CVE-2026-55467
- Source
- https://cve.org/CVERecord?id=CVE-2026-55467
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55467.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-55467
- Aliases
-
- GHSA-69qc-prxg-h2c7
- Downstream
- Published
- 2026-10-15T17:08:24Z
- Modified
- 2026-10-16T02:47:47Z
- Severity
-
- 2.5 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
- Summary
- CUPS fax option values bypass the CVE-2026-34980 control-character sanitizer (incomplete fix)
- Details
-
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to 2.4.20, the cupsdCreateJob option-string builder in scheduler/job.c maps attacker-controlled destination-uri and pre-dial-string values from a configured fax queue to the phone and faxPrefix options. Unlike ordinary IPP job attributes, these mapped fax values bypass the control-character sanitizer and are copied directly into the filter options argument. A user permitted to submit a job can therefore inject control characters into the downstream option stream. The reporter states that a downstream fax filter passing these values to a shell or modem command could execute code as lp, while the maintainer states that CUPS has no confidentiality or integrity impact because the only known code-executing filter is optional Foomatic and addressed separately, leaving possible disruption of the affected queue. This issue is fixed in version 2.4.20.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-150", "CWE-93", "CWE-94" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55467.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55467.json
- https://github.com/OpenPrinting/cups/commit/0cf4e7814d6810ed3c454222bce3aa342d541681
- https://github.com/OpenPrinting/cups/commit/a9e7e7a3a019d0fa063d29409d3f82e4c6d5a008
- https://github.com/OpenPrinting/cups/releases/tag/v2.4.20
- https://github.com/OpenPrinting/cups/security/advisories/GHSA-69qc-prxg-h2c7
- https://nvd.nist.gov/vuln/detail/CVE-2026-55467