CVE-2026-105326
LOW
2,5
Source: [email protected]
Attack Vector: local
Attack Complexity: high
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: low
Integrity: none
Availability: none
Description
AI Translation Available
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.
88
Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
DraftCommon Consequences
Security Scopes Affected:
Confidentiality
Integrity
Availability
Other
Potential Impacts:
Execute Unauthorized Code Or Commands
Alter Execution Logic
Read Application Data
Modify Application Data
Applicable Platforms
Languages:
Not Language-Specific, PHP
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