CVE-2026-89091— Ansible-core Galaxy安装符号链接路径逃逸漏洞
一分钟漏洞结论
影响对象
Red Hat Migration Toolkit for Applications 8
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
在 ansible-core 中发现了一个漏洞。当使用 命令安装集合（collection）时，归档提取器通过词法路径规范化（ ）来验证成员路径，而不是解析符号链接（ ），并且在创建符号链接类型的目录成员之前未执行任何包含性检查。攻击者可以构造一个恶意的集合 tarball，链式关联多个符号链接目录条目，使得后续文件成员被写入到预期目标目录之外。这使得攻击者能够通过诱使受害者安装恶意集合，以运行 的用户权限覆盖任意文件，从而导致控制节点上的代码执行。此漏洞绕过了对 CVE-2020-10691 的安全修复。
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一、 漏洞 CVE-2026-89091 基础信息
漏洞信息
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Vulnerability Title
Ansible-core: ansible-core: ansible-galaxy collection install symlink path escape allows arbitrary file write / code execution
来源: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in ansible-core. When installing a collection with
`ansible-galaxy collection install`, the archive extractor validates member
paths using lexical path normalisation (os.path.abspath) instead of resolving
symbolic links (os.path.realpath), and it performs no containment check on
symlink-typed directory members before creating them. A crafted collection
tarball can chain symlink directory entries so that a subsequent file member is
written outside the intended destination directory. This allows an attacker who
can get a victim to install a malicious collection to overwrite arbitrary files
with the privileges of the user running ansible-galaxy, leading to code
execution on the control node. This is a bypass of the fix for CVE-2020-10691.
来源: 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
来源: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Red Hat | Migration Toolkit for Applications 8 | - |
cpe:/a:redhat:migration_toolkit_applications:8
|
|
| Red Hat | Migration Toolkit for Virtualization | - |
cpe:/a:redhat:migration_toolkit_virtualization:2
|
|
| Red Hat | OpenShift Service Mesh 3 | - |
cpe:/a:redhat:service_mesh:3
|
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 | - |
cpe:/a:redhat:acm:2
|
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 | - |
cpe:/a:redhat:acm:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 | - |
cpe:/a:redhat:ansible_automation_platform:2
|
|
二、漏洞 CVE-2026-89091 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
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CVE-2026-89091 其他参考 (2)
同批安全公告 · Red Hat · 2026-10-08 · 共 9 条
| CVE-2026-93017 | 7.7 HIGH | Insights-operator 收集服务账号权限过度 |
| CVE-2026-107466 | 6.1 MEDIUM | Flatpak-builder 本地文件泄露漏洞 |
| CVE-2026-107651 | 5.5 MEDIUM | eog 图片查看器 PNG 元数据堆溢出导致远程代码执行漏洞 |
| CVE-2026-107445 | 5.4 MEDIUM | Katello Flatpak远程仓库API跨组织授权绕过漏洞 |
| CVE-2026-107565 | 5.1 MEDIUM | Luksmeta luks1元数据分配器检查缺陷导致数据损坏 |
| CVE-2026-107604 | 4.9 MEDIUM | Keycloak-view-clients角色可获取活跃客户端密钥 |
| CVE-2026-107623 | 4.3 MEDIUM | Keycloak-services OIDC DCR读写竞争导致离线令牌吊销静默禁用 |
| CVE-2026-107444 | 4.3 MEDIUM | Katello Docker标签仓库API跨组织授权绕过漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-89091
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