CVE-2020-27155
If enabled, the websocket endpoint may allow an untrusted tentacle host to present itself as a trusted one.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.27%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in Octopus Deploy through 2020.4.4. If enabled, the websocket endpoint may allow an untrusted tentacle host to present itself as a trusted one.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 1.27% probability · 70th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- octopus/octopus deploy
- Source
- cve@mitre.org
EPSS 1.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/OctopusDeployThird Party Advisory
- https://github.com/OctopusDeploy/Issues/issues/6637Issue Tracking, Third Party Advisory
- https://github.com/OctopusDeploy/Issues/issues/6639Issue Tracking, Patch, Third Party Advisory
- https://github.com/OctopusDeploy/Issues/issues/6640Issue Tracking, Patch, Third Party Advisory
- https://github.com/OctopusDeployThird Party Advisory
- https://github.com/OctopusDeploy/Issues/issues/6637Issue Tracking, Third Party Advisory
- https://github.com/OctopusDeploy/Issues/issues/6639Issue Tracking, Patch, Third Party Advisory
- https://github.com/OctopusDeploy/Issues/issues/6640Issue Tracking, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.