CVE-2026-115731 PUBLISHED

Report Deserialization Code Execution

Assigner: Perforce
Reserved: 23.10.2026 Published: 03.11.2026 Updated: 03.11.2026

Deserialization of untrusted data in the report-processing code of Puppet, as used by Puppet Server, in the affected releases, allows a client that holds any CA-signed agent certificate to execute arbitrary code on the Puppet Server as its service user by submitting a report containing a crafted rich-data type via PUT request. Where the certificate authority autosigns requests without strong verification, an unauthenticated network attacker can obtain such a certificate.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS Score: 9.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	Perforce
Product	Puppet Enterprise
Versions	Default: affected affected from 2023.8.0 to 2023.8.13 (excl.) affected from 2025.0.0 to 2025.12.1 (excl.) affected from 2026.0.0 to 2026.0.1 (excl.) Version 2023.8.13 is unaffected Version 2025.12.1 is unaffected Version 2026.0.1 is unaffected

Solutions

Upgrade to a release that bundles puppet-agent 8.22.2 or 9.1.3 (Puppet Enterprise 2023.8.13, 2025.12.1, or 2026.0.1) and restart puppet server so the fixed code is loaded.

References

https://portal.perforce.com/s/cve/a91Qi000003IaHpIAK/report-deserialization-code-execution

Problem Types

CWE-502 Deserialization of Untrusted Data CWE
CWE-94 Improper Control of Generation of Code ('Code Injection') CWE

Impacts

CAPEC-586 Object Injection
CAPEC-242 Code Injection