CVE-2026-31983
Missing authentication in SSH keys synchronization endpoint in Guardian/CMC before 26.2.0
Description
A Missing Authentication vulnerability was discovered in the SSH keys synchronization endpoint. An unauthenticated attacker can send a request to the SSH keys synchronization endpoint and obtain the list of users that have uploaded their public SSH keys, their groups, and the uploaded public SSH keys.
INFO
Published Date :
July 9, 2026, 8:16 a.m.
Last Modified :
July 9, 2026, 8:16 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-31983
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.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | bec8025f-a851-46e5-b3a3-058e6b0aa23c | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | bec8025f-a851-46e5-b3a3-058e6b0aa23c | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Implement authentication checks for the endpoint.
- Ensure only authorized users can access SSH keys.
- Review endpoint access controls.
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-2026-31983.
| URL | Resource |
|---|---|
| https://security.nozominetworks.com/NN-2026:10-01 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-31983 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-2026-31983
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-2026-31983 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-31983 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 [email protected]
Jul. 09, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Nozomi Networks', 'product': 'Guardian', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '26.2.0', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Nozomi Networks', 'product': 'CMC', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '26.2.0', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] Added Description A Missing Authentication vulnerability was discovered in the SSH keys synchronization endpoint. An unauthenticated attacker can send a request to the SSH keys synchronization endpoint and obtain the list of users that have uploaded their public SSH keys, their groups, and the uploaded public SSH keys. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/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:N/A:N Added CWE CWE-306 Added Reference https://security.nozominetworks.com/NN-2026:10-01