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CVE Record

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

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.

HighCVSS 8Not KEV-listedUpdated
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Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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cwe · medium confidence lookup

CWE-23: File access and web shell behavior lookup

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description · low confidence lookup

Credential and access behavior lookup

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File access behavior lookup

The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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Container behavior lookup

The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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CVE-2026-14476 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
8 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
5Timeline events
1ADP providers
25Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8CVSS 3.1HighCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H1.36redhat

Vulnerability scoring details

Base CVSS 3.1 score

8High
CVSS 3.1 vector shape for CVE-2026-14476Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. Source timelineredhat

    Reported to Red Hat.

  2. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  3. Source timelineredhat

    Made public.

  4. CVE publishedCVE Program

    The CVE record was published.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Red HatRed Hat Enterprise Linux 10sssd, 0:2.12.0-3.el10_2.1affected
Red HatRed Hat Enterprise Linux 10.0 Extended Update Supportsssd, 0:2.10.2-3.el10_0.5affected
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Supportsssd, 0:1.16.5-10.el7_9.18affected
Red HatRed Hat Enterprise Linux 8sssd, 0:2.9.4-5.el8_10.5affected
Red HatRed Hat Enterprise Linux 8sssd, 0:2.9.4-5.el8_10.5affected
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportsssd, 0:2.4.0-9.el8_4.5affected
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onsssd, 0:2.4.0-9.el8_4.5affected
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportsssd, 0:2.6.2-4.el8_6.5affected
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-Onsssd, 0:2.6.2-4.el8_6.5affected
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Servicesssd, 0:2.8.2-4.el8_8.4affected
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutionssssd, 0:2.8.2-4.el8_8.4affected
Red HatRed Hat Enterprise Linux 9sssd, 0:2.9.8-4.el9_8.1affected
Red HatRed Hat Enterprise Linux 9sssd, 0:2.9.8-4.el9_8.1affected
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutionssssd, 0:2.8.2-5.el9_2.7affected
Red HatRed Hat Enterprise Linux 9.4 Update Services for SAP Solutionssssd, 0:2.9.4-6.el9_4.5affected
Red HatRed Hat Enterprise Linux 9.6 Extended Update Supportsssd, 0:2.9.6-4.el9_6.5affected
Red HatRed Hat OpenShift Container Platform 4.12openshift/ose-rhel-coreos-8, 412.86.202608241157-0affected
Red HatRed Hat OpenShift Container Platform 4.13openshift/ose-rhel-coreos-9, 413.92.202608111330-0affected
Red HatRed Hat OpenShift Container Platform 4.14openshift/ose-rhel-coreos-9, 414.92.202608172040-0affected
Red HatRed Hat OpenShift Container Platform 4.15openshift/ose-rhel-coreos-9, 415.92.202608180329-0affected
Red HatRed Hat OpenShift Container Platform 4.16openshift/ose-rhel-coreos-9, 416.94.202608150307-0affected
Red HatRed Hat OpenShift Container Platform 4.17openshift/ose-rhel-coreos-9, 417.94.202608250221-0affected
Red HatRed Hat OpenShift Container Platform 4.18openshift/ose-rhel-coreos-9, 418.94.202608142238-0affected
Red HatRed Hat OpenShift Container Platform 4.19openshift/ose-rhel-coreos-9, 4.19.9.6.202608120446-0affected
Red HatRed Hat OpenShift Container Platform 4.20openshift/ose-rhel-coreos-9, 4.20.9.6.202608121719-0affected
Red HatRed Hat OpenShift Container Platform 4.21openshift/ose-rhel-coreos-9, 4.21.9.6.202608122143-0affected
Red HatRed Hat OpenShift Container Platform 4.22openshift/ose-rhel-coreos-9, 4.22.9.8.202608130832-0affected
Red HatRed Hat Enterprise Linux 6sssdunknown
Weakness

CWE details

CWE-23

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-23 · source CWE mapping

Relative Path Traversal

Relative Path Traversal represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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