CVE-2022-29361
Improper parsing of HTTP requests in Pallets Werkzeug v2.1.0 and below allows attackers to perform HTTP Request Smuggling using a crafted HTTP request with multiple requests included inside the body.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.07%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Improper parsing of HTTP requests in Pallets Werkzeug v2.1.0 and below allows attackers to perform HTTP Request Smuggling using a crafted HTTP request with multiple requests included inside the body. NOTE: the vendor's position is that this behavior can only occur in unsupported configurations involving development mode and an HTTP server from outside the Werkzeug project
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 8.07% probability · 94th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-444
- Affected
- palletsprojects/werkzeug
- Source
- cve@mitre.org
References
- https://github.com/pallets/werkzeug/commit/9a3a981d70d2e9ec3344b5192f86fcaf3210cd85Patch, Third Party Advisory
- https://github.com/pallets/werkzeug/issues/2420Issue Tracking, Third Party Advisory
- https://github.com/pallets/werkzeug/commit/9a3a981d70d2e9ec3344b5192f86fcaf3210cd85Patch, Third Party Advisory
- https://github.com/pallets/werkzeug/issues/2420Issue Tracking, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.