CVE-2023-30798

MultipartParser DOS with too many fields or files in Starlette Framework

Description

There MultipartParser usage in Encode's Starlette python framework before versions 0.25.0 allows an unauthenticated and remote attacker to specify any number of form fields or files which can cause excessive memory usage resulting in denial of service of the HTTP service.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.73% Top 30%
Vendor Advisory github.com
Affected: Encode Starlette
Published at:
Updated at:

References

Link Tags
https://github.com/encode/starlette/security/advisories/GHSA-74m5-2c7w-9w3x mitigation vendor advisory
https://github.com/encode/starlette/commit/8c74c2c8dba7030154f8af18e016136bea1938fa patch
https://vulncheck.com/advisories/starlette-multipartparser-dos third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2023-30798?
CVE-2023-30798 has been scored as a high severity vulnerability.
How to fix CVE-2023-30798?
To fix CVE-2023-30798, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-30798 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-30798 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-30798?
CVE-2023-30798 affects Encode Starlette.
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