CVE-2026-124628 Privilege escalation in Octopus Server
Octopus Server users can edit their own LDAP identity despite disabled self-service editing, joining external LDAP teams and possibly gaining admin rights.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Harmful if only installed
- No
- Needs a specific call
- No
- Fix
- None listed
What is CVE-2026-124628?
CVE-2026-124628 is a high-severity privilege escalation vulnerability in Octopus Server, published on 12 Nov 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-863
Which versions are affected by CVE-2026-124628?
Only installations with a non-default setting turned on are exposed.
How do I fix CVE-2026-124628?
No fix has been published for CVE-2026-124628 yet. Limit exposure of the affected software until one is available.
Upgrade, and run services with the fewest rights they need. More about Privilege escalation.
Is CVE-2026-124628 being exploited?
There is no known exploitation of CVE-2026-124628 in the wild and no public exploit code.
Sources
Also known as GHSA-35xw-x954-7fwr.