Vulnerability in Pallets Flask
CVE-2023-30861
Flask is a lightweight WSGI web application framework. When all of the following conditions are met, a response containing data intended for one client may be cached and subsequently sent by the proxy to other clients. If the proxy also ca…
EPSS: 0.002 (44.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Pallets Flask — versions >= 2.3.0, < 2.3.2, < 2.2.5
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/pallets/flask/security/advisories/GHSA-m2qf-hxjv-5gpq (x_refsource_CONFIRM)
- https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b (x_refsource_MISC)
- https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965 (x_refsource_MISC)
- https://github.com/pallets/flask/releases/tag/2.2.5 (x_refsource_MISC)
- https://github.com/pallets/flask/releases/tag/2.3.2 (x_refsource_MISC)
- www.debian.org/security/2023/dsa-5442
- security.netapp.com/advisory/ntap-20230818-0006/
- lists.debian.org/debian-lts-announce/2023/08/msg00024.html
Frequently asked questions
- What is CVE-2023-30861?
- CVE-2023-30861 is a high-severity vulnerability in Pallets Flask, classified under CWE-539. CVSS score: 7.5/10. Published 2023-05-02.
- How severe is CVE-2023-30861?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2023-30861 known to be exploited?
- 20 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.