---
id: CVE-2026-79577
title: >-
  An issue in the /cas/login component of sso-master v1.0.0 allows attackers to
  authenticate into the application without a password via sending a crafted
  POST request.
summary: >-
  An issue in the /cas/login component of sso-master v1.0.0 allows attackers to
  authenticate into the application without a password via sending a crafted
  POST request.
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-284
published: '2026-09-08'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T14:17:10.740'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-79577'
references:
  - url: 'https://github.com/fangtang7/CVE/blob/main/sso-master/sso.md'
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-14T13:30:37.326549Z'
epss: 0.00268
epssPercentile: 0.19233
ingestedAt: '2026-09-08T15:33:26.986Z'
---

## Overview

An issue in the /cas/login component of sso-master v1.0.0 allows attackers to authenticate into the application without a password via sending a crafted POST request.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.