CVE-2026-115731— Report Deserialization Code Execution

Quick assessment

Affected

Perforce Puppet Enterprise

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.

在受影响的 Puppet 版本中，Puppet Server 所使用的报告处理代码存在不可信数据反序列化漏洞。持有任意由证书颁发机构（CA）签名的代理证书的攻击者，可通过 PUT 请求提交包含精心构造的“富数据类型（rich-data type）”的报告，从而以 Puppet Server 服务用户的身份在服务器上执行任意代码。若证书颁发机构在自动签名请求时未进行强验证，未认证的远程网络攻击者亦可获取此类证书并利用该漏洞。

CVSS 9.4 · Critical Updated Nov 04, 2026

Possible ATT&CK Techniques 2 AI

T1055.001 · Dynamic-link Library Injection T1190 · Exploit Public-Facing Application

Get alerts for future matching vulnerabilities Log in to subscribe

Vulnerability Information

Have questions about the vulnerability? See if Shenlong's analysis helps!

View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title

Report Deserialization Code Execution

Source: CVE Program / CVE List V5

Vulnerability Description

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.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

可信数据的反序列化

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Perforce	Puppet Enterprise	2023.8.0 ~ 2023.8.13	-

II. Public POCs for CVE-2026-115731

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-115731

请登录查看更多情报信息。

Other References for CVE-2026-115731 (1)

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

https://www.cve.org/CVERecord?id=CVE-2026-115731

IV. Related Vulnerabilities

Same product: Puppet Enterprise

Same vendor: Perforce

Same weakness: CWE-502