HOMEVULNERABILITIESCVE-2021-36782
CRITICAL

CVE-2021-36782

CWE-312Published: September 7, 2022· Updated: Jun 17, 2026

9.9
CVSS v3.1

Official Description

A Cleartext Storage of Sensitive Information vulnerability in SUSE Rancher allows authenticated Cluster Owners, Cluster Members, Project Owners, Project Members and User Base to use the Kubernetes API to retrieve plaintext version of sensitive data. This issue affects: SUSE Rancher Rancher versions prior to 2.5.16; Rancher versions prior to 2.6.7.

NVD Source

Technical Analysis

CVE-2021-36782 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.9.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeChanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected Vendors & Products

SUSE1 product(s)
rancher
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (4)

https://bugzilla.suse.com/show_bug.cgi?id=1193988Exploit · Issue Tracking · Mitigation · Vendor Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1193988Exploit · Issue Tracking · Mitigation · Vendor Advisory

Quick Facts

CVE IDCVE-2021-36782
CVSS Score9.9 / 10
SeverityCRITICAL
WeaknessCWE-312
CISA KEVNo
Affected1 vendor(s)
PublishedSep 7, 2022

Related CVEs (CWE-312)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2021-36782 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.