Description (CNA)
An argument injection flaw was found in CUPS. When email notification is configured, the CUPS scheduler accepts printer subscription requests that supply a mailto notify-recipient-uri. The mailto notifier passes the recipient address to the configured sendmail program without ensuring it cannot be interpreted as command-line options. A remote attacker who can reach the CUPS service could supply a crafted recipient value starting with "-" to influence sendmail behavior. Successful exploitation depends on the installed mail transfer agent and CUPS network exposure, and may lead to execution of attacker-controlled commands with the privileges of the CUPS service user.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / Red Hat Hardened Images | unaffected 2.4.19-4.3.hum1 before * |
| Red Hat / Red Hat Enterprise Linux 10 | affected |
| Red Hat / Red Hat Enterprise Linux 8 | affected |
| Red Hat / Red Hat Enterprise Linux 9 | affected |
| Red Hat / Red Hat Enterprise Linux 9 | affected |
CWE
CWE-88
References
- https://access.redhat.com/errata/RHSA-2026:77638
- https://access.redhat.com/security/cve/CVE-2026-105326
- https://bugzilla.redhat.com/show_bug.cgi?id=2545835
- https://github.com/OpenPrinting/cups/commit/1244ed9
- https://github.com/OpenPrinting/cups/commit/611d1bd
- https://github.com/OpenPrinting/cups/security/advisories/GHSA-r4wf-366f-f6g3
ADP enrichment
No English description supplied.
No references supplied.