CVE-2025-13837: low-severity vulnerability in Python Software Foundation CPython
Out-of-memory when loading Plist
Published · Updated
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8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 2.1epss 0.2%
When loading a plist file, the plistlib module reads data in size specified by the file itself, meaning a malicious file can cause OOM and DoS issues
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:L/SA:N
Affected products
Python Software Foundation · CPythonRelated CVEs — Python Software Foundation CPython
In the same product, most dangerous first.
CVE-2024-7592HIGHQuadratic complexity parsing cookies with backslashesEPSS 2.3%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%
References
https://github.com/python/cpython/commit/568342cfc8f002d9a15f30238f26b9d2e0e79036https://github.com/python/cpython/commit/5a8b19677d818fb41ee55f310233772e15aa1a2bhttps://github.com/python/cpython/commit/694922cf40aa3a28f898b5f5ee08b71b4922df70https://github.com/python/cpython/commit/71fa8eb8233b37f16c88b6e3e583b461b205d1bahttps://github.com/python/cpython/commit/b64441e4852383645af5b435411a6f849dd1b4cbhttps://github.com/python/cpython/commit/cefee7d118a26ef6cd43db59bb9d98ca9a331111https://github.com/python/cpython/issues/119342https://github.com/python/cpython/pull/119343https://mail.python.org/archives/list/security-announce@python.org/thread/2X5IBCJXRQAZ5PSERLHMSJFBHFR3QM2C/