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CVE-2026-108543— ag2ai ag2 UserProxyAgent os.path.join path traversal

Quick assessment

Affected
ag2ai ag2
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.

在 ag2ai 发布的 ag2 项目 0.13.4 及更早版本中，发现了一个安全漏洞。受此问题影响的是 UserProxyAgent 组件中的 os.path.join 函数。该函数对参数 filename 的处理不当可导致路径遍历（Path Traversal）攻击。此攻击可通过远程方式实施。该漏洞的利用方法已公开，可能被攻击者利用。供应商在早期已被通知此披露事项，但始终未作出任何回应。

CVSS 6.3 · Medium EPSS 0.34% · P25

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 5

VendorProduct Version RangeStatus
ag2ai ag2 0.13.0 affected
0.13.1 affected
0.13.2 affected
0.13.3 affected
0.13.4 affected
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I. Basic Information for CVE-2026-108543

Vulnerability Information
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Vulnerability Title
ag2ai ag2 UserProxyAgent os.path.join path traversal
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in ag2ai ag2 up to 0.13.4. Affected by this issue is the function os.path.join of the component UserProxyAgent. This manipulation of the argument filename causes path traversal. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
ag2ai ag2 0.13.0 cpe:2.3:a:ag2ai:ag2:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-108543

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-108543

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Security Blog Posts for CVE-2026-108543 (1)

IV. Related Vulnerabilities

Same weakness: CWE-22

V. Comments for CVE-2026-108543

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