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CVE-2026-90777— ESPnet before 202609 Remote Code Execution via Unsafe Deserialization

Quick assessment

Affected
espnet espnet
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.

espnet是espnet组织开源的一款面向语音处理任务的端到端机器学习工具包，涵盖语音识别、语音合成与语音翻译等功能。 espnet 202609之前版本存在反序列化注入漏洞，该漏洞源于使用torch.load且weights_only=False反序列化预训练模型检查点，可能导致攻击者通过特制检查点文件执行任意代码。

CVSS 8.8 · High EPSS 0.73% · P54

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
espnet espnet < 202609 affected
202609 unaffected
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I. Basic Information for CVE-2026-90777

Vulnerability Information
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Vulnerability Title
ESPnet before 202609 Remote Code Execution via Unsafe Deserialization
Source: CVE Program / CVE List V5
Vulnerability Description
ESPnet before 202609 deserializes pretrained model checkpoints using torch.load with weights_only=False, allowing arbitrary code execution from attacker-supplied files. Attackers can craft malicious checkpoint files that execute code during deserialization when loaded through the initialization or fine-tuning path.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/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
Vulnerability Title
espnet 反序列化注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
espnet是espnet组织开源的一款面向语音处理任务的端到端机器学习工具包，涵盖语音识别、语音合成与语音翻译等功能。 espnet 202609之前版本存在反序列化注入漏洞，该漏洞源于使用torch.load且weights_only=False反序列化预训练模型检查点，可能导致攻击者通过特制检查点文件执行任意代码。
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
espnet espnet 0 ~ 202609 -

II. Public POCs for CVE-2026-90777

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III. Intelligence Information for CVE-2026-90777

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Patches & Fixes for CVE-2026-90777 (1)

Vendor Advisories for CVE-2026-90777 (3)

IV. Related Vulnerabilities

Same product: espnet
Same weakness: CWE-502