High
CVE-2026-101169
In affected versions of Octopus Server, an authenticated user with permissions to edit an Environment or Project can set specifically crafted JSON content for the object. Insecure deserialization of this content allows the user to execute arbitrary code in the Octopus Server process.
Announced Group revision 1
Original source ↗CVE-2026-101169
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-101169
Octopus Server
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Octopus Deploy",
"product": "Octopus Server",
"versions": [
{
"status": "affected",
"version": "2019.4.1",
"lessThan": "2026.1.11781",
"versionType": "custom"
},
{
"status": "affected",
"version": "2026.2.0",
"lessThan": "2026.2.13441",
"versionType": "custom"
},
{
"status": "affected",
"version": "2026.3.0",
"lessThan": "2026.3.15829",
"versionType": "custom"
}
],
"platforms": [
"Windows",
"Linux"
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-101169
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #3830 · Revision 1
- Added to Heist Feed
- Publisher date