CVE-2026-124627

Vulnerability record

  • High 8.7

Description

In affected versions of Octopus Server, incorrect validation of the external identity linked to a newly registered user could result in that user receiving the LDAP-mapped team memberships and associated permissions of another user. This issue only affects instances with LDAP authentication enabled and LDAP groups mapped to Octopus teams.

Key facts

Published
12 Nov 2026
Last changed
12 Nov 2026
Assigned by
Octopus
EPSS
0.293% likely to be exploited in the next 30 days, higher than 22.182% of CVEs (scores for 15 Nov 2026)

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 8.7CVSS 4.0, Highfrom the CNA (Octopus)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
Octopus DeployOctopus Server
  • Default status: unaffected
  • 3.0.0 up to but excluding 2026.2.13526 (affected)
  • 2026.3.0 up to but excluding 2026.3.15926 (affected)

Timeline

  1. 12 Nov 2026 Published

Weakness

References