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CVE-2026-124628 octopus deploy octopus server: Incorrect Authorization

8.7 highEPSS 0.2%

High (8.7) in octopus deploy octopus server. EPSS 0.2% estimated probability of exploitation activity in the next 30 days.

On this page
In affected versions of Octopus Server, incorrect validation of changes a user made to their own LDAP identity allowed them to edit that identity even when an Administrator had disabled self-service identity editing. This could result in the user gaining membership of teams mapped to external LDAP groups they do not belong to, and potentially escalating to full administrative privileges if any of those teams are privileged.

Severity

CVSS 4.0

8.7 high
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
EPSS
0.2% estimated probability of exploitation activity in the next 30 days; 11th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CWE
CWE-863 Incorrect Authorization
OWASP Top 10
A01:2025 Broken Access Control
Published
Modified
Assigned by
Octopus (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

  • octopus deploy:octopus server

Versions

From the CNA's record in the CVE List.

ProductAffected
Octopus Deploy Octopus Serverfrom 2018.3.0 before 2026.2.13526
Octopus Deploy Octopus Serverfrom 2026.3.0 before 2026.3.15936

References

Check your stackJSON