{"id":"CVE-2026-115731","aliases":["AZL-112717","DEBIAN-CVE-2026-115731","EUVD-2026-116495","GHSA-4pxx-8frq-9r4j","UBUNTU-CVE-2026-115731"],"status":"published","title":"Report Deserialization Code Execution","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.","severity":{"version":"4.0","score":9.4,"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","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00366,"percentile":0.30829,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-502","CWE-94"],"published":"2026-11-03T20:40:10Z","modified":"2026-11-07T14:17:58Z","fixes":[{"ecosystem":"Debian:12","package":"puppet-agent","fixed_in":["7.23.0-1+deb12u1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"puppet-agent","fixed_in":["8.10.0-5+deb13u1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"puppet","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"7.34.0-1"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"puppet-agent","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.23.0-1+deb12u1"}]}],"versions":["7.23.0-1"]},{"source":"osv","ecosystem":"Debian:13","package":"puppet-agent","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.10.0-5+deb13u1"}]}],"versions":["8.10.0-5"]},{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"puppet","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.4-2ubuntu2","3.3.1-1ubuntu1","3.3.1-1ubuntu2","3.3.1-1ubuntu3","3.4.2-1","3.4.3-1","3.4.3-1ubuntu1","3.4.3-1ubuntu1.1","3.4.3-1ubuntu1.2","3.4.3-1ubuntu1.3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"puppet","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.7.2-5ubuntu2","3.8.4-1ubuntu1","3.8.5-1ubuntu1","3.8.5-2","3.8.5-2ubuntu0.1","3.8.5-2ubuntu0.1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"puppet","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.10.4-2ubuntu1","4.10.4-2ubuntu2","4.10.4-2ubuntu3","5.4.0-2ubuntu3"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"puppet","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.0-2ubuntu3","5.5.10-4ubuntu3"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"puppet","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.5.22-1ubuntu1","5.5.22-4","5.5.22-4ubuntu0.2"]}],"products":[{"vendor":"perforce","product":"puppet enterprise"}],"references":[{"url":"https://portal.perforce.com/s/cve/a91Qi000003IaHpIAK/report-deserialization-code-execution","tags":["report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115731","tags":["web"]},{"url":"https://github.com/advisories/GHSA-4pxx-8frq-9r4j"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-115731","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-115731","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-115731","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-115731","title":"Report Deserialization Code Execution","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.","status":"published","published":"2026-11-03T20:40:10.1Z","modified":"2026-11-06T19:36:39.577Z","cvss":[{"version":"4.0","score":9.4,"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","level":"critical","assessor":"cna"}],"cwes":["CWE-502","CWE-94"],"updated_at":"2026-11-06T20:30:03.598374Z"}],"euvd":[{"id":"EUVD-2026-116495","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.","status":"published","published":"2026-11-03T20:40:10Z","modified":"2026-11-06T19:36:39Z","cvss":[{"version":"4.0","score":9.4,"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","level":"critical"}],"updated_at":"2026-11-06T21:07:00.781791Z"}],"ghsa":[{"id":"GHSA-4pxx-8frq-9r4j","title":"Deserialization of untrusted data in the report-processing code of Puppet, as used by Puppet...","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.","status":"published","published":"2026-11-03T21:32:17Z","modified":"2026-11-03T21:32:17Z","cvss":[{"version":"4.0","score":9.4,"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/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","level":"critical"}],"cwes":["CWE-94"],"updated_at":"2026-11-03T21:34:06.482208Z"}],"nvd":[{"id":"CVE-2026-115731","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.","status":"published","published":"2026-11-03T21:17:01.867Z","modified":"2026-11-06T20:38:53.57Z","cvss":[{"version":"4.0","score":9.4,"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/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","level":"critical","assessor":"secondary"}],"cwes":["CWE-94","CWE-502"],"updated_at":"2026-11-06T22:02:16.475328Z"}],"osv":[{"id":"DEBIAN-CVE-2026-115731","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.","status":"published","published":"2026-11-03T21:17:01.867Z","modified":"2026-11-07T09:47:37.574494235Z","cvss":[{"version":"4.0","score":9.4,"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/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","level":"critical"}],"updated_at":"2026-11-07T10:14:19.880839Z"},{"id":"UBUNTU-CVE-2026-115731","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.","status":"published","published":"2026-11-03T21:17:00Z","modified":"2026-11-05T11:45:50.437861785Z","cvss":[{"version":"4.0","score":9.4,"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","level":"critical"}],"updated_at":"2026-11-05T13:30:15.321876Z"},{"id":"AZL-112717","title":"CVE-2026-115731 affecting package puppet 7.34.0-1","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.","status":"published","published":"2026-11-03T21:17:01Z","modified":"2026-11-07T14:17:58.209508655Z","updated_at":"2026-11-07T14:48:11.583685Z"}]}}