CVE-2021-32565— HTTP Request Smuggling, content length with invalid charters
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2021-32565
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View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
HTTP Request Smuggling, content length with invalid charters
Source: NVD (National Vulnerability Database)
Vulnerability Description
Invalid values in the Content-Length header sent to Apache Traffic Server allows an attacker to smuggle requests. 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
HTTP请求的解释不一致性(HTTP请求私运)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Apache Traffic Server 环境问题漏洞
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存在安全漏洞，该漏洞源于发送给Apache Traffic Server的Content-Length报头中的无效值允许攻击者可利用该漏洞偷运请求。Apache Traffic Server 7.0.0 ~ 7.1.12、8.0.0 ~ 8.1.1、9.0.0 ~ 9.0.1。
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 | Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1 | - |
II. Public POCs for CVE-2021-32565
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-32565
请登录查看更多情报信息。
IV. Related Vulnerabilities
Same product: Apache Traffic Server
- CVE-2025-65114
Apache Traffic Server: Malformed chunked message body allows - CVE-2025-58136
Apache Traffic Server: A simple legitimate POST request caus - CVE-2025-31698
Apache Traffic Server: Client IP address from PROXY protocol - CVE-2025-49763
Apache Traffic Server: Remote DoS via memory exhaustion in E - CVE-2024-53868
Apache Traffic Server: Malformed chunked message body allows
Same vendor: Apache Software Foundation
- CVE-2026-39816
Apache NiFi: Missing Execute Code Required Permission on Tin - CVE-2026-25199
Apache CloudStack: Proxmox Extension Allows Unauthorized Cro - CVE-2026-25077
Apache CloudStack: Unauthenticated Command Injection in Dire - CVE-2025-69233
Apache CloudStack: Domain/account resources limits not honor - CVE-2025-66467
Apache CloudStack: MinIO policy remains intact on bucket del
Same weakness: CWE-444
- CVE-2026-40562
Gazelle versions through 0.49 for Perl allows HTTP Request S - CVE-2026-40561
Starlet versions through 0.31 for Perl allows HTTP Request S - CVE-2026-39805
CL.CL HTTP request smuggling via duplicate Content-Length in - CVE-2026-40560
Starman versions before 0.4018 for Perl allows HTTP Request - CVE-2026-41873
Pony Mail: Admin account takeover via request smuggling
V. Comments for CVE-2021-32565
No comments yet