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CVE-2026-105326

CVE-2026-105326 · Cups: cups: argument injection in mailto notifier via notify-recipient-uri

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 2.5 · Low · EPSS 0.2%

Published
Updated

Stack: system

Affected products and versions

  • red hat hardened images

    Versions
    • ≥ 2.4.19-4.3.hum1: Not affected (rpm)

    No fix published

  • red hat enterprise linux 10

    No fix published

  • red hat enterprise linux 8

    No fix published

  • red hat enterprise linux 9

    No fix published

  • cups Debian:12

    Versions
    • 2.4.10-1
    • 2.4.10-2
    • 2.4.10-3
    • 2.4.10-4
    • 2.4.14-1
    • 2.4.15-1
    • 2.4.16-1
    • 2.4.17-1
    • 2.4.18-1
    • 2.4.2-3
    • 2.4.2-3+deb12u1
    • 2.4.2-3+deb12u2
    • 2.4.2-3+deb12u3
    • 2.4.2-3+deb12u4
    • 2.4.2-3+deb12u5
    • 2.4.2-3+deb12u6
    • 2.4.2-3+deb12u7
    • 2.4.2-3+deb12u8
    • 2.4.2-3+deb12u9
    • 2.4.2-4
    • 2.4.2-5
    • 2.4.2-6
    • 2.4.7-1
    • 2.4.7-1.1
    • 2.4.7-1.2
    • 2.4.7-2
    • 2.4.7-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • cups Debian:13

    Versions
    • 2.4.10-3
    • 2.4.10-3+deb13u1
    • 2.4.10-3+deb13u2
    • 2.4.10-4
    • 2.4.14-1
    • 2.4.15-1
    • 2.4.16-1
    • 2.4.17-1
    • 2.4.18-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • cups Debian:14

    Versions
    • 2.4.10-3
    • 2.4.10-4
    • 2.4.14-1
    • 2.4.15-1
    • 2.4.16-1
    • 2.4.17-1
    • 2.4.18-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • cups Ubuntu:Pro:16.04:LTS

    Versions
    • 2.1.0-4ubuntu3
    • 2.1.0-5
    • 2.1.0-6
    • 2.1.0-6ubuntu1
    • 2.1.0-7
    • 2.1.2-1
    • 2.1.2-2
    • 2.1.3-1
    • 2.1.3-1build1
    • 2.1.3-3
    • 2.1.3-4
    • 2.1.3-4ubuntu0.2
    • 2.1.3-4ubuntu0.3
    • 2.1.3-4ubuntu0.4
    • 2.1.3-4ubuntu0.5
    • 2.1.3-4ubuntu0.6
    • 2.1.3-4ubuntu0.7
    • 2.1.3-4ubuntu0.8
    • 2.1.3-4ubuntu0.9
    • 2.1.3-4ubuntu0.10
    • 2.1.3-4ubuntu0.11
    • 2.1.3-4ubuntu0.11+esm1
    • 2.1.3-4ubuntu0.11+esm2
    • 2.1.3-4ubuntu0.11+esm3
    • 2.1.3-4ubuntu0.11+esm4
    • 2.1.3-4ubuntu0.11+esm5
    • 2.1.3-4ubuntu0.11+esm6
    • 2.1.3-4ubuntu0.11+esm7
    • 2.1.3-4ubuntu0.11+esm8
    • 2.1.3-4ubuntu0.11+esm9
    • 2.1.3-4ubuntu0.11+esm11
    • 2.1.3-4ubuntu0.11+esm12
    • 2.1.3-4ubuntu0.11+esm13
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • cups Ubuntu:Pro:18.04:LTS

    Versions
    • 2.2.4-7ubuntu2
    • 2.2.5-2
    • 2.2.6-2
    • 2.2.6-3
    • 2.2.6-4
    • 2.2.6-5
    • 2.2.7-1ubuntu1
    • 2.2.7-1ubuntu2
    • 2.2.7-1ubuntu2.1
    • 2.2.7-1ubuntu2.2
    • 2.2.7-1ubuntu2.3
    • 2.2.7-1ubuntu2.4
    • 2.2.7-1ubuntu2.5
    • 2.2.7-1ubuntu2.6
    • 2.2.7-1ubuntu2.7
    • 2.2.7-1ubuntu2.8
    • 2.2.7-1ubuntu2.9
    • 2.2.7-1ubuntu2.10
    • 2.2.7-1ubuntu2.10+esm1
    • 2.2.7-1ubuntu2.10+esm2
    • 2.2.7-1ubuntu2.10+esm3
    • 2.2.7-1ubuntu2.10+esm4
    • 2.2.7-1ubuntu2.10+esm5
    • 2.2.7-1ubuntu2.10+esm6
    • 2.2.7-1ubuntu2.10+esm7
    • 2.2.7-1ubuntu2.10+esm9
    • 2.2.7-1ubuntu2.10+esm10
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • cups Ubuntu:Pro:20.04:LTS

    Versions
    • 2.2.12-2ubuntu1
    • 2.3.0-6
    • 2.3.0-7
    • 2.3.0-7ubuntu1
    • 2.3.1-1ubuntu1
    • 2.3.1-2
    • 2.3.1-4
    • 2.3.1-7
    • 2.3.1-9ubuntu1
    • 2.3.1-9ubuntu1.1
    • 2.3.1-9ubuntu1.2
    • 2.3.1-9ubuntu1.3
    • 2.3.1-9ubuntu1.4
    • 2.3.1-9ubuntu1.5
    • 2.3.1-9ubuntu1.6
    • 2.3.1-9ubuntu1.7
    • 2.3.1-9ubuntu1.8
    • 2.3.1-9ubuntu1.9
    • 2.3.1-9ubuntu1.9+esm1
    • 2.3.1-9ubuntu1.9+esm3
    • 2.3.1-9ubuntu1.9+esm4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • cups Ubuntu:22.04:LTS

    Versions
    • 2.3.3op2-7ubuntu2
    • 2.4.1op1-1ubuntu1
    • 2.4.1op1-1ubuntu2
    • 2.4.1op1-1ubuntu3
    • 2.4.1op1-1ubuntu4
    • 2.4.1op1-1ubuntu4.1
    • 2.4.1op1-1ubuntu4.2
    • 2.4.1op1-1ubuntu4.4
    • 2.4.1op1-1ubuntu4.6
    • 2.4.1op1-1ubuntu4.7
    • 2.4.1op1-1ubuntu4.8
    • 2.4.1op1-1ubuntu4.9
    • 2.4.1op1-1ubuntu4.10
    • 2.4.1op1-1ubuntu4.11
    • 2.4.1op1-1ubuntu4.12
    • 2.4.1op1-1ubuntu4.15
    • 2.4.1op1-1ubuntu4.16
    • 2.4.1op1-1ubuntu4.20
    • 2.4.1op1-1ubuntu4.21
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • cups Ubuntu:24.04:LTS

    Versions
    • 2.4.6-0ubuntu3
    • 2.4.7-1.2ubuntu2
    • 2.4.7-1.2ubuntu3
    • 2.4.7-1.2ubuntu7
    • 2.4.7-1.2ubuntu7.1
    • 2.4.7-1.2ubuntu7.2
    • 2.4.7-1.2ubuntu7.3
    • 2.4.7-1.2ubuntu7.4
    • 2.4.7-1.2ubuntu7.7
    • 2.4.7-1.2ubuntu7.9
    • 2.4.7-1.2ubuntu7.13
    • 2.4.7-1.2ubuntu7.14
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • cups Ubuntu:26.10

    Versions
    • 2.4.16-1ubuntu1
    • 2.4.16-1ubuntu3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • cups Ubuntu:26.04:LTS

    Versions
    • 2.4.12-0ubuntu3
    • 2.4.12-0ubuntu5
    • 2.4.16-1ubuntu1
    • 2.4.16-1ubuntu1.2
    • 2.4.16-1ubuntu1.3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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