CVE-2026-115731

CRITICAL
INFO Priority: 0.03 BB Relevance: 69/100
Published: 2026-11-03 Modified: 2026-11-06 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: X
AT: None
VC: High
VI: High
VA: High

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.

Affected Software (9)

VendorProductVersion
Perforce Puppet Enterprise 2023.8.0 < 2023.8.13
Perforce Puppet Enterprise 2025.0.0 < 2025.12.1
Perforce Puppet Enterprise 2026.0.0 < 2026.0.1
Perforce Puppet Enterprise 2023.8.0 < 2023.8.13
Perforce Puppet Enterprise 2025.0.0 < 2025.12.1
Perforce Puppet Enterprise 2026.0.0 < 2026.0.1
Perforce Puppet Enterprise 2023.8.0 < 2023.8.13
Perforce Puppet Enterprise 2025.0.0 < 2025.12.1
Perforce Puppet Enterprise 2026.0.0 < 2026.0.1

Bug Bounty Relevance

69 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

9.4 / 10.0 v4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.37%
Raw Score 0.003660
Percentile 30.9%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00366
2026-11-13
0.00366
2026-11-12
0.00366
2026-11-10
0.00366
2026-11-09
0.00366
2026-11-08
0.00366
2026-11-07
0.00366
2026-11-06
0.00366
2026-11-05
0.00366
2026-11-04
0.00366

Intelligence Sources

mitre ref →
nvd ref →