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NVD / CVE Program· CNA GitHub_M

CVE-2024-41671: twisted.web has disordered HTTP pipeline response

Noroxi assessment

Priority: Monitor (action score 33/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.86% (FIRST EPSS); higher than 58.7% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: twisted twisted 24.7.0rc1; azl3 python-twisted 22.10.0-3 on Azure Linux 3.0 22.10.0-3; azl3 python-twisted 22.10.0-4 on Azure Linux 3.0 22.10.0-3.

Low priority for now. Upgrade to twisted twisted 24.7.0rc1; azl3 python-twisted 22.10.0-3 on Azure Linux 3.0 22.10.0-3; azl3 python-twisted 22.10.0-4 on Azure Linux 3.0 22.10.0-3 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

HighCVSS 8.3 · v3.1—No exploit Fix available
Published
Jul 29, 2024
Updated
Jun 17, 2026
EPSS
0.8% · 58th percentile

Report tools

JSON

Action score

33

Monitor

Low priority for now.

CVSS
33 / 40 · 8.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.8%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
8.3
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2024-41671

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
twistedtwisted

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • twisted twisted

    • <= 24.3.0affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.20synapsebefore 1.112.0-r01.112.0-r0
Debian:11twistedbefore 20.3.0-7+deb11u220.3.0-7+deb11u2
Debian:12twistedbefore 22.4.0-4+deb12u122.4.0-4+deb12u1
Debian:13twistedbefore 24.7.0-124.7.0-1
openSUSE:Leap 15.5python-Twistedbefore 22.10.0-150400.5.23.122.10.0-150400.5.23.1
openSUSE:Leap 15.5python3-Twistedbefore 22.2.0-150400.21.122.2.0-150400.21.1
openSUSE:Tumbleweedmatrix-synapsebefore 1.112.0-1.11.112.0-1.1
openSUSE:Tumbleweedpython-Twistedbefore 24.3.0-2.124.3.0-2.1
PyPItwistedbefore 24.7.0rc124.7.0rc1
SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSSpython-Twistedbefore 19.10.0-150200.3.24.119.10.0-150200.3.24.1
SUSE:Linux Enterprise Module for Public Cloud 15 SP4python-Twistedbefore 22.10.0-150400.5.23.122.10.0-150400.5.23.1
SUSE:Linux Enterprise Module for Server Applications 15 SP5python3-Twistedbefore 22.2.0-150400.21.122.2.0-150400.21.1
SUSE:Linux Enterprise Module for Web and Scripting 12python-Twistedbefore 15.2.1-9.26.115.2.1-9.26.1

Same product

twisted: all records

Other highest-scoring records for the same primary product.

  • CVE-2020-10109In Twisted Web through 19.10.0, there was an HTTP request splitting vulnerability.
    40Plan
  • CVE-2020-10108In Twisted Web through 19.10.0, there was an HTTP request splitting vulnerability.
    40Plan
  • CVE-2026-115775Twisted: Unauthenticated Remote Denial of Service in the Twisted words domish XML Element Stream via an Unbounded Element Tree
    34Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2022-39348Oct 26, 2022 · Twisted vulnerable to NameVirtualHost Host header injection
    21Monitor
  • ← EarlierCVE-2023-46137Oct 25, 2023 · twisted.web has disordered HTTP pipeline response
    21Monitor
  • Later →CVE-2024-41810Jul 29, 2024 · HTML injection in HTTP redirect body
    24Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
twisted twisted24.7.0rc1 · descriptionVendor (CNA)
azl3 python-twisted 22.10.0-3 on Azure Linux 3.022.10.0-3 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 python-twisted 22.10.0-4 on Azure Linux 3.022.10.0-3 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 python-twisted 22.10.0-3 on CBL Mariner 2.022.10.0-3 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 python-twisted 22.10.0-4 on CBL Mariner 2.022.10.0-3 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 python-twisted 22.10.0-4 on CBL-Mariner 2.022.10.0-3 · CBL-Mariner ReleasesMicrosoft (MSRC)
alpine:synapse1.112.0-r0 · Alpine:v3.20Package registry (OSV)
debian:twisted22.4.0-4+deb12u1 · Debian:12Package registry (OSV)
opensuse:matrix-synapse1.112.0-1.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:python-Twisted22.10.0-150400.5.23.1 · openSUSE:Leap 15.5Package registry (OSV)
opensuse:python3-Twisted22.2.0-150400.21.1 · openSUSE:Leap 15.5Package registry (OSV)
PyPI:twisted24.7.0rc1Package registry (OSV)
suse:python-Twisted15.2.1-9.26.1 · SUSE:Linux Enterprise Module for Web and Scripting 12Package registry (OSV)
suse:python-Twisted22.10.0-150400.5.23.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP4Package registry (OSV)
suse:python3-Twisted22.2.0-150400.21.1 · SUSE:Linux Enterprise Module for Server Applications 15 SP5Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2023-46137278 days aparttwisted.web has disordered HTTP pipeline response
    21Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
low · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality impact
Low
Integrity impact
Low
Availability impact
Low

Weakness class (CWE)

CWE-444 · Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

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References

Show all references (4 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records