CVE-2024-58384: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') in tornadoweb tornado
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.
AI Analysis
Technical Summary
Tornado versions prior to 6.4.1 contain a CRLF injection vulnerability in the CurlAsyncHTTPClient module. This flaw arises because the component does not properly reject carriage return (CR) and line feed (LF) characters in HTTP request headers. Exploiting this vulnerability, an attacker can inject CRLF sequences into header values, which may allow them to insert arbitrary HTTP headers or construct entirely new HTTP requests, leading to HTTP request/response splitting attacks.
Potential Impact
Successful exploitation could allow an attacker to manipulate HTTP headers by injecting arbitrary headers or crafting new HTTP requests. This can lead to security issues such as cache poisoning, cross-site scripting (XSS), or other HTTP header injection related attacks. The CVSS score of 6.3 indicates a medium severity impact with network attack vector, high attack complexity, and partial impacts on confidentiality, integrity, and availability.
Mitigation Recommendations
A fix is available in Tornado version 6.4.1. Users should upgrade to version 6.4.1 or later to remediate this vulnerability. No additional mitigation steps are specified beyond applying the official patch.
CVE-2024-58384: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') in tornadoweb tornado
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.
CVSS v4.0
Score 6.3medium
Affected software
tornadoweb
tornado
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Tornado versions prior to 6.4.1 contain a CRLF injection vulnerability in the CurlAsyncHTTPClient module. This flaw arises because the component does not properly reject carriage return (CR) and line feed (LF) characters in HTTP request headers. Exploiting this vulnerability, an attacker can inject CRLF sequences into header values, which may allow them to insert arbitrary HTTP headers or construct entirely new HTTP requests, leading to HTTP request/response splitting attacks.
Potential Impact
Successful exploitation could allow an attacker to manipulate HTTP headers by injecting arbitrary headers or crafting new HTTP requests. This can lead to security issues such as cache poisoning, cross-site scripting (XSS), or other HTTP header injection related attacks. The CVSS score of 6.3 indicates a medium severity impact with network attack vector, high attack complexity, and partial impacts on confidentiality, integrity, and availability.
Mitigation Recommendations
A fix is available in Tornado version 6.4.1. Users should upgrade to version 6.4.1 or later to remediate this vulnerability. No additional mitigation steps are specified beyond applying the official patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-16T13:02:14.691Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aa9651655bf5e2cf502e92a
Added to database: 09/15/2026, 15:32:38 UTC
Last enriched: 09/15/2026, 16:17:23 UTC
Last updated: 09/15/2026, 22:11:32 UTC
Views: 3
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.