Security Report on Vulnerabilities Identified Through Prisma Scan #4573
Description
1. Introduction
This report summarizes the vulnerabilities identified through the Prisma scan conducted.
The identified vulnerabilities have been categorized based on their severity levels, potential impacts, and recommended actions for remediation.
2. Vulnerabilities
2.1 High Vulnerabilities
Vulnerability: CVE-2025-66418
Description: urllib3 supports chained HTTP encoding algorithms for response content according to RFC 9110 (e.g., Content-Encoding: gzip, zstd).
However, the number of links in the decompression chain was unbounded allowing a malicious server to insert a virtually unlimited number of compression steps leading to high CPU usage and massive memory allocation for the decompressed data.
Vulnerability: CVE-2025-66471
Description: urllib3's streaming API is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once.
When streaming a compressed response, urllib3 can perform decoding or decompression based on the HTTP Content-Encoding header (e.g., gzip, deflate, br, or zstd). The library must read compressed data from the network and decompress it until the requested chunk size is met. Any resulting decompressed data that exceeds the requested amount is held in an internal buffer for the next read operation.
The decompression logic could cause urllib3 to fully decode a small amount of highly compressed data in a single operation. This can result in excessive resource consumption (high CPU usage and massive memory allocation for the decompressed data; CWE-409) on the client side, even if the application only requested a small chunk of data.
3. How to reproduce it (as minimally and precisely as possible):
Scan your image via Prisma and you will see the issues.
Affected versions: 0.59b0
4. Conclusion
The Prisma scan identified several vulnerabilities in the environment.
Immediate attention should be given to critical and high-severity vulnerabilities to mitigate potential risks.
Medium and low-severity vulnerabilities should also be addressed in a timely manner to strengthen the security posture.
Continuous monitoring and regular vulnerability assessments are recommended to ensure ongoing security.
Please review this report and prioritize the remediation efforts accordingly.