CVE-2026-97665
Nexus Repository 3 - Missing Authorization on NuGet Symbol Package Upload
Description
A missing authorization check in Nexus Repository 3's NuGet Components API upload path allows an account holding only repository read and browse privileges to upload and persist NuGet symbol packages (.snupkg) to a hosted repository, bypassing the write-permission check enforced for ordinary package uploads. Exploitation requires a hosted NuGet repository with Symbol Server enabled. If anonymous access is enabled, the built-in anonymous user holds read and browse privileges across all repositories by default, so this precondition can also be met without an authenticated account.
INFO
Published Date :
Oct. 15, 2026, 4:18 p.m.
Last Modified :
Oct. 15, 2026, 5:17 p.m.
Remotely Exploit :
Yes !
Source :
103e4ec9-0a87-450b-af77-479448ddef11
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | HIGH | 103e4ec9-0a87-450b-af77-479448ddef11 | ||||
| CVSS 4.0 | HIGH | 103e4ec9-0a87-450b-af77-479448ddef11 |
Solution
- Update Nexus Repository to the latest version.
- Review and restrict API access permissions.
- Disable anonymous access if not required.
- Enable write access control for all repositories.
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-2026-97665.
| URL | Resource |
|---|---|
| https://help.sonatype.com/en/sonatype-nexus-repository-3-97-0-release-notes.html | |
| https://support.sonatype.com/hc/en-us/articles/55793090807827/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-97665 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-2026-97665
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-2026-97665 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-97665 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.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 15, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-97665', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-10-15T16:11:27.450391Z'} -
New CVE Received by 103e4ec9-0a87-450b-af77-479448ddef11
Oct. 15, 2026
Action Type Old Value New Value Added Description A missing authorization check in Nexus Repository 3's NuGet Components API upload path allows an account holding only repository read and browse privileges to upload and persist NuGet symbol packages (.snupkg) to a hosted repository, bypassing the write-permission check enforced for ordinary package uploads. Exploitation requires a hosted NuGet repository with Symbol Server enabled. If anonymous access is enabled, the built-in anonymous user holds read and browse privileges across all repositories by default, so this precondition can also be met without an authenticated account. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/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 CWE CWE-862 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/97xxx/CVE-2026-97665.json">CVE-2026-97665</a> Added Reference https://help.sonatype.com/en/sonatype-nexus-repository-3-97-0-release-notes.html Added Reference https://support.sonatype.com/hc/en-us/articles/55793090807827/