HOMEVULNERABILITIESCVE-2023-28609
CRITICAL

CVE-2023-28609

CWE-287Published: March 18, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

api/auth.go in Ansible Semaphore before 2.8.89 mishandles authentication.

NVD Source

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.

Recommended Action

Upgrade Ansible Semaphore to version 2.8.89 or later to resolve the authentication handling issue.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

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

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

ansible-semaphore1 product(s)
ansible semaphore
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (4)

Quick Facts

CVE IDCVE-2023-28609
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-287
CISA KEVNo
Affected1 vendor(s)
PublishedMar 18, 2023

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
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.