CVE-2021-33026
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-33026
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-33026.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-33026
- Aliases
- Withdrawn
- 2022-09-16T22:55:27Z
- Published
- 2021-05-13T23:15:07Z
- Modified
- 2024-08-07T03:00:14.848851Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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
- References
Affected packages
Debian:11 / flask-caching
Package
- Name
- flask-caching
- Purl
- pkg:deb/debian/flask-caching?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affected
Debian:12 / flask-caching
Package
- Name
- flask-caching
- Purl
- pkg:deb/debian/flask-caching?arch=source
Debian:13 / flask-caching
Package
- Name
- flask-caching
- Purl
- pkg:deb/debian/flask-caching?arch=source