6.9
MEDIUM CVSS 4.0
CVE-2026-100251
Wormhole.app SSRF
Description

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.

INFO

Published Date :

Oct. 1, 2026, 8:17 p.m.

Last Modified :

Oct. 1, 2026, 8:37 p.m.

Remotely Exploit :

Yes !

Source :

9119a7d8-5eab-497f-8521-727c672e3725
Affected Products

The following products are affected by CVE-2026-100251 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 9119a7d8-5eab-497f-8521-727c672e3725
CVSS 3.1 MEDIUM MITRE-CVE
CVSS 3.1 MEDIUM 9119a7d8-5eab-497f-8521-727c672e3725
CVSS 4.0 MEDIUM 9119a7d8-5eab-497f-8521-727c672e3725
Solution
Update coturn configuration to properly restrict TCP relay peers.
  • Update coturn configuration.
  • Restrict TCP relay peers.
  • Restart the TURN server.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-100251.

URL Resource
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-275-04.json
https://wormhole.app/
https://www.cve.org/CVERecord?id=CVE-2026-100251
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-100251 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-100251 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-100251 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-100251 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 9119a7d8-5eab-497f-8521-727c672e3725

    Oct. 01, 2026

    Action Type Old Value New Value
    Added SSVC {'id': 'CVE-2026-100251', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-09-25T16:36:18.175866Z'}
    Added Tag exclusively-hosted-service
    Added Description 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.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
    Added CWE CWE-918
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/100xxx/CVE-2026-100251.json">CVE-2026-100251</a>
    Added Reference https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-275-04.json
    Added Reference https://wormhole.app/
    Added Reference https://www.cve.org/CVERecord?id=CVE-2026-100251
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.