CVE-2024-49767: Werkzeug is a Web Server Gateway Interface web application library

Q: How do I fix CVE-2024-49767?

quart: upgrade to 0.19.7; werkzeug: upgrade to 3.0.6. Exact commands for each OS are on this page.

Q: Is CVE-2024-49767 being exploited?

CVE-2024-49767 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-49767 affect?

CVE-2024-49767 affects quart, werkzeug. Severity is high (CVSS 7.5). Werkzeug is a Web Server Gateway Interface web application library. Applications using `werkzeug.formparser.MultiPartParser` corresponding to a version of Werkzeug prior to 3.0.6 to parse `multipart/form-data` requests (e.g. all flask appli

Q: How urgent is CVE-2024-49767?

Priority 48/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADEUPGRADE

CVE-2024-49767 is a high-severity flaw (CVSS 7.5) affecting quart, werkzeug. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Werkzeug is a Web Server Gateway Interface web application library. Applications using `werkzeug.formparser.MultiPartParser` corresponding to a version of Werkzeug prior to 3.0.6 to parse `multipart/form-data` requests (e.g. all flask applications) are vulnerable to a relatively simple but effective resource exhaustion (denial of service) attack. A specifically crafted form submission request can cause the parser to allocate and block 3 to 8 time

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.1% (top 35%)
CISA exploited list	No
Weakness	CWE-400, CWE-770
Published	2024-10-25
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: palletsprojects

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-10-25 20:15 UTCPublished CVE record published
2026-06-17 08:00 UTCUpdated Record last modified

palletsprojects quart UPGRADE

Affected: < 0.19.7

Fixed in: 0.19.7

Safe to downgrade to: no unaffected older release

1. Check installed version

pip show quart

2. UPGRADE to 0.19.7

pip install --upgrade "quart>=0.19.7"

palletsprojects werkzeug UPGRADE

Affected: < 3.0.6

Fixed in: 3.0.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy werkzeug || rpm -q werkzeug || werkzeug --version

2. UPGRADE to 3.0.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade werkzeug

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade werkzeug

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-49767?

quart: upgrade to 0.19.7; werkzeug: upgrade to 3.0.6. Exact commands for each OS are on this page.

Is CVE-2024-49767 being exploited?

CVE-2024-49767 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-49767 affect?

CVE-2024-49767 affects quart, werkzeug. Severity is high (CVSS 7.5). Werkzeug is a Web Server Gateway Interface web application library. Applications using `werkzeug.formparser.MultiPartParser` corresponding to a version of Werkzeug prior to 3.0.6 to parse `multipart/form-data` requests (e.g. all flask appli

How urgent is CVE-2024-49767?

Priority 48/100. High severity; Remotely exploitable, no login, no user action

Software pages

Flask vulnerabilities

References

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