CVE-2026-41051— csync2 uses insecure temporary directories when compiled with C99 or later
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I. Basic Information for CVE-2026-41051
Vulnerability Information
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Vulnerability Title
csync2 uses insecure temporary directories when compiled with C99 or later
Source: NVD (National Vulnerability Database)
Vulnerability Description
csync2 uses insecure temporary directories when compiled with C99 or later, allowing for TOCTOU style attacks on the temporary directories.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linbit csync2 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linbit csync2是奥地利Linbit公司的一款集群同步工具，它主要用于使群集中多个主机上的文件保持同步。 Linbit csync2存在安全漏洞，该漏洞源于使用C99或更高版本编译时使用不安全的临时目录，允许对临时目录进行TOCTOU攻击。
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 |
|---|---|---|---|---|
| SUSE | openSUSE Tumbleweed | ? ~ 2.0+git.1600444747.83b3644-3.1 | - |
II. Public POCs for CVE-2026-41051
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · SUSE · 2026-05-13 · 3 CVEs total
| CVE-2026-41050 | 9.9 CRITICAL | Helm impersonation bypass of `RESTClientGetter` retains `cluster-admin` during template re |
| CVE-2026-25705 | 8.4 HIGH | Rancher Extensions have arbitrary file access via path traversal |
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Helm impersonation bypass of `RESTClientGetter` retains `clu - CVE-2026-25705
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V. Comments for CVE-2026-41051
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