What’s Vulnerable › Vulnerabilities

CVE-2021-31821

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-01-19 · updated 2026-06-17
• Weakness: CWE-312

Description

When the Windows Tentacle docker image starts up it logs all the commands that it runs along with the arguments, which writes the Octopus Server API key in plaintext. This does not affect the Linux Docker image

Affected products

• Octopus Deploy Octopus Tentacle: before 6.1.1266 — fixed in 6.1.1266

How to fix

Upgrade to a fixed version: Octopus Deploy Octopus Tentacle 6.1.1266. Check the vendor advisory for mitigations.

References

• https://advisories.octopus.com/post/2022/sa2022-01/
• https://advisories.octopus.com/post/2022/sa2022-01/

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