CVE-2018-18850 in the critical feed json
In Octopus Deploy 2018.8.0 through 2018.9.x before 2018.9.1, an authenticated user with permission to modify deployment processes could upl…
published 2018-10-31 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-10564
- cvss
- 8.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 12.5%
- EPSS 12.5% chance of exploitation in 30 days, percentile 96%
- public exploits
- 1
- Metasploit
Summary
In Octopus Deploy 2018.8.0 through 2018.9.x before 2018.9.1, an authenticated user with permission to modify deployment processes could upload a maliciously crafted YAML configuration, potentially allowing for remote execution of arbitrary code, running in the same context as the Octopus Server (for self-hosted installations by default, SYSTEM).
Patch / fix
- octopus octopus_server 2018.9.1
Timeline
- First public exploit (Metasploit exploit/windows/http/octopusdeploy_deploy)
- Published
Exploit prediction
12.47% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit exploit/windows/http/octopusdeploy_deploy Octopus Deploy Authenticated Code Execution metasploit exploit, excellent rank, 2017-05-15
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 8.8 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C |
References
-
github.com
/OctopusDeploy/Issues/issues/5042
third-party-advisory
Sources
- CVE List CVE-2018-18850
- NVD CVE-2018-18850
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.