CVE-2026-33897— Incus 安全漏洞
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一、 漏洞 CVE-2026-33897 基础信息
漏洞信息
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Vulnerability Title
Incus vulnerable to arbitrary file read and write through pongo templates
来源: CVE Program / CVE List V5
Vulnerability Description
Incus is a system container and virtual machine manager. Prior to version 6.23.0, instance template files can be used to cause arbitrary read or writes as root on the host server. Incus allows for pongo2 templates within instances which can be used at various times in the instance lifecycle to template files inside of the instance. This particular implementation of pongo2 within Incus allowed for file read/write but with the expectation that the pongo2 chroot feature would isolate all such access to the instance's filesystem. This was allowed such that a template could theoretically read a file and then generate a new version of said file. Unfortunately the chroot isolation mechanism is entirely skipped by pongo2 leading to easy access to the entire system's filesystem with root privileges. Version 6.23.0 patches the issue.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
CWE-1336
来源: CVE Program / CVE List V5
Vulnerability Title
Incus 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Incus是LXC开源的一个系统容器和虚拟机管理器。 Incus 6.23.0之前版本存在安全漏洞，该漏洞源于实例模板文件中的pongo2模板绕过chroot隔离机制，可能导致任意读写。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2026-33897 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-33897 厂商安全公告 (1)
同批安全公告 · lxc · 2026-03-26 · 共 6 条
| CVE-2026-33945 | 10.0 CRITICAL | Incus 路径遍历漏洞 |
| CVE-2026-33898 | 8.8 HIGH | Incus 授权问题漏洞 |
| CVE-2026-33743 | 6.5 MEDIUM | Incus 安全漏洞 |
| CVE-2026-33711 | Incus 安全漏洞 | |
| CVE-2026-33542 | Incus 信任管理问题漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-33897
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