CVE-2024-7592: high-severity vulnerability in Python Software Foundation CPython
Quadratic complexity parsing cookies with backslashes
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 2.3%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Python Software Foundation · CPythonRelated CVEs — Python Software Foundation CPython
In the same product, most dangerous first.
CVE-2024-6232HIGHRegular-expression DoS when parsing TarFile headersEPSS 2.2%CVE-2024-12254HIGHUnbounded memory buffering in SelectorSocketTransport.writelines()EPSS 1.9%CVE-2025-13836MEDIUMExcessive read buffering DoS in http.clientEPSS 1.7%CVE-2025-0938MEDIUMURL parser allowed square brackets in domain namesEPSS 1.6%CVE-2025-4138HIGHBypassing extraction filter to create symlinks to arbitrary targets outside extraction directoryEPSS 1.5%CVE-2025-4517CRITICALArbitrary writes via tarfile realpath overflowEPSS 1.5%
References
https://github.com/python/cpython/commit/391e5626e3ee5af267b97e37abc7475732e67621https://github.com/python/cpython/commit/44e458357fca05ca0ae2658d62c8c595b048b5efhttps://github.com/python/cpython/commit/a77ab24427a18bff817025adb03ca920dc3f1a06https://github.com/python/cpython/commit/b2f11ca7667e4d57c71c1c88b255115f16042d9ahttps://github.com/python/cpython/commit/d4ac921a4b081f7f996a5d2b101684b67ba0ed7fhttps://github.com/python/cpython/commit/d662e2db2605515a767f88ad48096b8ac623c774https://github.com/python/cpython/commit/dcc3eaef98cd94d6cb6cb0f44bd1c903d04f33b1https://github.com/python/cpython/issues/123067https://github.com/python/cpython/pull/123075https://lists.debian.org/debian-lts-announce/2024/12/msg00000.htmlhttps://mail.python.org/archives/list/security-announce@python.org/thread/HXJAAAALNUNGCQUS2W7WR6GFIZIHFOOK/https://security.netapp.com/advisory/ntap-20241018-0006/