CVE-2021-36780

8.1 highEPSS 0.5%

High (8.1) in linuxfoundation longhorn. EPSS 0.5% chance of exploitation in the next 30 days.

A Missing Authentication for Critical Function vulnerability in longhorn of SUSE Longhorn allows attackers to connect to a longhorn-engine replica instance granting it the ability to read and write data to and from a replica that they should not have access to. This issue affects: SUSE Longhorn longhorn versions prior to 1.1.3; longhorn versions prior to 1.2.3v.

Severity

CVSS 3.1

8.1 high

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 40% of CVEs (scores of 2026-10-31)
CWE: CWE-306
Published: 2021-12-17
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

linuxfoundation:longhorn

References

https://bugzilla.suse.com/show_bug.cgi?id=1191819
https://github.com/longhorn/longhorn/security/advisories/GHSA-g358-m2wp-mhhx
https://bugzilla.suse.com/show_bug.cgi?id=1191819
https://github.com/longhorn/longhorn/security/advisories/GHSA-g358-m2wp-mhhx

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