CVE-2023-46136 is a denial-of-service vulnerability affecting Werkzeug, a WSGI web application library, specifically versions prior to 3.0.1. An unauthenticated attacker can exploit this by sending specially crafted multipart data, starting with CR or LF characters followed by a large amount of data, causing excessive CPU usage as the server attempts to parse the growing buffer. This can lead to worker processes becoming unresponsive and blocking legitimate requests. While rated as High severity (CVSS 7.5), there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.3.8CPE matchmatch criteria | cpe:2.3:a:palletsprojects:werkzeug:*:*:*:*:*:*:*:* | ||
3.0.0CPE matchmatch criteria | cpe:2.3:a:palletsprojects:werkzeug:3.0.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
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.
CVE-2023-46136
Jun 11, 2024Werkzeug DoS: High resource usage when parsing multipart/form-data containing a large part with CR/LF character at the beginning
Oct 25, 2023python-werkzeug: high resource consumption leading to denial of service
Oct 25, 2023Werkzeug vulnerable to high resource usage when parsing multipart/form-data containing a large part with CR/LF character at the beginning
Oct 10, 2023