CVE-2026-8296 PUBLISHED

Assigner: Octopus
Reserved: 11.05.2026 Published: 19.06.2026 Updated: 19.06.2026

In affected versions of Octopus Server with certain access levels it was possible to embed a Cross-Site Scripting Payload via artifacts.

CVSS Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 5.6

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	High	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	High
User Interaction	Active

CVSS 4.0

Vendor	Octopus Deploy
Product	Octopus Server
Versions	Default: unaffected affected from 2023.0.0 to 2025.4.10678 (excl.) affected from 2026.1.0 to 2026.1.11451 (excl.) affected from 2026.2.0 to 2026.2.13114 (excl.)