CVE-2021-44759— Improper authentication vulnerability in TLS origin verification
Quick assessment
Affected
Apache Software Foundation Apache Traffic Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Apache Traffic Server（ATS）是美国阿帕奇（Apache）基金会的一套可扩展的HTTP代理和缓存服务器。 Apache Traffic Server 8.0.0 到 8.1.0版本存在安全漏洞，该漏洞源于应用中的TLS源中的不正确的身份验证。攻击者利用该漏洞能进行中间人攻击。
Possible ATT&CK Techniques 1 AI
T1557 · Adversary-in-the-Middle
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2021-44759
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Improper authentication vulnerability in TLS origin verification
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Authentication vulnerability in TLS origin validation of Apache Traffic Server allows an attacker to create a man in the middle attack. This issue affects Apache Traffic Server 8.0.0 to 8.1.0.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Traffic Server 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Traffic Server（ATS）是美国阿帕奇（Apache）基金会的一套可扩展的HTTP代理和缓存服务器。 Apache Traffic Server 8.0.0 到 8.1.0版本存在安全漏洞，该漏洞源于应用中的TLS源中的不正确的身份验证。攻击者利用该漏洞能进行中间人攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Apache Software Foundation | Apache Traffic Server | 8.0.0 to 8.1.0 | - |
|
II. Public POCs for CVE-2021-44759
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-44759
请登录查看更多情报信息。
Vendor Advisories for CVE-2021-44759 (1)
Mailing List Discussions for CVE-2021-44759 (1)
-
https://lists.apache.org/thread/zblwzcfs9ryhwjr89wz4osw55pxm6dx6 x_refsource_MISC
IV. Related Vulnerabilities
Same product: Apache Traffic Server
-
CVE-2026-65100
Apache Traffic Server: HPACK encoder desynchronizes from the -
CVE-2026-58189
Apache Traffic Server: Plugins resetting the redirect counte -
CVE-2026-58188
Apache Traffic Server: Memory-safety and limit-bypass errors -
CVE-2026-58187
Apache Traffic Server: Multiplexer plugin chunk decoder enab -
CVE-2026-58186
Apache Traffic Server: webp_transform plugin decodes unsafel
Same vendor: Apache Software Foundation
-
CVE-2026-70410
Apache Calcite Avatica: Unrestricted class initialization wh -
CVE-2026-94301
Apache MINA: CVE-2026-47065 resolveProxyClass fix missing fr -
CVE-2026-86473
Apache Airflow: Logout ignores a presented Authorization bea -
CVE-2026-75158
Apache Airflow: Assets events API returns asset events for e -
CVE-2026-82355
Apache Airflow: Session cookie silently overrides explicit A
Same weakness: CWE-287
-
CVE-2026-77244
[mcp-atlassian] Authentication bypass in HTTP transport: Atl -
CVE-2026-65121
CVE-2026-65121 -
CVE-2026-95271
dgtlmoon changedetection.io Authentication Hook flask_app.py -
CVE-2026-61687
hatchet - Unauthenticated OAuth state CSRF / login-CSRF via -
CVE-2026-61630
nginx ignition has TOTP Reuse During Validity Window
V. Comments for CVE-2021-44759
No comments yet