vulnerability / NVI-00017809 / Revision 1
NeuVector telemetry sender is vulnerable to MITM and DoS
GitHub lists this reviewed advisory for github.com/neuvector/neuvector. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.
This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.
01 / Meaning
Why it matters
Published affected context helps an owner decide what evidence to gather. This report has not examined your application.
8.6 high
GitHub source severity; exploitability and local consequence require separate evidence.
As of · GitHub Advisory Database
02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
github.com/neuvector/neuvector
source listed>= 0.0.0-20230727023453-1c4957d53911, < 0.0.0-20251020133207-084a437033b4
### Impact This vulnerability affects NeuVector deployments only when the `Report anonymous cluster data option` is enabled. When this option is enabled, NeuVector sends anonymous telemetry data to the telemetry server at `https://upgrades.neuvector-upgrade-responder.livestock.rancher.io`. In affected versions, NeuVector does not enforce TLS certificate verification when transmitting anonymous cluster data to the telemetry server. As a result, the communication channel is susceptible to man-in-the-middle (MITM) attacks, where an attacker could intercept or modify the transmitted data. Additionally, NeuVector loads the response of the telemetry server is loaded into memory without size limitation, which makes it vulnerable to a Denial of Service(DoS) attack. The patched version includes the following security improvements: - NeuVector now verifies the telemetry server’s `TLS certificate chain` and `hostname` during the handshake process. This ensures that all telemetry communications occur over a trusted and verified channel. - NeuVector limits the telemetry server’s response to `256 bytes`, mitigating the risk of memory exhaustion and DoS attacks. These security enhancements a
03 / Response
What to do next
- investigate
Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database
A fixed release is not deployment evidence.
Check current vendor support and compatibility. After making a change, verify the deployed build and relevant runtime conditions. Keep the evidence, owner and time. An updated lockfile alone does not prove what is running.
04 / Limits
What this report cannot establish
- Customer inventory, deployment, reachability and exploitation have not been inspected.
05 / Provenance
Sources you can inspect
Each assertion retains its source. Mirrored records may repeat one underlying publisher; additional links are not independent corroboration.
- GHSA-qqj3-g7mx-5p4w ↗
GitHub Advisory Database · vendor advisory
Observed . GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.
Public revision history
Only published revisions appear here. Routine fetches do not create a material-change event.
- Revision 1 ·
First indexed by Null; source disclosure date is shown separately.