{"schema_version":1,"title":"OpenPrinting CUPS vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 7 vulnerabilities in OpenPrinting CUPS: 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-87876, was published on 9 September 2026.","url":"https://junglewise.ai/threats/technologies/cups","json_url":"https://junglewise.ai/threats/technologies/cups.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/cups","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":2,"all_time":7,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":2,"last_90_days":2,"last_365_days":7},"latest":[{"cve":"CVE-2026-87876","cvss":3,"epss":0.0033,"slug":"cve-2026-87876-cups-scheduler-case-insensitive-username-comparison-in-acl","title":"CUPS scheduler case-insensitive username comparison in ACL validation","severity":"low","exploited":false,"published_at":"2026-09-09T17:17:53.377+00:00","url":"https://junglewise.ai/threats/cve-2026-87876-cups-scheduler-case-insensitive-username-comparison-in-acl"},{"cve":"CVE-2026-87875","cvss":4.3,"epss":0.0032,"slug":"cve-2026-87875-cups-cupsutf32toutf8-heap-out-of-bounds-read-in-transcode","title":"CUPS cupsUTF32ToUTF8 heap out-of-bounds read in transcode","severity":"medium","exploited":false,"published_at":"2026-09-09T17:17:53.24+00:00","url":"https://junglewise.ai/threats/cve-2026-87875-cups-cupsutf32toutf8-heap-out-of-bounds-read-in-transcode"},{"cve":"CVE-2026-34990","cvss":7.8,"epss":0.0029,"slug":"cve-2026-34990-openprinting-cups-privilege-escalation-via-local-admin-token","title":"OpenPrinting CUPS Privilege Escalation via Local Admin Token Disclosure","severity":"high","exploited":false,"published_at":"2026-04-03T22:16:27.4+00:00","url":"https://junglewise.ai/threats/cve-2026-34990-openprinting-cups-privilege-escalation-via-local-admin-token"},{"cve":"CVE-2026-34980","cvss":7.5,"epss":0.005,"slug":"cve-2026-34980-openprinting-cups-remote-code-execution-in-shared-postscript","title":"OpenPrinting CUPS remote code execution in shared PostScript queue","severity":"high","exploited":false,"published_at":"2026-04-03T22:16:27.243+00:00","url":"https://junglewise.ai/threats/cve-2026-34980-openprinting-cups-remote-code-execution-in-shared-postscript"},{"cve":"CVE-2026-34979","cvss":5.3,"epss":0.0038,"slug":"cve-2026-34979-openprinting-cups-heap-buffer-overflow-in-cups-scheduler","title":"OpenPrinting CUPS heap buffer overflow in CUPS scheduler","severity":"medium","exploited":false,"published_at":"2026-04-03T22:16:27.097+00:00","url":"https://junglewise.ai/threats/cve-2026-34979-openprinting-cups-heap-buffer-overflow-in-cups-scheduler"},{"cve":"CVE-2026-34978","cvss":6.5,"epss":0.0041,"slug":"cve-2026-34978-openprinting-cups-path-traversal-in-rss-notifier","title":"OpenPrinting CUPS path traversal in RSS notifier","severity":"medium","exploited":false,"published_at":"2026-04-03T22:16:26.947+00:00","url":"https://junglewise.ai/threats/cve-2026-34978-openprinting-cups-path-traversal-in-rss-notifier"},{"cve":"CVE-2026-27447","cvss":4.8,"epss":0.0032,"slug":"cve-2026-27447-openprinting-cups-authorization-bypass-in-cupsd-via-case","title":"OpenPrinting CUPS authorization bypass in cupsd via case-insensitive comparison","severity":"medium","exploited":false,"published_at":"2026-04-03T22:16:25.193+00:00","url":"https://junglewise.ai/threats/cve-2026-27447-openprinting-cups-authorization-bypass-in-cupsd-via-case"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":2},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[],"technology":{"hub":true,"name":"OpenPrinting CUPS","slug":"cups","vendor":{"name":"OpenPrinting","slug":"openprinting","url":"https://junglewise.ai/threats/vendors/openprinting"},"aliases":[],"category":"print-server","homepage":"https://openprinting.github.io/cups/","repo_url":"https://github.com/OpenPrinting/cups","description":"CUPS is a standards-based, open source printing system for Linux and other Unix-like operating systems.","url":"https://junglewise.ai/threats/technologies/cups"},"most_severe":[{"cve":"CVE-2026-34990","cvss":7.8,"epss":0.0029,"slug":"cve-2026-34990-openprinting-cups-privilege-escalation-via-local-admin-token","title":"OpenPrinting CUPS Privilege Escalation via Local Admin Token Disclosure","severity":"high","exploited":false,"published_at":"2026-04-03T22:16:27.4+00:00","url":"https://junglewise.ai/threats/cve-2026-34990-openprinting-cups-privilege-escalation-via-local-admin-token"},{"cve":"CVE-2026-34980","cvss":7.5,"epss":0.005,"slug":"cve-2026-34980-openprinting-cups-remote-code-execution-in-shared-postscript","title":"OpenPrinting CUPS remote code execution in shared PostScript queue","severity":"high","exploited":false,"published_at":"2026-04-03T22:16:27.243+00:00","url":"https://junglewise.ai/threats/cve-2026-34980-openprinting-cups-remote-code-execution-in-shared-postscript"},{"cve":"CVE-2026-34978","cvss":6.5,"epss":0.0041,"slug":"cve-2026-34978-openprinting-cups-path-traversal-in-rss-notifier","title":"OpenPrinting CUPS path traversal in RSS notifier","severity":"medium","exploited":false,"published_at":"2026-04-03T22:16:26.947+00:00","url":"https://junglewise.ai/threats/cve-2026-34978-openprinting-cups-path-traversal-in-rss-notifier"},{"cve":"CVE-2026-34979","cvss":5.3,"epss":0.0038,"slug":"cve-2026-34979-openprinting-cups-heap-buffer-overflow-in-cups-scheduler","title":"OpenPrinting CUPS heap buffer overflow in CUPS scheduler","severity":"medium","exploited":false,"published_at":"2026-04-03T22:16:27.097+00:00","url":"https://junglewise.ai/threats/cve-2026-34979-openprinting-cups-heap-buffer-overflow-in-cups-scheduler"},{"cve":"CVE-2026-27447","cvss":4.8,"epss":0.0032,"slug":"cve-2026-27447-openprinting-cups-authorization-bypass-in-cupsd-via-case","title":"OpenPrinting CUPS authorization bypass in cupsd via case-insensitive comparison","severity":"medium","exploited":false,"published_at":"2026-04-03T22:16:25.193+00:00","url":"https://junglewise.ai/threats/cve-2026-27447-openprinting-cups-authorization-bypass-in-cupsd-via-case"},{"cve":"CVE-2026-87875","cvss":4.3,"epss":0.0032,"slug":"cve-2026-87875-cups-cupsutf32toutf8-heap-out-of-bounds-read-in-transcode","title":"CUPS cupsUTF32ToUTF8 heap out-of-bounds read in transcode","severity":"medium","exploited":false,"published_at":"2026-09-09T17:17:53.24+00:00","url":"https://junglewise.ai/threats/cve-2026-87875-cups-cupsutf32toutf8-heap-out-of-bounds-read-in-transcode"},{"cve":"CVE-2026-87876","cvss":3,"epss":0.0033,"slug":"cve-2026-87876-cups-scheduler-case-insensitive-username-comparison-in-acl","title":"CUPS scheduler case-insensitive username comparison in ACL validation","severity":"low","exploited":false,"published_at":"2026-09-09T17:17:53.377+00:00","url":"https://junglewise.ai/threats/cve-2026-87876-cups-scheduler-case-insensitive-username-comparison-in-acl"}],"generated_at":"2026-09-26T09:11:00.170868+00:00"}