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CVE-2026-2340— Samba 安全漏洞

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。

Samba是Samba开源的一个适用于 Linux 和 Unix 的标准 Windows 互操作性程序套件。 Samba存在安全漏洞,该漏洞源于vfs_worm模块在重命名操作期间验证不足,可能导致经过身份验证的用户通过重命名新创建文件覆盖受WORM保护的文件。

CVSS 6.5 · Medium EPSS 0.94% · P59

影响版本矩阵 30

厂商产品 版本范围状态
Red Hat Red Hat Enterprise Linux 10 0:4.23.5-109.el10_2< * unaffected
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:4.21.3-114.el10_0.1< * unaffected
Red Hat Red Hat Enterprise Linux 6 全部 unknown
全部 unknown
Red Hat Red Hat Enterprise Linux 7 全部 affected
Red Hat Red Hat Enterprise Linux 8 0:4.19.4-16.el8_10< * unaffected
0:4.19.4-16.el8_10< * unaffected
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:4.15.5-16.el8_6.1< * unaffected
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 0:4.15.5-16.el8_6.1< * unaffected
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:4.17.5-7.el8_8.1< * unaffected
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:4.17.5-7.el8_8.1< * unaffected
Red Hat Red Hat Enterprise Linux 9 0:4.23.5-10.el9_8< * unaffected
0:4.23.5-10.el9_8< * unaffected
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:4.17.5-105.el9_2.5< * unaffected
Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions 0:4.19.4-105.el9_4.4< * unaffected
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 0:4.21.3-14.el9_6.1< * unaffected
Red Hat Red Hat OpenShift Container Platform 4 全部 affected
Red Hat Red Hat OpenShift Container Platform 4.12 412.86.202608241157-0< * unaffected
412.86.202609082051-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.13 413.92.202609080414-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.14 414.92.202608172040-0< * unaffected
414.92.202609011250-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.15 415.92.202608180329-0< * unaffected
415.92.202609140326-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.16 416.94.202608150307-0< * unaffected
416.94.202609011112-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.17 417.94.202608250221-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.18 418.94.202608142238-0< * unaffected
418.94.202609031320-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.19 4.19.9.6.202606241344-0< * unaffected
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一、 漏洞 CVE-2026-2340 基础信息

漏洞信息

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Vulnerability Title
Samba: vfs_worm does not block directory modification
来源: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in Samba’s vfs_worm module. The module is intended to provide write-once, read-many (WORM) protections by preventing modification of files after a configurable grace period. Due to insufficient validation during rename operations, an authenticated user with write access to a share could overwrite a protected file by renaming a newly created file over the existing WORM-protected file.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
不充分权限或特权的处理不恰当
来源: CVE Program / CVE List V5
Vulnerability Title
Samba 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Samba是Samba开源的一个适用于 Linux 和 Unix 的标准 Windows 互操作性程序套件。 Samba存在安全漏洞,该漏洞源于vfs_worm模块在重命名操作期间验证不足,可能导致经过身份验证的用户通过重命名新创建文件覆盖受WORM保护的文件。
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

厂商 产品 影响版本 CPE 订阅
Red Hat Red Hat Enterprise Linux 10 0:4.23.5-109.el10_2 ~ * cpe:/o:redhat:enterprise_linux:10.2
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:4.21.3-114.el10_0.1 ~ * cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat Red Hat Enterprise Linux 8 0:4.19.4-16.el8_10 ~ * cpe:/a:redhat:enterprise_linux:8::appstream
Red Hat Red Hat Enterprise Linux 8 0:4.19.4-16.el8_10 ~ * cpe:/a:redhat:enterprise_linux:8::appstream
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:4.15.5-16.el8_6.1 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 0:4.15.5-16.el8_6.1 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:4.17.5-7.el8_8.1 ~ * cpe:/a:redhat:rhel_e4s:8.8::appstream
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:4.17.5-7.el8_8.1 ~ * cpe:/a:redhat:rhel_e4s:8.8::appstream
Red Hat Red Hat Enterprise Linux 9 0:4.23.5-10.el9_8 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 9 0:4.23.5-10.el9_8 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:4.17.5-105.el9_2.5 ~ * cpe:/a:redhat:rhel_e4s:9.2::appstream
Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions 0:4.19.4-105.el9_4.4 ~ * cpe:/a:redhat:rhel_e4s:9.4::appstream
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 0:4.21.3-14.el9_6.1 ~ * cpe:/a:redhat:rhel_eus:9.6::appstream
Red Hat Red Hat OpenShift Container Platform 4.12 412.86.202608241157-0 ~ * cpe:/a:redhat:openshift:4.12::el8
Red Hat Red Hat OpenShift Container Platform 4.12 412.86.202609082051-0 ~ * cpe:/a:redhat:openshift:4.12::el8
Red Hat Red Hat OpenShift Container Platform 4.13 413.92.202609080414-0 ~ * cpe:/a:redhat:openshift:4.13::el9
Red Hat Red Hat OpenShift Container Platform 4.14 414.92.202608172040-0 ~ * cpe:/a:redhat:openshift:4.14::el9
Red Hat Red Hat OpenShift Container Platform 4.14 414.92.202609011250-0 ~ * cpe:/a:redhat:openshift:4.14::el9
Red Hat Red Hat OpenShift Container Platform 4.15 415.92.202608180329-0 ~ * cpe:/a:redhat:openshift:4.15::el9
Red Hat Red Hat OpenShift Container Platform 4.15 415.92.202609140326-0 ~ * cpe:/a:redhat:openshift:4.15::el9
Red Hat Red Hat OpenShift Container Platform 4.16 416.94.202608150307-0 ~ * cpe:/a:redhat:openshift:4.16::el9
Red Hat Red Hat OpenShift Container Platform 4.16 416.94.202609011112-0 ~ * cpe:/a:redhat:openshift:4.16::el9
Red Hat Red Hat OpenShift Container Platform 4.17 417.94.202608250221-0 ~ * cpe:/a:redhat:openshift:4.17::el9
Red Hat Red Hat OpenShift Container Platform 4.18 418.94.202608142238-0 ~ * cpe:/a:redhat:openshift:4.18::el9
Red Hat Red Hat OpenShift Container Platform 4.18 418.94.202609031320-0 ~ * cpe:/a:redhat:openshift:4.18::el9
Red Hat Red Hat OpenShift Container Platform 4.19 4.19.9.6.202606241344-0 ~ * cpe:/a:redhat:openshift:4.19::el9
Red Hat Red Hat Enterprise Linux 6 - cpe:/o:redhat:enterprise_linux:6
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 OpenShift Container Platform 4 - cpe:/a:redhat:openshift:4

二、漏洞 CVE-2026-2340 的公开POC

# POC 描述 源链接 神龙链接
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三、漏洞 CVE-2026-2340 的情报信息

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CVE-2026-2340 补丁与修复 (1)

CVE-2026-2340 厂商安全公告 (17)

CVE-2026-2340 其他参考 (6)

同批安全公告 · Red Hat · 2026-05-27 · 共 5 条

CVE-2026-3012 8.0 HIGH Samba 数据伪造问题漏洞
CVE-2026-1933 7.1 HIGH Samba 访问控制错误漏洞
CVE-2026-9704 6.8 MEDIUM Keycloak 安全漏洞
CVE-2026-9689 4.2 MEDIUM Keycloak 安全漏洞

IV. Related Vulnerabilities

V. Comments for CVE-2026-2340

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