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CVE-2026-14476— Sssd: sssd: gpo cache path traversal via unsanitized gpcfilesyspath allows kerberos authentication bypass

Quick assessment

Affected

Red Hat Red Hat Enterprise Linux 10

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Red Hat sssd是美国Red Hat公司的一款数据库系统软件。 Red Hat sssd存在路径遍历漏洞，该漏洞源于SSSD的AD GPO提供程序中ad_gpo_extract_smb_components()函数未对gPCFileSysPath LDAP属性中的..序列进行清理，可能导致具有AD GPO管理权限的攻击者以root权限在GPO缓存目录之外写入文件，并通过注入Kerberos配置绕过身份验证。以下版本受到影响：Red Hat Enterprise Linux 10、Red Hat E

CVSS 8.0 · High EPSS 0.67% · P50 Updated Sep 03, 2026

Possible ATT&CK Techniques 3 AI

T1190 · Exploit Public-Facing Application T1078.002 · Domain Accounts T1546.007 · Netsh Helper DLL

Affected Version Matrix 29

Vendor	Product	Version Range	Status
Red Hat	Red Hat Enterprise Linux 10	`0:2.12.0-3.el10_2.1< *`	unaffected
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	`0:2.10.2-3.el10_0.5< *`	unaffected
Red Hat	Red Hat Enterprise Linux 6	`any`	unknown
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	`0:1.16.5-10.el7_9.18< *`	unaffected
Red Hat	Red Hat Enterprise Linux 8	`0:2.9.4-5.el8_10.5< *`	unaffected
		`0:2.9.4-5.el8_10.5< *`	unaffected
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	`0:2.4.0-9.el8_4.5< *`	unaffected
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	`0:2.4.0-9.el8_4.5< *`	unaffected
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	`0:2.6.2-4.el8_6.5< *`	unaffected
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On	`0:2.6.2-4.el8_6.5< *`	unaffected
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	`0:2.8.2-4.el8_8.4< *`	unaffected
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	`0:2.8.2-4.el8_8.4< *`	unaffected
Red Hat	Red Hat Enterprise Linux 9	`0:2.9.8-4.el9_8.1< *`	unaffected
		`0:2.9.8-4.el9_8.1< *`	unaffected
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	`0:2.8.2-5.el9_2.7< *`	unaffected
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	`0:2.9.4-6.el9_4.5< *`	unaffected
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	`0:2.9.6-4.el9_6.5< *`	unaffected
Red Hat	Red Hat OpenShift Container Platform 4	`any`	affected
Red Hat	Red Hat OpenShift Container Platform 4.12	`412.86.202608241157-0< *`	unaffected
Red Hat	Red Hat OpenShift Container Platform 4.13	`413.92.202608111330-0< *`	unaffected
Red Hat	Red Hat OpenShift Container Platform 4.14	`414.92.202608172040-0< *`	unaffected
Red Hat	Red Hat OpenShift Container Platform 4.15	`415.92.202608180329-0< *`	unaffected
Red Hat	Red Hat OpenShift Container Platform 4.16	`416.94.202608150307-0< *`	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
Red Hat	Red Hat OpenShift Container Platform 4.19	`4.19.9.6.202608120446-0< *`	unaffected
Red Hat	Red Hat OpenShift Container Platform 4.20	`4.20.9.6.202608121719-0< *`	unaffected
Red Hat	Red Hat OpenShift Container Platform 4.21	`4.21.9.6.202608122143-0< *`	unaffected
Red Hat	Red Hat OpenShift Container Platform 4.22	`4.22.9.8.202608130832-0< *`	unaffected

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I. Basic Information for CVE-2026-14476

Vulnerability Information

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Vulnerability Title

Sssd: sssd: gpo cache path traversal via unsanitized gpcfilesyspath allows kerberos authentication bypass

Source: CVE Program / CVE List V5

Vulnerability Description

A path traversal flaw was found in SSSD's AD GPO provider. The ad_gpo_extract_smb_components() function does not sanitize .. sequences in the gPCFileSysPath LDAP attribute, allowing an attacker with AD GPO management access to write files outside the GPO cache directory as root. On default RHEL configurations with SELinux enforcing, this can be used to inject Kerberos configuration leading to authentication bypass.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Source: CVE Program / CVE List V5

Vulnerability Type

相对路径遍历

Source: CVE Program / CVE List V5

Vulnerability Title

Red Hat sssd 路径遍历漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

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
Red Hat	Red Hat Enterprise Linux 10	0:2.12.0-3.el10_2.1 ~ *	`cpe:/o:redhat:enterprise_linux:10.2`
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	0:2.10.2-3.el10_0.5 ~ *	`cpe:/o:redhat:enterprise_linux_eus:10.0`
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	0:1.16.5-10.el7_9.18 ~ *	`cpe:/o:redhat:rhel_els:7`
Red Hat	Red Hat Enterprise Linux 8	0:2.9.4-5.el8_10.5 ~ *	`cpe:/a:redhat:enterprise_linux:8::appstream`
Red Hat	Red Hat Enterprise Linux 8	0:2.9.4-5.el8_10.5 ~ *	`cpe:/a:redhat:enterprise_linux:8::appstream`
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	0:2.4.0-9.el8_4.5 ~ *	`cpe:/o:redhat:rhel_aus:8.4::baseos`
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	0:2.4.0-9.el8_4.5 ~ *	`cpe:/o:redhat:rhel_aus:8.4::baseos`
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	0:2.6.2-4.el8_6.5 ~ *	`cpe:/o:redhat:rhel_aus:8.6::baseos`
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On	0:2.6.2-4.el8_6.5 ~ *	`cpe:/o:redhat:rhel_aus:8.6::baseos`
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	0:2.8.2-4.el8_8.4 ~ *	`cpe:/a:redhat:rhel_e4s:8.8::appstream`
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	0:2.8.2-4.el8_8.4 ~ *	`cpe:/a:redhat:rhel_e4s:8.8::appstream`
Red Hat	Red Hat Enterprise Linux 9	0:2.9.8-4.el9_8.1 ~ *	`cpe:/a:redhat:enterprise_linux:9::appstream`
Red Hat	Red Hat Enterprise Linux 9	0:2.9.8-4.el9_8.1 ~ *	`cpe:/a:redhat:enterprise_linux:9::appstream`
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	0:2.8.2-5.el9_2.7 ~ *	`cpe:/a:redhat:rhel_e4s:9.2::appstream`
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	0:2.9.4-6.el9_4.5 ~ *	`cpe:/a:redhat:rhel_e4s:9.4::appstream`
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	0:2.9.6-4.el9_6.5 ~ *	`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 4.13	413.92.202608111330-0 ~ *	`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 4.15	415.92.202608180329-0 ~ *	`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 4.17	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 4.19	4.19.9.6.202608120446-0 ~ *	`cpe:/a:redhat:openshift:4.19::el9`
Red Hat	Red Hat OpenShift Container Platform 4.20	4.20.9.6.202608121719-0 ~ *	`cpe:/a:redhat:openshift:4.20::el9`
Red Hat	Red Hat OpenShift Container Platform 4.21	4.21.9.6.202608122143-0 ~ *	`cpe:/a:redhat:openshift:4.21::el9`
Red Hat	Red Hat OpenShift Container Platform 4.22	4.22.9.8.202608130832-0 ~ *	`cpe:/a:redhat:openshift:4.22::el9`
Red Hat	Red Hat Enterprise Linux 6	-	`cpe:/o:redhat:enterprise_linux:6`
Red Hat	Red Hat OpenShift Container Platform 4	-	`cpe:/a:redhat:openshift:4`

II. Public POCs for CVE-2026-14476

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-14476

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-14476 (23)

🔗 cve-details vdb-entry x_refsource_REDHAT
🔗 2496581 – (CVE-2026-14476) CVE-2026-14476 sssd: sssd: GPO cache path traversal via unsanitized gPCFileSysPath allows Kerberos authentication bypass Read full article issue-tracking x_refsource_REDHAT
🔗 RHSA-2026:46990 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:41937 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:54581 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:56911 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:59831 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:49839 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:54553 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:49843 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:57483 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:54769 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:49841 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:56853 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:49844 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:54599 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:54187 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:42122 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:49842 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:50109 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:56786 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:46482 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:60019 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT

https://www.cve.org/CVERecord?id=CVE-2026-14476

Same Patch Batch · Red Hat · 2026-07-07 · 7 CVEs total

CVE-2026-14474	8.8 HIGH	Sssd: sssd: sudo ldap provider searches entire directory tree for sudorole objects by defa
CVE-2026-58384	7.3 HIGH	Gimp: gimp: integer overflow in read_rle_channel()
CVE-2025-12799	6.5 MEDIUM	Jastow: jastow cross-site scripting attack due to unsanitized uri
CVE-2026-14940	5.3 MEDIUM	389-ds-base: 389-ds-base: heap-buffer-overflow in dn normalization via quoted multivalued
CVE-2026-14969	4.4 MEDIUM	389-ds-base: 389-ds-base: static initialization vector in aes-cbc/3des-cbc attribute encry
CVE-2026-14935	3.7 LOW	Gstreamer1-plugins-bad-free: gstreamer: webrtcbin accepts remote sdp without a=fingerprint

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10

Same vendor: Red Hat

Same weakness: CWE-23

V. Comments for CVE-2026-14476

No comments yet

Goal Reached Thanks to every supporter — we hit 100%!

CVE-2026-14476— Sssd: sssd: gpo cache path traversal via unsanitized gpcfilesyspath allows kerberos authentication bypass

Quick assessment

Possible ATT&CK Techniques 3 AI

Affected Version Matrix 29

I. Basic Information for CVE-2026-14476

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2026-14476

III. Intelligence Information for CVE-2026-14476

Vendor Advisories for CVE-2026-14476 (23)

Same Patch Batch · Red Hat · 2026-07-07 · 7 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2026-14476

Leave a comment