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CVE-2026-115732

Certificate Name Authorization Bypass

9.0 CriticalFix available

Incorrect authorization in the certificate-name matching of trapperkeeper-authorization, as used by Puppet Server, in the affected products, allows a client that holds a CA-signed certificate whose name extends or shortens an authorized hostname to be authorized as that host. This enables impersonation of other nodes and, in Puppet Enterprise, access to certificate-authority administration and remote command execution on managed nodes. Exploitation requires a certificate with a colliding name, which the certificate authority issues by approval or autosign.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.74%Unchanged since Nov 4, 2026
90%50%10%1%

What each source reports

CVE List Score used 9.0

Certificate Name Authorization Bypass

Incorrect authorization in the certificate-name matching of trapperkeeper-authorization, as used by Puppet Server, in the affected products, allows a client that holds a CA-signed certificate whose name extends or shortens an authorized hostname to be authorized as that host. This enables impersonation of other nodes and, in Puppet Enterprise, access to certificate-authority administration and remote command execution on managed nodes. Exploitation requires a certificate with a colliding name, which the certificate authority issues by approval or autosign.

Record
CVE-2026-115732
CVSS 4.0
9.0 CriticalCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Weakness
CWE-863, CWE-697
Updated
2026-11-06
EUVDEUVD-2026-116493 9.0

Incorrect authorization in the certificate-name matching of trapperkeeper-authorization, as used by Puppet Server, in the affected products, allows a client that holds a CA-signed certificate whose name extends or shortens an authorized hostname to be authorized as that host. This enables impersonation of other nodes and, in Puppet Enterprise, access to certificate-authority administration and remote command execution on managed nodes. Exploitation requires a certificate with a colliding name, which the certificate authority issues by approval or autosign.

Record
EUVD-2026-116493
CVSS 4.0
9.0 CriticalCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Updated
2026-11-06
GitHub AdvisoriesGHSA-5jqj-9p78-vmh3 9.0

Incorrect authorization in the certificate-name matching of trapperkeeper-authorization, as used...

Incorrect authorization in the certificate-name matching of trapperkeeper-authorization, as used by Puppet Server, in the affected products, allows a client that holds a CA-signed certificate whose name extends or shortens an authorized hostname to be authorized as that host. This enables impersonation of other nodes and, in Puppet Enterprise, access to certificate-authority administration and remote command execution on managed nodes. Exploitation requires a certificate with a colliding name, which the certificate authority issues by approval or autosign.

Record
GHSA-5jqj-9p78-vmh3
CVSS 4.0
9.0 CriticalCVSS:4.0/AV:N/AC:L/AT:P/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
Weakness
CWE-697
Updated
2026-11-03
NVD 9.0

Incorrect authorization in the certificate-name matching of trapperkeeper-authorization, as used by Puppet Server, in the affected products, allows a client that holds a CA-signed certificate whose name extends or shortens an authorized hostname to be authorized as that host. This enables impersonation of other nodes and, in Puppet Enterprise, access to certificate-authority administration and remote command execution on managed nodes. Exploitation requires a certificate with a colliding name, which the certificate authority issues by approval or autosign.

Record
CVE-2026-115732
CVSS 4.0
9.0 CriticalCVSS:4.0/AV:N/AC:L/AT:P/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
Weakness
CWE-697, CWE-863
Updated
2026-11-06
OSVDEBIAN-CVE-2026-115732 9.0

Incorrect authorization in the certificate-name matching of trapperkeeper-authorization, as used by Puppet Server, in the affected products, allows a client that holds a CA-signed certificate whose name extends or shortens an authorized hostname to be authorized as that host. This enables impersonation of other nodes and, in Puppet Enterprise, access to certificate-authority administration and remote command execution on managed nodes. Exploitation requires a certificate with a colliding name, which the certificate authority issues by approval or autosign.

Record
DEBIAN-CVE-2026-115732
CVSS 4.0
9.0 CriticalCVSS:4.0/AV:N/AC:L/AT:P/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
Updated
2026-11-07
OSVUBUNTU-CVE-2026-115732 9.0

Incorrect authorization in the certificate-name matching of trapperkeeper-authorization, as used by Puppet Server, in the affected products, allows a client that holds a CA-signed certificate whose name extends or shortens an authorized hostname to be authorized as that host. This enables impersonation of other nodes and, in Puppet Enterprise, access to certificate-authority administration and remote command execution on managed nodes. Exploitation requires a certificate with a colliding name, which the certificate authority issues by approval or autosign.

Record
UBUNTU-CVE-2026-115732
CVSS 4.0
9.0 CriticalCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Updated
2026-11-05

Affected products

Affected packages

Affected packages
PackageAffectedFixed
trapperkeeper-authorization-clojure
Debian:12
before 1.0.0-4+deb12u1, plus listed versions
1.0.0-4
1.0.0-4+deb12u1
trapperkeeper-authorization-clojure
Debian:13
before 2.0.1-2+deb13u1, plus listed versions
2.0.1-2
2.0.1-2+deb13u1
puppetserver
Ubuntu:24.04:LTS
All versions, plus listed versions
7.9.5-28.4.0-1
None known
puppetserver
Ubuntu:26.10
All versions, plus listed versions
8.7.0-6ubuntu18.7.0-6ubuntu2
None known
puppetserver
Ubuntu:26.04:LTS
All versions, plus listed versions
8.7.0-38.7.0-68.7.0-6ubuntu1
None known

History

History
RecordedChangedSources
affected, aliases, facts, referencesCVE List, EUVD, NVD, OSV
affected, aliases, referencesEUVD, NVD, OSV
aliases, cwes, products, published, references, severity, titleCVE List, EUVD
first indexedGitHub Advisories

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-115732 is a critical vulnerability (CVSS 9.0) in Perforce Puppet Enterprise, published November 3, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.74%, the 55th percentile. Fixed in trapperkeeper-authorization-clojure 1.0.0-4+deb12u1.

References

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