CVE-2024-41671: Scrapy · twisted.web has disordered HTTP pipeline response
Affects scrapySource GCVE Database
Not known to be exploited · CVSS 8.3 High : upgrade to 2.11.2_3 soon.
Data as of 1 Nov 2026, 22:57 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 8.3 |
|---|
- EPSS
- 0.8% chance of exploitation in 30 days – higher than 58% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.11.2_3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 29 Jul 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 1 Nov 2026.
What to do
Upgrade scrapy to 2.11.2_3.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Homebrewscrapypkg:brew/scrapyOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available for this vulnerability. Users should upgrade Scrapy to version 2.11.2_3 or later where the issue is fixed. Until patched, avoid deploying twisted.web HTTP servers behind reverse proxies that use connection pooling to reduce the risk of information leakage. Check the official Twisted security advisory GHSA-xc8x-vp79-p3wm for detailed remediation instructions.
Description
The twisted.web HTTP server in Scrapy versions 2.9.0 up to but not including 2.11.2_3 can process HTTP pipelined requests out-of-order. This behavior may lead to information disclosure, especially when twisted.web servers are deployed behind reverse proxies with connection pooling. The issue has a high severity with a CVSS score of 8.3 and affects HTTP 1.0 and 1.1 pipelined requests.
References
- github.com/twisted/twisted/security/advisories/GHSA-c8m8-j448-xjx7 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2024-41671 (opens in a new tab)
- github.com/twisted/twisted/commit/046a164f89a0f08d3239ecebd750360f8914df33 (opens in a new tab)
- github.com/twisted/twisted/commit/4a930de12fb67e88fefcb8822104152f42b27abc (opens in a new tab)
- github.com/twisted/twisted (opens in a new tab)
- lists.debian.org/debian-lts-announce/2024/11/msg00028.html (opens in a new tab)
- vicarius.io/vsociety/posts/disordered-http-pipeline-in-twistedweb-cve-2024-4167 (opens in a new tab)