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CVE-2025-62515— Remote Code Execution by Pickle Deserialization via FlightServer in pyquokka

Quick assessment

Affected
marsupialtail quokka
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.

Quokka是开源的一个用 Python 编写的内容管理框架。 quokka 0.3.1及之前版本存在代码问题漏洞，该漏洞源于FlightServer类在do_action方法中直接使用pickle.loads反序列化来自Flight客户端的操作数据，可能导致远程代码执行。

CVSS 9.8 · Critical EPSS 0.78% · P54

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-62515

Vulnerability Information
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Vulnerability Title
Remote Code Execution by Pickle Deserialization via FlightServer in pyquokka
Source: CVE Program / CVE List V5
Vulnerability Description
pyquokka is a framework for making data lakes work for time series. In versions 0.3.1 and prior, the FlightServer class directly uses pickle.loads() to deserialize action bodies received from Flight clients without any sanitization or validation in the do_action() method. The vulnerable code is located in pyquokka/flight.py at line 283 where arbitrary data from Flight clients is directly passed to pickle.loads(). When FlightServer is configured to listen on 0.0.0.0, this allows attackers across the entire network to perform arbitrary remote code execution by sending malicious pickled payloads through the set_configs action. Additional vulnerability points exist in the cache_garbage_collect, do_put, and do_get functions where pickle.loads is used to deserialize untrusted remote data.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
quokka 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Quokka是开源的一个用 Python 编写的内容管理框架。 quokka 0.3.1及之前版本存在代码问题漏洞，该漏洞源于FlightServer类在do_action方法中直接使用pickle.loads反序列化来自Flight客户端的操作数据，可能导致远程代码执行。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
marsupialtail quokka <= 3.0.1 -

II. Public POCs for CVE-2025-62515

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III. Intelligence Information for CVE-2025-62515

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IV. Related Vulnerabilities

Same weakness: CWE-502

V. Comments for CVE-2025-62515

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