Wormhole App prior 2026-08-22 TURN Server access control

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.46

Summaryinfo

A vulnerability was found in Wormhole App Wormhole and classified as critical. Impacted is an unknown function of the component TURN Server. Executing a manipulation can lead to access control. This vulnerability is registered as CVE-2026-100251. It is possible to launch the attack remotely. No exploit is available. This product is a managed service, which means users themselves cannot handle vulnerability countermeasures. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Wormhole App Wormhole and classified as critical. This vulnerability affects an unknown code of the component TURN Server. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Wormhole.app as deployed before 2026-08-22 misconfigures the coturn TURN server and does not properly restrict TCP relay peers, allowing an unauthenticated attacker to access instance metadata or to source TCP connections from the Wormhole relay's IP.

This vulnerability was named CVE-2026-100251 since 09/25/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 2026-08-22 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Managed Service

  • yes

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (cisa-cg): 🔒

CVSSv2info

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

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
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

Status: 🔍

0-Day Time: 🔒

Upgrade: Wormhole 2026-08-22

Timelineinfo

09/25/2026 CVE reserved
10/01/2026 +6 days Advisory disclosed
10/01/2026 +0 days VulDB entry created
10/01/2026 +0 days VulDB entry last update

Sourcesinfo

Status: Confirmed

CVE: CVE-2026-100251 (🔒)
GCVE (CVE): GCVE-0-2026-100251
GCVE (VulDB): GCVE-100-412780

Entryinfo

Created: 10/01/2026 21:58
Changes: 10/01/2026 21:58 (74)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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