CVE-2026-88811 PUBLISHED

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

Assigner: suse
Reserved: 10.09.2026 Published: 02.11.2026 Updated: 03.11.2026

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,

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS Score: 9.1

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	SUSE
Product	Rancher
Versions	Default: unaffected affected from 2.15.0 to 2.15.3 (excl.) affected from 2.14.0 to 2.14.7 (excl.) affected from 2.13.0 to 2.13.11 (excl.) affected from 2.12.0 to 2.12.15 (excl.) affected from 2.11.0 to 2.11.19 (excl.)

Credits

Peter Matseykanets finder

References

https://github.com/rancher/rancher/security/advisories/GHSA-x82x-2qj6-5rm2

Problem Types

CWE-201 Insertion of sensitive information into sent data CWE

Impacts

CAPEC-22 Exploiting Trust in Client