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CVE-2026-114731

CVE-2026-114731

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

Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an uncontrolled resource consumption vulnerability in the CSS proxy (the utils/modcss action). The fetched stylesheet was read into memory in full, with no size limit and no read timeout, so a stylesheet URL referencing an attacker-controlled host could be used to exhaust server memory. Upstream fixed this in the commit “Add a size limit to the CSS proxy content processing”, which caps the response at 5 MB, reads it as a stream and applies a read timeout.

CVSS 5.3 · Medium · EPSS 0.4% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • webmail

    Versions
    • ≥ 1.6.0, < 1.6.20: Affected (semver)
    • ≥ 1.7.0, < 1.7.5: Affected (semver)

    Update to 1.6.20; Update to 1.7.5

  • roundcube Debian:12

    Versions
    • 1.6.1+dfsg-1
    • 1.6.10+dfsg-1
    • 1.6.10+dfsg-2
    • 1.6.11+dfsg-1
    • 1.6.12+dfsg-1
    • 1.6.13+dfsg-1
    • 1.6.14+dfsg-1
    • 1.6.15+dfsg-1
    • 1.6.16+dfsg-1
    • 1.6.17+dfsg-1
    • 1.6.18+dfsg-1
    • 1.6.19+dfsg-1
    • 1.6.2+dfsg-1
    • 1.6.20+dfsg-1
    • 1.6.3+dfsg-1
    • 1.6.3+dfsg-1~deb12u1
    • 1.6.3+dfsg-2
    • 1.6.4+dfsg-1
    • 1.6.4+dfsg-1~deb12u1
    • 1.6.5+dfsg-1
    • 1.6.5+dfsg-1+deb12u10
    • 1.6.5+dfsg-1+deb12u11
    • 1.6.5+dfsg-1+deb12u12
    • 1.6.5+dfsg-1+deb12u2
    • 1.6.5+dfsg-1+deb12u3
    • 1.6.5+dfsg-1+deb12u4
    • 1.6.5+dfsg-1+deb12u5
    • 1.6.5+dfsg-1+deb12u6
    • 1.6.5+dfsg-1+deb12u7
    • 1.6.5+dfsg-1+deb12u8
    • 1.6.5+dfsg-1+deb12u9
    • 1.6.5+dfsg-1~deb12u1
    • 1.6.6+dfsg-1
    • 1.6.6+dfsg-2
    • 1.6.7+dfsg-1
    • 1.6.8+dfsg-1
    • 1.6.8+dfsg-2
    • 1.6.9+dfsg-1
    • 1.6.9+dfsg-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • roundcube Debian:13

    Versions
    • 1.6.11+dfsg-1
    • 1.6.12+dfsg-0+deb13u1
    • 1.6.12+dfsg-1
    • 1.6.13+dfsg-0+deb13u1
    • 1.6.13+dfsg-1
    • 1.6.14+dfsg-1
    • 1.6.15+dfsg-0+deb13u1
    • 1.6.15+dfsg-1
    • 1.6.16+dfsg-0+deb13u1
    • 1.6.16+dfsg-1
    • 1.6.17+dfsg-0+deb13u1
    • 1.6.17+dfsg-1
    • 1.6.18+dfsg-0+deb13u1
    • 1.6.18+dfsg-1
    • 1.6.19+dfsg-0+deb13u1
    • 1.6.19+dfsg-1
    Affected ranges
    • ECOSYSTEM: < 1.6.20+dfsg-0+deb13u1

    Update to 1.6.20+dfsg-0+deb13u1

  • roundcube Debian:14

    Versions
    • 1.6.11+dfsg-1
    • 1.6.12+dfsg-1
    • 1.6.13+dfsg-1
    • 1.6.14+dfsg-1
    • 1.6.15+dfsg-1
    • 1.6.16+dfsg-1
    • 1.6.17+dfsg-1
    • 1.6.18+dfsg-1
    • 1.6.19+dfsg-1
    Affected ranges
    • ECOSYSTEM: < 1.6.20+dfsg-1

    Update to 1.6.20+dfsg-1

  • roundcube Ubuntu:Pro:16.04:LTS

    Versions
    • 1.1.1+dfsg.1-2
    • 1.1.2+dfsg.1-5
    • 1.1.3+dfsg.1-1
    • 1.1.4+dfsg.1-1
    • 1.2~beta+dfsg.1-0ubuntu1
    • 1.2~beta+dfsg.1-0ubuntu1+esm1
    • 1.2~beta+dfsg.1-0ubuntu1+esm2
    • 1.2~beta+dfsg.1-0ubuntu1+esm3
    • 1.2~beta+dfsg.1-0ubuntu1+esm4
    • 1.2~beta+dfsg.1-0ubuntu1+esm5
    • 1.2~beta+dfsg.1-0ubuntu1+esm6
    • 1.2~beta+dfsg.1-0ubuntu1+esm7
    • 1.2~beta+dfsg.1-0ubuntu1+esm8
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • roundcube Ubuntu:Pro:18.04:LTS

    Versions
    • 1.3.0+dfsg.1-1
    • 1.3.1+dfsg.1-1
    • 1.3.3+dfsg.1-1
    • 1.3.3+dfsg.1-2
    • 1.3.6+dfsg.1-1
    • 1.3.6+dfsg.1-1ubuntu0.1~esm1
    • 1.3.6+dfsg.1-1ubuntu0.1~esm2
    • 1.3.6+dfsg.1-1ubuntu0.1~esm3
    • 1.3.6+dfsg.1-1ubuntu0.1~esm4
    • 1.3.6+dfsg.1-1ubuntu0.1~esm5
    • 1.3.6+dfsg.1-1ubuntu0.1~esm6
    • 1.3.6+dfsg.1-1ubuntu0.1~esm7
    • 1.3.6+dfsg.1-1ubuntu0.1~esm8
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • roundcube Ubuntu:Pro:20.04:LTS

    Versions
    • 1.3.8+dfsg.1-2
    • 1.3.10+dfsg.1-1
    • 1.4.1+dfsg.1-2
    • 1.4.2+dfsg.1-1
    • 1.4.2+dfsg.1-2
    • 1.4.3+dfsg.1-1
    • 1.4.3+dfsg.1-1ubuntu0.1~esm1
    • 1.4.3+dfsg.1-1ubuntu0.1~esm2
    • 1.4.3+dfsg.1-1ubuntu0.1~esm3
    • 1.4.3+dfsg.1-1ubuntu0.1~esm4
    • 1.4.3+dfsg.1-1ubuntu0.1~esm5
    • 1.4.3+dfsg.1-1ubuntu0.1~esm6
    • 1.4.3+dfsg.1-1ubuntu0.1~esm7
    • 1.4.3+dfsg.1-1ubuntu0.1~esm8
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • roundcube Ubuntu:Pro:22.04:LTS

    Versions
    • 1.4.11+dfsg.1-4
    • 1.5.0+dfsg.1-2
    • 1.5.0+dfsg.1-2ubuntu0.1~esm1
    • 1.5.0+dfsg.1-2ubuntu0.1~esm2
    • 1.5.0+dfsg.1-2ubuntu0.1~esm3
    • 1.5.0+dfsg.1-2ubuntu0.1~esm4
    • 1.5.0+dfsg.1-2ubuntu0.1~esm5
    • 1.5.0+dfsg.1-2ubuntu0.1~esm6
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • roundcube Ubuntu:Pro:24.04:LTS

    Versions
    • 1.6.2+dfsg-1
    • 1.6.4+dfsg-1
    • 1.6.5+dfsg-1
    • 1.6.6+dfsg-1
    • 1.6.6+dfsg-2
    • 1.6.6+dfsg-2ubuntu0.1
    • 1.6.6+dfsg-2ubuntu0.1+esm1
    • 1.6.6+dfsg-2ubuntu0.1+esm2
    • 1.6.6+dfsg-2ubuntu0.1+esm3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • roundcube Ubuntu:26.10

    Versions
    • 1.6.11+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • roundcube Ubuntu:Pro:26.04:LTS

    Versions
    • 1.6.11+dfsg-1
    • 1.6.11+dfsg-1ubuntu0.26.04.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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