Bitcoin Core up to 31.1 denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k1.13-

Summaryinfo

A vulnerability classified as problematic was found in Bitcoin Core up to 31.1. This affects an unknown part. The manipulation results in denial of service. This vulnerability is identified as CVE-2026-117346. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in Bitcoin Core up to 31.1. Affected is an unknown function. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

Bitcoin Core through 31.1 is vulnerable to Denial of Service via undo files having no size limit

This vulnerability is traded as CVE-2026-117346 since 10/27/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/27/2026 CVE reserved
10/30/2026 +3 days Advisory disclosed
10/30/2026 +0 days VulDB entry created
10/30/2026 +0 days VulDB entry last update

Sourcesinfo

Status: Not defined

CNA: MITRE
CVE: CVE-2026-117346 (🔒)

GCVE (CVE): GCVE-0-2026-117346
GCVE (VulDB): GCVE-100-429156

Entryinfo

Created: 10/30/2026 15:53
Changes: 10/30/2026 15:53 (50)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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