2.5
Low
CVE-2026-105326 An argument injection flaw was found in CUPS
Description
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 products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 | Versions not published | |
| Red Hat Enterprise Linux 8 | Versions not published | |
| Red Hat Enterprise Linux 9 | Versions not published | |
| Red Hat Hardened Images 2.4 | earliest → < 2.4.19-4.3.hum1 | 2.4.19-4.3.hum1 |
References
- RHSA-2026:77638 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2545835 bugzilla.redhat.com
- github.com github.com
- github.com github.com
- github.com github.com
Timeline
- Published
- Last modified
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