High severity7.8NVD Advisory· Published Oct 7, 2021· Updated Jun 17, 2026

CVE-2021-26556

Description

When Octopus Server is installed using a custom folder location, folder ACLs are not set correctly and could lead to an unprivileged user using DLL side-loading to gain privileged access.

Affected products

Octopus/Serverllm-fuzzy2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: 0.9

Patches

Vulnerability mechanics

References

advisories.octopus.com/adv/2021-01---Local-privilege-escalation-in-Octopus-Server-%28CVE-2021-26556%29.1733296189.htmlnvd

News mentions

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