CVE-2023-28609
CWE-287Published: March 18, 2023· Updated: Jun 17, 2026
Official Description
api/auth.go in Ansible Semaphore before 2.8.89 mishandles authentication.
Risk Analysis
Ansible Semaphore versions prior to 2.8.89 contain an authentication flaw in api/auth.go. This critical issue could allow unauthorized access, potentially leading to full system compromise given the high CVSS score.
No public exploit is known, and the vulnerability is not in the CISA KEV catalog. It is remotely exploitable with low attack complexity.
Upgrade Ansible Semaphore to version 2.8.89 or later to resolve the authentication handling issue.
Technical Analysis
CVE-2023-28609 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (4)
Quick Facts
Related CVEs (CWE-287)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-28609 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts