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CVE-2024-49769

21
FAUCET Score

CVE-2024-49769 describes a denial-of-service vulnerability in Waitress, a Python Web Server Gateway Interface server. This flaw allows a remote attacker to exhaust available sockets by prematurely closing connections, leading to a busy-loop and rendering the server unresponsive. With a CVSS score of 7.5 (HIGH), the vulnerability is easily exploitable over the network with low complexity, resulting in high availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.0.1CPE matchmatch criteria
cpe:2.3:a:agendaless:waitress:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.39%
Probability of exploitation in next 30 days
EPSS Percentile
69.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0139 is in the 50th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (14)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: azl3 python-waitress 3.0.1-1 on Azure Linux 3.0Fixed in: 3.0.1-1
microsoftpatch availablevia msrc
Product: 17597-17084Fixed in: 3.0.1-1
pippatch availablevia ghsa
Product: waitressFixed in: 3.0.1
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.14Fixed in: python-waitress-0:3.0.1-1.el9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.15Fixed in: python-waitress-0:3.0.1-1.el9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.16Fixed in: python-waitress-0:3.0.1-1.el9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.17Fixed in: python-waitress-0:3.0.1-1.el9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 16.2Fixed in: python-waitress-0:2.0.0-4.el8ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 17.1 for RHEL 8Fixed in: python-waitress-0:2.0.0-4.el8ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 17.1 for RHEL 9Fixed in: python-waitress-0:2.0.0-4.el9ost
View patch
redhatpatch availablevia redhat_api
Product: Ironic content for Red Hat OpenShift Container Platform 4.12Fixed in: python-waitress-0:3.0.1-1.el9
View patch
redhatpatch availablevia redhat_api
Product: Ironic content for Red Hat OpenShift Container Platform 4.13Fixed in: python-waitress-0:3.0.1-1.el9
View patch
redhatno patchvia redhat_api
Product: Red Hat Openshift Container Storage 4Fixed in: python-waitress

Vendor Advisories (3)

pipGHSA-3f84-rpwh-47g6high

Waitress vulnerable to DoS leading to high CPU usage/resource exhaustion

Oct 29, 2024
redhatCVE-2024-49769Important

waitress: Waitress has a denial of service leading to high CPU usage/resource exhaustion

Oct 29, 2024
microsoft2024-Oct/CVE-2024-49769Important

Waitress has a denial of service leading to high CPU usage/resource exhaustion

Oct 8, 2024

References

lists.debian.org / debian-lts-announce/2024/11/msg00012.html
github.com / Pylons/waitress/commit/1ae4e894c9f76543bee06584001583fc6fa8c95c
Patch
github.com / Pylons/waitress/issues/418
Issue Tracking
github.com / Pylons/waitress/pull/435
Patch
github.com / Pylons/waitress/security/advisories/GHSA-3f84-rpwh-47g6
Vendor Advisory