Vulnerability · Published Oct 15, 2026 · Assigned by suse
CVE-2023-32198Steve doesn’t verify a server’s certificate and is susceptible to man-in-the-middle (MitM) attacks
High 8.0
In plain English
A high-severity improper certificate validation in steve from SUSE. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.0High
Exploit odds (30 days)0.3%top 73.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A vulnerability has been identified in Steve where by default it was using an insecure option that did not validate the certificate presented by the remote server while performing a TLS connection. This could allow the execution of a man-in-the-middle (MitM) attack against services using Steve.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/rancher/steve | 0.2.1 | GHSA-95fc-g4gj-mqmx |
| Go | github.com/rancher/steve | 0.3.3 | GHSA-95fc-g4gj-mqmx |
| Go | github.com/rancher/steve | 0.4.4 | GHSA-95fc-g4gj-mqmx |
| Go | github.com/rancher/steve | 0.5.13 | GHSA-95fc-g4gj-mqmx |
| Go | github.com/rancher/steve | no fix listed | GO-2025-3648 |
| Go | github.com/rancher/steve | 0.2.1, 0.4.4, 0.5.13 | GO-2025-3648 |
Affected products (as reported)
Weakness: CWE-295 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H