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CVE-2024-58384— Tornado before 6.4.1 CRLF Injection via CurlAsyncHTTPClient

Quick assessment

Affected

tornadoweb tornado

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.

Tornado 6.4.1 之前的版本中，CurlAsyncHTTPClient 存在 CRLF 注入漏洞，该漏洞未能拒绝请求头中的回车符（\r）和换行符（\n）。攻击者可以利用此漏洞在请求头的值中注入 CRLF 序列，从而注入任意头部信息，或构造全新的 HTTP 请求。

CVSS 5.4 · Medium Updated Sep 15, 2026

Possible ATT&CK Techniques 2 AI

T1011 · Exfiltration Over Other Network Medium T1557 · Adversary-in-the-Middle

Affected Version Matrix 2

Vendor	Product	Version Range	Status
tornadoweb	tornado	`< 6.4.1`	affected
		`6.4.1`	unaffected

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Vulnerability Information

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Vulnerability Title

Tornado before 6.4.1 CRLF Injection via CurlAsyncHTTPClient

Source: CVE Program / CVE List V5

Vulnerability Description

Tornado before 6.4.1 contains a CRLF injection vulnerability in CurlAsyncHTTPClient that fails to reject carriage return and line feed characters in request headers. Attackers can inject CRLF sequences into header values to inject arbitrary headers or construct entirely new HTTP requests.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

Source: CVE Program / CVE List V5

Vulnerability Type

HTTP头部中CRLF序列转义处理不恰当(HTTP响应分割)

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
tornadoweb	tornado	0 ~ 6.4.1	-

II. Public POCs for CVE-2024-58384

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2024-58384

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Vendor Advisories for CVE-2024-58384 (2)

🔗 CRLF injection in CurlAsyncHTTPClient headers · Advisory · tornadoweb/tornado · GitHub Read full article vendor-advisory
🔗 Tornado before 6.4.1 CRLF Injection via CurlAsyncHTTPClient | Advisories | VulnCheck third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2024-58384

Same Patch Batch · tornadoweb · 2026-09-15 · 6 CVEs total

CVE-2023-54397	7.5 HIGH	Tornado before 6.3.3 HTTP Request Smuggling via Content-Length
CVE-2026-91990	7.5 HIGH	Tornado before 6.5.8 Memory Amplification DoS via multipart
CVE-2024-14029	7.5 HIGH	Tornado before 6.4.1 HTTP Request Smuggling via Transfer-Encoding
CVE-2026-91992	5.9 MEDIUM	Tornado before 6.5.7 Credential Leak via Handle Reuse
CVE-2026-91991	5.4 MEDIUM	Tornado before 6.5.8 Cookie Attribute Injection via Capitalized kwargs

IV. Related Vulnerabilities

Same product: tornado

Same vendor: tornadoweb

Same weakness: CWE-113

V. Comments for CVE-2024-58384

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Goal Reached Thanks to every supporter — we hit 100%!

CVE-2024-58384— Tornado before 6.4.1 CRLF Injection via CurlAsyncHTTPClient

Quick assessment

Possible ATT&CK Techniques 2 AI

Affected Version Matrix 2

I. Basic Information for CVE-2024-58384

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2024-58384

III. Intelligence Information for CVE-2024-58384

Vendor Advisories for CVE-2024-58384 (2)

Same Patch Batch · tornadoweb · 2026-09-15 · 6 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2024-58384

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