CVE-2026-124627

HIGH
MEDIUM Priority: 0.03 BB Relevance: 67/100
Published: 2026-11-12 Modified: 2026-11-12 First seen: 2026-11-12 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: X
AT: None
VC: High
VI: High
VA: High

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.

Affected Software (2)

VendorProductVersion
Octopus Deploy Octopus Server 3.0.0 < 2026.2.13526
Octopus Deploy Octopus Server 2026.3.0 < 2026.3.15926

Bug Bounty Relevance

67 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

8.7 / 10.0 v4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.29%
Raw Score 0.002930
Percentile 22.2%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00293
2026-11-13
0.00293

Intelligence Sources

mitre ref →
nvd ref →