CVE-2021-31999highCWE-807

CVE-2021-31999: high-severity vulnerability in Rancher

Rancher: Privilege escalation vulnerability via malicious Connection header

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.8epss 1.1%
A Reliance on Untrusted Inputs in a Security Decision vulnerability in Rancher allows users in the cluster to act as others users in the cluster by forging the "Impersonate-User" or "Impersonate-Group" headers. This issue affects: Rancher versions prior to 2.5.9. Rancher versions prior to 2.4.16.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Rancher · RancherRancher · SUSE Linux Enterprise Server 15
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