CVE-2026-88811

Rancher credentials disclosed to third-party hosts by the Rancher Manager meta proxy

publishedCWE-201

Missing filtering in the SUSE Rancher Manager meta proxy could cause passed in rancher credentials to be leaked to cloud providers. This affects SUSE Rancher 2.15.0 up to 2.15.3, 2.14.0 up to 2.14.7, 2.13.0 up to 2.13.11,

Technical severity9.1 criticalCVSS 3.1 · CNA: suse

Published2026-11-02Source updated 2026-11-03

Collected2026-11-033 attributed sources

Fixes and workarounds

Fix

github.com/rancher/rancher (go): GitHub reports patched versions 2.15.3. Check the advisory for the affected release branch.

Source: GitHub GHSA-x82x-2qj6-5rm2

Fix

github.com/rancher/rancher (go): GitHub reports patched versions 2.14.7. Check the advisory for the affected release branch.

Source: GitHub GHSA-x82x-2qj6-5rm2

Fix

github.com/rancher/rancher (go): GitHub reports patched versions 2.13.11. Check the advisory for the affected release branch.

Source: GitHub GHSA-x82x-2qj6-5rm2

Fix

github.com/rancher/rancher (go): GitHub reports patched versions 2.12.15. Check the advisory for the affected release branch.

Source: GitHub GHSA-x82x-2qj6-5rm2

Fix

github.com/rancher/rancher (go): GitHub reports patched versions 2.11.19. Check the advisory for the affected release branch.

Source: GitHub GHSA-x82x-2qj6-5rm2

Affected products and versions

Affected products, source version ranges and reporting authorities
Product	Versions	Authority
Rancher SUSE `Rancher`	≥ 2.15.0; < 2.15.3 (affected, semver) ≥ 2.14.0; < 2.14.7 (affected, semver) ≥ 2.13.0; < 2.13.11 (affected, semver) ≥ 2.12.0; < 2.12.15 (affected, semver) ≥ 2.11.0; < 2.11.19 (affected, semver) Other versions: unaffected	CNA: suse
github.com/rancher/rancher `github.com/rancher/rancher` go	>=2.15.0, <2.15.3 (affected, GitHub advisory range)	GitHub GHSA-x82x-2qj6-5rm2
github.com/rancher/rancher `github.com/rancher/rancher` go	>=2.14.0, <2.14.7 (affected, GitHub advisory range)	GitHub GHSA-x82x-2qj6-5rm2
github.com/rancher/rancher `github.com/rancher/rancher` go	>=2.13.0, <2.13.11 (affected, GitHub advisory range)	GitHub GHSA-x82x-2qj6-5rm2
github.com/rancher/rancher `github.com/rancher/rancher` go	>=2.12.0, <2.12.15 (affected, GitHub advisory range)	GitHub GHSA-x82x-2qj6-5rm2
github.com/rancher/rancher `github.com/rancher/rancher` go	>=2.11.0, <2.11.19 (affected, GitHub advisory range)	GitHub GHSA-x82x-2qj6-5rm2

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / score	Vector	Authority
3.1 / 9.1 critical	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`	CNA: suse
3.1 / 9.1 critical	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`	NVD: [email protected]

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

https://github.com/rancher/rancher/security/advisories/GHSA-x82x-2qj6-5rm2CNA: suse · vendor-advisory
https://github.com/rancher/rancher/security/advisories/GHSA-x82x-2qj6-5rm2[email protected]
https://github.com/rancher/rancher/security/advisories/GHSA-x82x-2qj6-5rm2GitHub Security Advisories · advisory

For agents and automation

Read public disclosures for free as Markdown or JSON. Compatible browsers also expose native WebMCP tools to search disclosures, read this page, and discover API access.

Use the ontology-linked Cyber API with x402 pay per request, or a Y2 Pro or Elite API key with the intel:cyber scope.

Get an API key Use x402 Connect an agent

Endpoints and access details

https://api.y2.dev/api/v2/cyber/cves
https://api.y2.dev/api/v2/cyber/cves/{cveId}

A workspace owner or admin can create a Pro or Elite API key. Send Authorization: Bearer <Y2_API_KEY> from your trusted agent runtime.

For x402, omit Authorization and read the HTTP 402 payment challenge before signing a retry. Public browser tools do not make payments.

Agent access JSON · OpenAPI · CVE API guide