CVE-2026-34990
- Source
- https://cve.org/CVERecord?id=CVE-2026-34990
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-34990.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-34990
- Aliases
-
- GHSA-c54j-2vqw-wpwp
- Downstream
- Related
- Published
- 2026-04-03T21:14:09.616Z
- Modified
- 2026-04-17T09:14:07.719667293Z
- Severity
-
- 5.0 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:L CVSS Calculator
- Summary
- OpenPrinting CUPS: Local print admin token disclosure using temporary printers
- Details
-
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-controlled localhost IPP service with a reusable Authorization: Local ... token. That token is enough to drive /admin/ requests on localhost, and the attacker can combine CUPS-Create-Local-Printer with printer-is-shared=true to persist a file:///... queue even though the normal FileDevice policy rejects such URIs. Printing to that queue gives an arbitrary root file overwrite; the PoC below uses that primitive to drop a sudoers fragment and demonstrate root command execution. At time of publication, there are no publicly available patches.
- Database specific
{ "cwe_ids": [ "CWE-287" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34990.json", "cna_assigner": "GitHub_M" }- References