CVE-2026-100103 Perfoce CVE debrief

Who should care

Administrators and users of Perforce P4 Search container images should assess their exposure and update to version 2026.4.2 or later. This includes operators, platform administrators, vulnerability management teams, and security teams who need to verify their exposure, review compensating controls, and monitor for potential unauthorized access attempts.

Why it matters

CVE-2026-100103 is a critical vulnerability in Perforce P4 Search container images that can lead to arbitrary code execution and compromise of the connected P4 Server. Defenders should verify their exposure, update to version 2026.4.2 or later, and monitor for potential unauthorized access attempts.

• Potential arbitrary code execution on the connected P4 Server
• Possible compromise of the P4 Server
• Verification of network access controls and authentication mechanisms is necessary
• Remediation priority is high due to the critical CVSS score

Technical summary

Perforce P4 Search container images prior to 2026.4.2 reset the service authentication token to a publicly documented default value, potentially allowing an unauthenticated attacker with network access to obtain the highest application privilege. This could lead to arbitrary code execution and compromise of the connected P4 Server. The vulnerability has a critical CVSS score of 10. Defenders should review and update Perforce P4 Search container images to version 2026.4.2 or later, verify network access controls, and monitor for potential unauthorized access attempts.

Defensive priority

High

Recommended defensive actions

• Review and update Perforce P4 Search container images to version 2026.4.2 or later
• Verify network access controls to restrict access to the P4 Server
• Monitor for potential unauthorized access attempts
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and NVD entry provide details on the vulnerability in Perforce P4 Search container images prior to 2026.4.2. The evidence is limited to publicly available information from these sources. Defenders should verify their exposure by reviewing the official CVE Program record and NVD entry. The CVE record was published on 2026-10-05T09:17:05.717Z and has not been modified since then. Additional verification tasks include checking for potential unauthorized access attempts and reviewing network access controls.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.