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CVE-2025-6279— Upsonic Pickle add_tool cloudpickle.loads deserialization

Quick assessment

Affected
n/a Upsonic
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.

Upsonic是Upsonic开源的一个AI代理框架。 Upsonic 0.55.6及之前版本存在代码问题漏洞，该漏洞源于组件Pickle Handler中文件/tools/add_tool函数cloudpickle.loads存在反序列化。

CVSS 5.5 · Medium EPSS 0.50% · P41
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I. Basic Information for CVE-2025-6279

Vulnerability Information
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Vulnerability Title
Upsonic Pickle add_tool cloudpickle.loads deserialization
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability, which was classified as critical, has been found in Upsonic up to 0.55.6. This issue affects the function cloudpickle.loads of the file /tools/add_tool of the component Pickle Handler. The manipulation leads to deserialization. The exploit has been disclosed to the public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
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
Upsonic 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Upsonic是Upsonic开源的一个AI代理框架。 Upsonic 0.55.6及之前版本存在代码问题漏洞，该漏洞源于组件Pickle Handler中文件/tools/add_tool函数cloudpickle.loads存在反序列化。
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
- Upsonic 0.55.0 -

II. Public POCs for CVE-2025-6279

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III. Intelligence Information for CVE-2025-6279

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Same Patch Batch · n/a · 2025-06-19 · 6 CVEs total

CVE-2025-6278 5.5 MEDIUM Upsonic server.py os.path.join path traversal
CVE-2025-6270 5.3 MEDIUM HDF5 H5FSsection.c H5FS__sect_find_node heap-based overflow
CVE-2025-6269 5.3 MEDIUM HDF5 H5Cimage.c H5C__reconstruct_cache_entry heap-based overflow
CVE-2025-6272 3.3 LOW wasm3 m3_compile.c MarkSlotAllocated out-of-bounds write
CVE-2025-6271 3.3 LOW swftools wav2swf wav.c wav_convert2mono out-of-bounds

IV. Related Vulnerabilities

Same product: Upsonic
Same vendor: n/a
Same weakness: CWE-502

V. Comments for CVE-2025-6279

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