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CVE-2026-111237— Ultralytics FastSAM AutoBackend Model Loading autobackend.py session.get_modelmeta.custom_metadata_map eval injection

Quick assessment

Affected
Ultralytics FastSAM
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 Ultralytics FastSAM（版本不超过 b4ed20c2fed75eadc5aa7d8b09fedd137b873b52）中发现了一个安全弱点。该问题影响文件 ultralytics/nn/autobackend.py 中 AutoBackend Model Loading 组件的 session.get_modelmeta.custom_metadata_map 函数。对参数 imgsz/names/kpt_shape 的操纵会导致动态执行的代码中指令未能被正确中和。此漏洞需要本地访问权限。 该产

CVSS 5.3 · Medium

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-111237

Vulnerability Information
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Vulnerability Title
Ultralytics FastSAM AutoBackend Model Loading autobackend.py session.get_modelmeta.custom_metadata_map eval injection
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in Ultralytics FastSAM up to b4ed20c2fed75eadc5aa7d8b09fedd137b873b52. This affects the function session.get_modelmeta.custom_metadata_map of the file ultralytics/nn/autobackend.py of the component AutoBackend Model Loading. This manipulation of the argument imgsz/names/kpt_shape causes improper neutralization of directives in dynamically evaluated code. The attack requires local access. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The project was informed of the problem early through an issue report but has not responded yet.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
动态执行代码中指令转义处理不恰当(Eval注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Ultralytics FastSAM b4ed20c2fed75eadc5aa7d8b09fedd137b873b52 cpe:2.3:a:ultralytics:fastsam:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-111237

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III. Intelligence Information for CVE-2026-111237

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Other References for CVE-2026-111237 (1)

IV. Related Vulnerabilities

Same weakness: CWE-95

V. Comments for CVE-2026-111237

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