CVE-2026-120859— PyMoDAQ before 5.3.10 Arbitrary Code Execution via Crafted HDF5, Dock Layout, and XML Settings Files

Quick assessment

Affected

PyMoDAQ PyMoDAQ

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.

PyMoDAQ 4.4.13 之前的版本，以及 pymodaq_data、pymodaq_gui 和 pymodaq_utils 的 5.1.15 之前版本、5.2.x 系列中 5.2.14 之前的版本、5.3.x 系列中 5.3.10 之前的版本，均存在不可信数据反序列化漏洞和注入漏洞。攻击者可利用这些漏洞，通过提供特制的文件供用户打开，从而执行任意代码。具体攻击方式包括：将已序列化的（pickled）对象存储在 HDF5 的字符串节点中，当该节点被浏览或读取时，方法会将其传递给；在 HDF5 属性中嵌入

CVSS 7.8 · High Updated Nov 06, 2026

Possible ATT&CK Techniques 2 AI

T1552 · Unsecured Credentials T1190 · Exploit Public-Facing Application

Affected Version Matrix 10

Vendor	Product	Version Range	Status
PyMoDAQ	PyMoDAQ	`< 4.4.13`	affected
PyMoDAQ	pymodaq_data	`< 5.1.15`	affected
		`5.2.0< 5.2.14`	affected
		`5.3.0< 5.3.10`	affected
PyMoDAQ	pymodaq_gui	`< 5.1.15`	affected
		`5.2.0< 5.2.14`	affected
		`5.3.0< 5.3.10`	affected
PyMoDAQ	pymodaq_utils	`< 5.1.15`	affected
		`5.2.0< 5.2.14`	affected
		`5.3.0< 5.3.10`	affected

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Vulnerability Information

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Vulnerability Title

PyMoDAQ before 5.3.10 Arbitrary Code Execution via Crafted HDF5, Dock Layout, and XML Settings Files

Source: CVE Program / CVE List V5

Vulnerability Description

PyMoDAQ before 4.4.13, and pymodaq_data, pymodaq_gui, and pymodaq_utils before 5.1.15, 5.2.x before 5.2.14, and 5.3.x before 5.3.10, contain deserialization of untrusted data and eval injection vulnerabilities that allow attackers to execute arbitrary code by supplying crafted files that a user opens. Attackers can store pickled objects in HDF5 string nodes that StringARRAY.array_to_string() passes to pickle.loads() when the node is browsed or read, place Python expressions in HDF5 attributes that JsonConverter.json2object() evaluates, supply a .dock file that load_layout_state() unpickles from the Dashboard Load layout action, or embed Python expressions in XML settings files that elt_to_dict() and set_txt_from_elt() evaluate.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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

Affected Products

Vendor	Product	Affected Versions	CPE
PyMoDAQ	PyMoDAQ	0 ~ 4.4.13	-
PyMoDAQ	pymodaq_data	0 ~ 5.1.15	-
PyMoDAQ	pymodaq_gui	0 ~ 5.1.15	-
PyMoDAQ	pymodaq_utils	0 ~ 5.1.15	-

II. Public POCs for CVE-2026-120859

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-120859

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Other References for CVE-2026-120859 (11)

https://github.com/PyMoDAQ/PyMoDAQ/commit/3bf9042a58f5d4870a2b45fe2c9423aafe6b9203 patch
https://github.com/PyMoDAQ/PyMoDAQ/commit/041e8a22b3dbe3c986ec0ea3c6b46a22f5efe374 patch
https://github.com/PyMoDAQ/PyMoDAQ/commit/6c7fff74d82624c640bd79513f5b4675ea6d88da patch
https://github.com/PyMoDAQ/PyMoDAQ/commit/ae0042513eb979c84da690825902658c625718d1 patch
https://github.com/PyMoDAQ/PyMoDAQ/blob/5.3.9/packages/pymodaq_data/src/pymodaq_data/h5modules/backends.py#L477-L478 technical-description
https://github.com/PyMoDAQ/PyMoDAQ/releases/tag/5.3.10 release-notes
https://github.com/PyMoDAQ/PyMoDAQ/releases/tag/5.1.15 release-notes
https://github.com/PyMoDAQ/PyMoDAQ/releases/tag/4.4.13 release-notes
https://github.com/PyMoDAQ/PyMoDAQ/releases/tag/5.2.14 release-notes
https://github.com/PyMoDAQ/PyMoDAQ/security/advisories/GHSA-jw9g-5c9x-cf84 vendor-advisory
https://www.vulncheck.com/advisories/pymodaq-before-5.3.10-arbitrary-code-execution-via-crafted-hdf5-dock-layout-and-xml-settings-files third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-120859

IV. Related Vulnerabilities

Same weakness: CWE-502