Perforce P4 Search prior to 2026.4.2 trusts a client-supplied address when validating certain authentication requests. An attacker holding a stolen P4 Server ticket can bypass host-based ticket restrictions and trusted-address controls, gaining access to P4 Search as the ticket's owner.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Perforce P4 (Helix Core) affected
Version Status Constraints
0 affected ≤ 2026.4.1
2026.4.2 unaffected —

No data.

No data.

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://portal.perforce.com/s/cve/a91Qi000003FDo1IAG/ticket-hostbinding-bypass-via-spoofed-client-ip-in-p4search cve-icon cve-icon
History

Mon, 05 Oct 2026 09:00:00 +0000

Type Values Removed Values Added
Description Perforce P4 Search prior to 2026.4.2 trusts a client-supplied address when validating certain authentication requests. An attacker holding a stolen P4 Server ticket can bypass host-based ticket restrictions and trusted-address controls, gaining access to P4 Search as the ticket's owner.
Title Ticket host-binding bypass via spoofed client IP in P4Search
Weaknesses CWE-290
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Perforce

Published:

Updated: 2026-10-05T08:36:55.057Z

Reserved: 2026-09-30T17:38:18.505Z

Link: CVE-2026-103512

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-05T09:17:07.247

Modified: 2026-10-05T09:17:07.247

Link: CVE-2026-103512

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-05T10:30:18Z

Weaknesses