CVE-2026-110923— Openssh: openssh: sftp can write outside the destination directory from a server-supplied path
一分钟漏洞结论
影响对象
Red Hat Red Hat Enterprise Linux 10
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。
A flaw was found in OpenSSH. During an sftp copy, a malicious server can supply an empty name, a slash-only path, or a ".." basename that sftp uses as the local destination, writing outside the directory the user selected.
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一、 漏洞 CVE-2026-110923 基础信息
漏洞信息
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Vulnerability Title
Openssh: openssh: sftp can write outside the destination directory from a server-supplied path
来源: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in OpenSSH. During an sftp copy, a malicious server can supply an empty name, a slash-only path, or a ".." basename that sftp uses as the local destination, writing outside the directory the user selected.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
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 | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 | - |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 | - |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Hardened Images | - |
cpe:/a:redhat:hummingbird:1
|
|
| Red Hat | Red Hat Hardened Images | - |
cpe:/a:redhat:hummingbird:1
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 | - |
cpe:/a:redhat:openshift:4
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 | - |
cpe:/a:redhat:openshift:4
|
|
二、漏洞 CVE-2026-110923 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-110923 厂商安全公告 (2)
同批安全公告 · Red Hat · 2026-10-15 · 共 3 条
| CVE-2026-110925 | 5.4 MEDIUM | Openssh: openssh: '$' and '\' in a command-line username expand through %u |
| CVE-2026-110926 | 5.3 MEDIUM | Openssh: openssh: shared lz77 compression dictionary leaks plaintext across channels |
IV. Related Vulnerabilities
Same product: Red Hat Enterprise Linux 10
-
CVE-2026-110926
Openssh: openssh: shared lz77 compression dictionary leaks p -
CVE-2026-110925
Openssh: openssh: '$' and '\' in a command-line username exp -
CVE-2026-110777
Evolution-data-server: local file disclosure via attach file -
CVE-2026-109968
Clevis: clevis: pkcs#11 luks passphrase logged in plaintext -
CVE-2026-100229
Gstreamer1-plugins-bad-free: gstreamer1-plugins-bad-free: ou
Same vendor: Red Hat
-
CVE-2026-110926
Openssh: openssh: shared lz77 compression dictionary leaks p -
CVE-2026-110925
Openssh: openssh: '$' and '\' in a command-line username exp -
CVE-2026-110777
Evolution-data-server: local file disclosure via attach file -
CVE-2026-86849
Dpdk: dpdk: integer overflow combined with missing validatio -
CVE-2026-86856
Dpdk: dpdk: stack and heap buffer overflow in nfp vdpa drive
Same weakness: CWE-22
-
CVE-2026-50619
Unauthenticated remote code execution vulnerability -
CVE-2026-34015
Remote Code Execution in upload.php of Video Station -
CVE-2026-26243
Arbitrary Folder Deletion in Qsync Central 5.0.0.5 -
CVE-2026-41544
Path Traversal leading to Arbitrary File Move, Docker Escape -
CVE-2026-24718
Path Traversal Vulnerability in Qsync Central's qsyncsrv.cgi
V. Comments for CVE-2026-110923
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