The Flask-Caching extension through 1.10.1 for Flask relies on Pickle for serialization, which may lead to remote code execution or local privilege escalation. If an attacker gains access to cache storage (e.g., filesystem, Memcached, Redis, etc.), they can construct a crafted payload, poison the cache, and execute Python code. NOTE: a third party indicates that exploitation is extremely unlikely unless the machine is already compromised; in other cases, the attacker would be unable to write their payload to the cache and generate the required collision
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History
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Status: PUBLISHED
Assigner: mitre
Published: 2021-05-13T22:51:20
Updated: 2024-08-03T23:42:19.075Z
Reserved: 2021-05-13T00:00:00
Link: CVE-2021-33026

Updated: 2024-08-03T23:42:19.075Z

Status : Modified
Published: 2021-05-13T23:15:07.367
Modified: 2024-11-21T06:08:09.140
Link: CVE-2021-33026

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