CVE-2025-12084— Quadratic complexity in node ID cache clearing
Quick assessment
Affected
Python Software Foundation CPython
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
CPython是Python基金会的一个用C语言实现的Python解释器。 CPython存在安全漏洞，该漏洞源于构建嵌套元素时算法复杂度问题，可能导致构建过度嵌套文档时影响可用性。
Possible ATT&CK Techniques 1 AI
T1496 · Resource Hijacking
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2025-12084
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Quadratic complexity in node ID cache clearing
Source: CVE Program / CVE List V5
Vulnerability Description
When building nested elements using xml.dom.minidom methods such as appendChild() that have a dependency on _clear_id_cache() the algorithm is quadratic. Availability can be impacted when building excessively nested documents.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
CPython 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CPython是Python基金会的一个用C语言实现的Python解释器。 CPython存在安全漏洞，该漏洞源于构建嵌套元素时算法复杂度问题，可能导致构建过度嵌套文档时影响可用性。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Python Software Foundation | CPython | 0 ~ 3.10.20 | - |
|
II. Public POCs for CVE-2025-12084
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2025-12084
请登录查看更多情报信息。
IV. Related Vulnerabilities
Same product: CPython
-
CVE-2026-19553
SSLContext.wrap_bio() missing validation of server_hostname -
CVE-2026-19445
Use-after-free of a server-side SSLContext when sni_callback -
CVE-2026-12345
Race condition in tempfile.TemporaryDirectory cleanup allows -
CVE-2026-82049
tarfile extraction filters allow file modification and conte -
CVE-2026-87910
tarfile hardlink fallback ignores custom extraction filter r
Same vendor: Python Software Foundation
-
CVE-2026-19553
SSLContext.wrap_bio() missing validation of server_hostname -
CVE-2026-19445
Use-after-free of a server-side SSLContext when sni_callback -
CVE-2026-12345
Race condition in tempfile.TemporaryDirectory cleanup allows -
CVE-2026-82049
tarfile extraction filters allow file modification and conte -
CVE-2026-87910
tarfile hardlink fallback ignores custom extraction filter r
V. Comments for CVE-2025-12084
No comments yet