CVE-2023-32198Published

Steve doesn’t verify a server’s certificate and is susceptible to man-in-the-middle (MitM) attacks

Collected exploitation and prediction evidence

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

cve-program · CVE-2023-32198

Published

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.

Source published: 15 Oct 2026 08:22:47 UTC
Source modified: 15 Oct 2026 19:58:21 UTC
Observed here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

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CVSS 3.1 · 8.0 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

euvd · EUVD-2023-60719

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Oct 15, 2026, 8:22:47 AM

dateUpdated: Oct 15, 2026, 7:58:21 PM

1 related source bulletins · separate from aliases

openSUSE-SU-2025:15059-1: govulncheck-vulndb-0.0.20250506T153719-1.1 on GA media

CVE-2019-11243 · CVE-2023-32198 · CVE-2024-22031 · CVE-2025-23390 · CVE-2025-32777 · CVE-2025-3879 · CVE-2025-4166 · CVE-2025-4210 · CVE-2025-46327 · CVE-2025-46342 · CVE-2025-46569 · CVE-2025-46599

Source published: Oct 15, 2026, 8:22:47 AM (timezone not stated)
Source modified: Oct 15, 2026, 7:58:21 PM (timezone not stated)
Observed here: 8 Nov 2026 01:10:17 UTC
Source terms: ENISA EUVD · source terms and attribution apply

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EUVD CVSS 3.1 · 8.0 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

nvd · CVE-2023-32198

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Awaiting Analysis

Weakness classifications: CWE-295

Original publisher date fields

published: 2026-10-15T09:17:13.847

lastModified: 2026-10-16T19:55:59.740

Source published: 15 Oct 2026 09:17:13 UTC
Source modified: 16 Oct 2026 19:55:59 UTC
Observed here: 24 Oct 2026 22:17:15 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

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CVSS 3.1 · [email protected] · Secondary · 8.0 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

osv · GHSA-95fc-g4gj-mqmx

Published

### Impact 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. For example, Rancher relies on Steve as a dependency for its user interface (UI) to proxy requests to Kubernetes clusters. Users who have the permission to create a service in Rancher’s local cluster can take over Rancher’s UI and display their own UI to gather sensitive information. This is only possible when the setting `ui-offline-preferred` is manually set to `remote` (by default Rancher sets it to `dynamic`). This enables further attacks such as cross-site scripting (XSS), or tampering the UI to collect passwords from other users etc. Please consult the associated [MITRE ATT&CK - Technique - Adversary-in-the-Middle](https://attack.mitre.org/techniques/T1557/) for further information about this category of attack. ### Patches Patched versions of Steve include releases `v0.2.1`, `v0.3.3`, `v0.4.4` and `v0.5.13`. This vulnerability is addressed by changing Steve to always verify a server’s certificate based on Go’s TLS settings. ### Workarounds If you can't upgrade to a fixed version, please make sure that you are only using Steve to connect to trusted servers. ### References If you have any questions or comments about this advisory: - Reach out to the [SUSE Rancher Security team](https://github.com/rancher/rancher/security/policy) for security related inquiries. - Open an issue in the [Rancher](https://github.com/rancher/rancher/issues/new/choose) repository. - Verify with our [support matrix](https://www.suse.com/suse-rancher/support-matrix/all-supported-versions/) and [product support lifecycle](https://www.suse.com/lifecycle/).

Source published: 25 Apr 2025 15:12:44 UTC
Source modified: 10 Sep 2026 03:50:23 UTC
Observed here: 24 Oct 2026 13:19:41 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

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CVSS_V3 · CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Publisher rating · HIGH

osv · GO-2025-3648

Published

Steve doesn’t verify a server’s certificate and is susceptible to man-in-the-middle (MitM) attacks in github.com/rancher/stev. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: github.com/rancher/steve from v0.3.0 before v0.3.3.

Source published: 5 May 2025 16:13:00 UTC
Source modified: 19 Jun 2026 12:44:20 UTC
Observed here: 24 Oct 2026 13:19:41 UTC
Source terms: OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · OSV · upstream source license applies. Source text is retained; field grouping and change labels are provided by ChangeIntel.