# CVE-2026-124628: CVE-2026-124628

Status: published. Published: 2026-11-12. Updated: 2026-11-12.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Octopus Deploy / Octopus Server: ≥ 2018.3.0; < 2026.2.13526 (affected, custom); ≥ 2026.3.0; < 2026.3.15936 (affected, custom). Source: CNA: Octopus; platforms: Windows, Linux

## Severity and prioritization

- 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; source: CNA: Octopus

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-863

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://advisories.octopus.com/post/2026/sa2026-24 (CNA: Octopus)

## Provenance

- CNA: Octopus: https://www.cve.org/CVERecord?id=CVE-2026-124628; retrieved 2026-11-12; source updated 2026-11-12

Revision: 9be431a6712301f490d237b93cee6df2bb1824ca69f8c72c3da6345bb926e345

Canonical: https://y2.dev/cve/CVE-2026-124628

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