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CVE-2026-45758— Malicious code in guardrails-ai 0.10.1 (supply chain compromise)

Quick assessment

Affected
guardrails-ai guardrails
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Guardrails是Guardrails AI开源的一个 Python 框架。 Guardrails 0.10.1版本存在安全漏洞，该漏洞源于恶意版本发布到PyPI，可能导致用户系统受影响。

CVSS 9.6 · Critical EPSS 0.49% · P40

Possible ATT&CK Techniques 1 AI

T1195.002 · Compromise Software Supply Chain

Affected Version Matrix 1

VendorProduct Version RangeStatus
guardrails-ai guardrails = 0.10.1 affected
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I. Basic Information for CVE-2026-45758

Vulnerability Information
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Vulnerability Title
Malicious code in guardrails-ai 0.10.1 (supply chain compromise)
Source: CVE Program / CVE List V5
Vulnerability Description
Guardrails AI is a Python framework that helps build AI applications. On May 11, 2026 at approximately 6:00 PM Pacific, an attacker published a malicious version of `guardrails-ai` (0.10.1) to PyPI. Aany user who installed `guardrails-ai==0.10.1` from PyPI on May 11, 2026 may be affected. Security researchers identified the malicious package within approximately 2 hours of publication, and PyPI quarantined the repository. Based on our telemetry, Guardrails AI maintainers have observed no requests to Guardrails AI infrastructure originating from the malicious 0.10.1 version, and a review of system and access logs has produced no evidence of user data exfiltration through their systems. Users should upgrade to version 0.10.2 or downgrade to version 0.10.0, both of which are unaffected. Those who installed version 0.10.1 should rotate any credentials accessible from their machine (GitHub PATs, cloud provider keys, package registry tokens, API keys) and audit their GitHub account for unauthorized workflows or repositories.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
内嵌的恶意代码
Source: CVE Program / CVE List V5
Vulnerability Title
Guardrails 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Guardrails是Guardrails AI开源的一个 Python 框架。 Guardrails 0.10.1版本存在安全漏洞，该漏洞源于恶意版本发布到PyPI，可能导致用户系统受影响。
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
guardrails-ai guardrails = 0.10.1 -

II. Public POCs for CVE-2026-45758

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7071 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-45758

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Vendor Advisories for CVE-2026-45758 (2)

Other References for CVE-2026-45758 (1)

IV. Related Vulnerabilities

Same product: guardrails
Same weakness: CWE-506

V. Comments for CVE-2026-45758

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