Cleartext storage of sensitive information in Octopus Tentacle
Priority LOW 24CWE-312Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-312.
Summary
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
Why it matters now
EPSS 0.00185 8th percentileScored 2026-11-07
Fix Fixed Octopus Tentacle (Octopus Deploy): 6.1.1266
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Octopus Deploy | Octopus Tentacle | before 6.1.1266 | 6.1.1266 | Patch available | CNA |
- Octopus Tentacle VendorOctopus Deploy Affected before 6.1.1266 Fixed in 6.1.1266 Patch available CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:octopus:tentacle:*:*:*:*:*:*:*:* | before 6.1.1266 | Vulnerable | Octopus Deploy |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:octopus:tentacle:*:*:*:*:*:*:*:* Versions before 6.1.1266 Vulnerable ·Octopus Deploy
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
- Fix · CNA Octopus Tentacle (Octopus Deploy) Fixed in 6.1.1266
Timeline
- 2026-10-02 Threatist record created from CVE-2021-31821
- 2026-10-03 Alias added: GHSA-2986-5hcf-cm8g
References
More Octopus Deploy Tentacle vulnerabilities
- TI-2021-08281 Untrusted search path in Octopus Tentacle CVSS 3.1HIGH 7.8
- TI-2021-11819 Incorrect default permissions in Octopus Tentacle CVSS 3.1HIGH 7.8
- TI-2019-11610 In Octopus Tentacle versions 3.0.8 to 5.0.0, when a web request proxy is configured, an… CVSS 3.0MEDIUM 6.5
Sources
- CVE-2021-31821 · CVE Program
- CVE-2021-31821 · NVD
- FIRST EPSS
- GHSA-2986-5hcf-cm8g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences