Resource exhaustion in Python
CVE-2024-7592
There is a LOW severity vulnerability affecting CPython, specifically the 'http.cookies' standard library module. When parsing cookies that contained backslashes for quoted characters in the cookie value, the parser would use an algorithm with quadratic complexity, resulting in excess CPU resources being used while parsing the value.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
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:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.023 (82.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
- Python — versions 3.13.0
- Python Software Foundation Cpython — versions 0, 3.9.0, 3.10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/python/cpython/pull/123075 (Patch, patch, Issue Tracking)
- github.com/python/cpython/issues/123067 (issue-tracking, Exploit, Patch, Issue Tracking)
- mail.python.org/archives/list/security-announce@python.org/thread/HXJAAAALNUNGC… (vendor-advisory, Mailing List)
- github.com/python/cpython/commit/391e5626e3ee5af267b97e37abc7475732e67621 (Patch, patch)
- github.com/python/cpython/commit/dcc3eaef98cd94d6cb6cb0f44bd1c903d04f33b1 (Patch, patch)
- github.com/python/cpython/commit/a77ab24427a18bff817025adb03ca920dc3f1a06 (Patch, patch)
- github.com/python/cpython/commit/b2f11ca7667e4d57c71c1c88b255115f16042d9a (Patch, patch)
- github.com/python/cpython/commit/d4ac921a4b081f7f996a5d2b101684b67ba0ed7f (Patch, patch)
- github.com/python/cpython/commit/d662e2db2605515a767f88ad48096b8ac623c774 (Patch, patch)
- github.com/python/cpython/commit/44e458357fca05ca0ae2658d62c8c595b048b5ef (Patch, patch)
Frequently asked questions
- What is CVE-2024-7592?
- CVE-2024-7592 is a high-severity vulnerability in Python, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2024-08-19.
- How severe is CVE-2024-7592?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2024-7592 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.