Get a demo Acunetix Website Security Scanner Get a demo
  • Product
  • Why Acunetix?
    • Solutions
      • INDUSTRIES
        • IT & Telecom
        • Government
        • Financial Services
        • Education
        • Healthcare
      • ROLES
        • CTO & CISO
        • Engineering Manager
        • Security Engineer
        • DevSecOps
    • Case Studies
    • Customers
    • Testimonials
  • Pricing
  • About Us
    • Our story
    • In the news
    • Careers
    • Contact
  • Resources
    • Blog
    • Webinars
    • White papers
    • Buyer’s guide
    • Partners
    • Documentation
  • Get a demo
WEB APPLICATION VULNERABILITIES Standard & Premium

Apache Traffic Server Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') Vulnerability (CVE-2021-27577)

Description

Incorrect handling of url fragment vulnerability of Apache Traffic Server allows an attacker to poison the cache. This issue affects Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1.

Remediation

References

CVE-2021-27577

Related Vulnerabilities

WordPress Plugin W3 Total Cache Multiple Vulnerabilities (0.9.4.1)

MySQL CVE-2024-21127 Vulnerability (CVE-2024-21127)

Nexus Repository Manager Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') Vulnerability (CVE-2019-15588)

Osclass Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') Vulnerability (CVE-2016-10751)

PostgreSQL Use of a Broken or Risky Cryptographic Algorithm Vulnerability (CVE-2020-25694)

Severity

High

Classification

CVE-2021-27577 CWE-444 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Tags

Missing Update Known Vulnerabilities

Take action and discover your vulnerabilities

Get a demo
Client: AWS
Client: Cognizant
Client: Garmin
Client: Airforce
Client: NASA
Client: American Express
Product Information
  • AcuSensor Technology
  • AcuMonitor Technology
  • Acunetix Integrations
  • Vulnerability Scanner
  • Support Plans
Use Cases
  • Penetration Testing Software
  • Website Security Scanner
  • External Vulnerability Scanner
  • Web Application Security
  • Vulnerability Management Software
Website Security
  • Cross-site Scripting
  • SQL Injection
  • Reflected XSS
  • CSRF Attacks
  • Directory Traversal
Learn More
  • White Papers
  • TLS Security
  • WordPress Security
  • Web Service Security
  • Prevent SQL Injection
Company
  • About Us
  • Customers
  • Become a Partner
  • Careers
  • Contact
Documentation
  • Case Studies
  • Documentation
  • Videos
  • Vulnerability Index
  • Webinars
  • Login
  • Invicti Subscription Services Agreement
  • Privacy Policy
  • Terms of Use
  • Sitemap
  • Find us on Facebook
  • Follow us on Twiter
  • Follow us on LinkedIn

© Acunetix 2025, by Invicti