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CVE-2026-2340— Samba 安全漏洞

CVSS 6.5 · Medium EPSS 0.94% · P58

影响版本矩阵 17

厂商产品版本范围状态
Red HatRed Hat Enterprise Linux 100:4.23.5-109.el10_2< *unaffected
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support0:4.21.3-114.el10_0.1< *unaffected
Red HatRed Hat Enterprise Linux 6全部unknown
全部unknown
Red HatRed Hat Enterprise Linux 7全部affected
Red HatRed Hat Enterprise Linux 80:4.19.4-16.el8_10< *unaffected
0:4.19.4-16.el8_10< *unaffected
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support0:4.15.5-16.el8_6.1< *unaffected
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On0:4.15.5-16.el8_6.1< *unaffected
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Service0:4.17.5-7.el8_8.1< *unaffected
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutions0:4.17.5-7.el8_8.1< *unaffected
Red HatRed Hat Enterprise Linux 90:4.23.5-10.el9_8< *unaffected
0:4.23.5-10.el9_8< *unaffected
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutions0:4.17.5-105.el9_2.5< *unaffected
Red HatRed Hat Enterprise Linux 9.4 Update Services for SAP Solutions0:4.19.4-105.el9_4.4< *unaffected
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support0:4.21.3-14.el9_6.1< *unaffected
Red HatRed Hat OpenShift Container Platform 4.194.19.9.6.202606241344-0< *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 HatRed Hat Enterprise Linux 10 0:4.23.5-109.el10_2 ~ * cpe:/o:redhat:enterprise_linux:10.2
Red HatRed 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 HatRed Hat Enterprise Linux 8 0:4.19.4-16.el8_10 ~ * cpe:/a:redhat:enterprise_linux:8::appstream
Red HatRed Hat Enterprise Linux 8 0:4.19.4-16.el8_10 ~ * cpe:/a:redhat:enterprise_linux:8::appstream
Red HatRed 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 HatRed 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 HatRed 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 HatRed 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 HatRed Hat Enterprise Linux 9 0:4.23.5-10.el9_8 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red HatRed Hat Enterprise Linux 9 0:4.23.5-10.el9_8 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red HatRed 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 HatRed 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 HatRed 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 HatRed Hat OpenShift Container Platform 4.19 4.19.9.6.202606241344-0 ~ * cpe:/a:redhat:openshift:4.19::el9
Red HatRed Hat Enterprise Linux 6-cpe:/o:redhat:enterprise_linux:6
Red HatRed Hat Enterprise Linux 6-cpe:/o:redhat:enterprise_linux:6
Red HatRed Hat Enterprise Linux 7-cpe:/o:redhat:enterprise_linux:7

二、漏洞 CVE-2026-2340 的公开POC

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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 (5)

CVE-2026-2340 其他参考 (6)

同批安全公告 · Red Hat · 2026-05-27 · 共 5 条

CVE-2026-30128.0 HIGHSamba 数据伪造问题漏洞
CVE-2026-19337.1 HIGHSamba 访问控制错误漏洞
CVE-2026-97046.8 MEDIUMKeycloak 安全漏洞
CVE-2026-96894.2 MEDIUMKeycloak 安全漏洞

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-280

V. Comments for CVE-2026-2340

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