CVE-2024-41671: twisted.web has disordered HTTP pipeline response
Vulnerability summary
CVE-2024-41671 is a high (CVSS 8.3) vulnerability in twisted. EPSS estimates a 0.86% chance of exploitation in the next 30 days, higher than 58.6% of scored vulnerabilities.
Severe, CVSS 8.3 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 9 · Related 6Timeline
- 29-07-2024PublishedVulnerability first disclosed.
- 03-11-2025Last modifiedVulnerability information updated.
Description
Twisted is an event-based framework for internet applications, supporting Python 3.6+. The HTTP 1.0 and 1.1 server provided by twisted.web could process pipelined HTTP requests out-of-order, possibly resulting in information disclosure. This vulnerability is fixed in 24.7.0rc1.
CVSS metrics
7 scores · 6 sources · 2 versions- OSV · PypiEcosystem advisory · calculated8.3HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
- OSV · UbuntuEcosystem advisory · calculated8.3HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
- OSV · DebianEcosystem advisory · calculated8.3HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
- NVDNIST8.3HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
- OSV · AlpineEcosystem advisory · calculated8.3HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
EPSS trend
Probability
0.86%
Chance of exploitation in the next 30 days
Percentile
59%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.86% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Alpine1 product
- synapse< 1.112.0-r0
Debian1 product
- twisted< 22.4.0-4+deb12u1 | < 24.7.0-1
Opensuse1 product
- matrix-synapse&distro=openSUSE Tumbleweed< 1.112.0-1.1
PyPI1 product
- twisted< 24.7.0rc1
Twisted1 product
- twisted≤ 24.3.0
Ubuntu1 product
- twisted< 24.3.0-1ubuntu0.1 | < 17.9.0-2ubuntu0.3+esm2 | < 18.9.0-11ubuntu0.20.04.5 | < 22.1.0-2ubuntu2.6
6 vendors · 6 products
References
16 links- github.com/twisted/twistedPACKAGE
- pypi.org/project/twistedPACKAGE