
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Bitcoin Core through 31.1 is vulnerable to Denial of Service via undo files having no size limit
- Record
CVE-2026-117346- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-770
- Updated
- 2026-11-04
EUVDEUVD-2026-114087
Bitcoin Core through 31.1 is vulnerable to Denial of Service via undo files having no size limit
- Record
EUVD-2026-114087- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-04
GitHub AdvisoriesGHSA-chgh-55w7-23p2
Bitcoin Core through 31.1 is vulnerable to Denial of Service via undo files having no size limit
Bitcoin Core through 31.1 is vulnerable to Denial of Service via undo files having no size limit
- Record
GHSA-chgh-55w7-23p2- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-770
- Updated
- 2026-11-04
NVD
Bitcoin Core through 31.1 is vulnerable to Denial of Service via undo files having no size limit
- Record
CVE-2026-117346- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-770
- Updated
- 2026-11-04
History
| Recorded | Changed | Sources |
|---|---|---|
| cwes, facts, severity | CVE List | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-117346 is a high vulnerability (CVSS 7.5), published October 30, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.49%, the 42nd percentile. No source names a fixed version.