CVE-2026-3236 PUBLISHED

Assigner: Octopus
Reserved: 26.02.2026 Published: 05.03.2026 Updated: 05.03.2026

In affected versions of Octopus Server it was possible to create a new API key from an existing access token resulting in the new API key having a lifetime exceeding the original API key used to mint the access token.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CVSS Score: 2.3

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

CVSS 4.0

Product Status

Vendor	Octopus Deploy
Product	Octopus Server
Versions	Default: unaffected affected from 2023.0.0 to 2025.3.14761 (excl.) affected from 2025.4.0 to 2025.4.10409 (excl.)

Credits

This vulnerability was found by nguyennb finder

References

https://advisories.octopus.com/post/2026/sa2026-02

Problem Types

CWE-863 Incorrect Authorization CWE