CVE-2026-26079
roundcube: Roundcube Webmail before 1.5.13 and 1.6 before 1.6.13 allows Cascading Style Sheets (CSS) injection, e.g., because co...
CVE-2026-26079 is fixed in 7 products on 1 platform, first by roundcube 1.3.6+dfsg.1-1ubuntu0.1~esm8, released February 10, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
4.7
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0036
29th percentile
Roundcube Webmail before 1.5.13 and 1.6 before 1.6.13 allows Cascading Style Sheets (CSS) injection, e.g., because comments are mishandled.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| roundcube · Debian 12.15 (bookworm) | 1.6.5+dfsg-1+deb12u7 | DEBIAN-CVE-2026-26079 | Feb 11, 2026 |
| roundcube · Debian 13.5 (trixie) | 1.6.13+dfsg-0+deb13u1 | DEBIAN-CVE-2026-26079 | Feb 11, 2026 |
| roundcube · Debian 14 | 1.6.13+dfsg-1 | DEBIAN-CVE-2026-26079 | Feb 11, 2026 |
| roundcube · Ubuntu 18.04.6 LTS (bionic) | 1.3.6+dfsg.1-1ubuntu0.1~esm8 | roundcube 1.3.6+dfsg.1-1ubuntu0.1~esm8 | Feb 10, 2026 |
| roundcube · Ubuntu 20.04 LTS (focal) | 1.4.3+dfsg.1-1ubuntu0.1~esm8 | roundcube 1.4.3+dfsg.1-1ubuntu0.1~esm8 | Feb 10, 2026 |
| roundcube · Ubuntu 22.04.1 LTS (jammy) | 1.5.0+dfsg.1-2ubuntu0.1~esm6 | roundcube 1.5.0+dfsg.1-2ubuntu0.1~esm6 | Feb 10, 2026 |
| roundcube · Ubuntu 24.04.5 LTS (noble) | 1.6.6+dfsg-2ubuntu0.1+esm3 | roundcube 1.6.6+dfsg-2ubuntu0.1+esm3 | Feb 10, 2026 |
| roundcube-core · Ubuntu 18.04.6 LTS (bionic) | 1.3.6+dfsg.1-1ubuntu0.1~esm8 | roundcube-core 1.3.6+dfsg.1-1ubuntu0.1~esm8 | Feb 10, 2026 |
| roundcube-core · Ubuntu 20.04 LTS (focal) | 1.4.3+dfsg.1-1ubuntu0.1~esm8 | roundcube-core 1.4.3+dfsg.1-1ubuntu0.1~esm8 | Feb 10, 2026 |
| roundcube-core · Ubuntu 22.04.1 LTS (jammy) | 1.5.0+dfsg.1-2ubuntu0.1~esm6 | roundcube-core 1.5.0+dfsg.1-2ubuntu0.1~esm6 | Feb 10, 2026 |
| roundcube-core · Ubuntu 24.04.5 LTS (noble) | 1.6.6+dfsg-2ubuntu0.1+esm3 | roundcube-core 1.6.6+dfsg-2ubuntu0.1+esm3 | Feb 10, 2026 |
| roundcube-mysql · Ubuntu 18.04.6 LTS (bionic) | 1.3.6+dfsg.1-1ubuntu0.1~esm8 | roundcube-mysql 1.3.6+dfsg.1-1ubuntu0.1~esm8 | Feb 10, 2026 |
| roundcube-mysql · Ubuntu 20.04 LTS (focal) | 1.4.3+dfsg.1-1ubuntu0.1~esm8 | roundcube-mysql 1.4.3+dfsg.1-1ubuntu0.1~esm8 | Feb 10, 2026 |
| roundcube-mysql · Ubuntu 22.04.1 LTS (jammy) | 1.5.0+dfsg.1-2ubuntu0.1~esm6 | roundcube-mysql 1.5.0+dfsg.1-2ubuntu0.1~esm6 | Feb 10, 2026 |
| roundcube-mysql · Ubuntu 24.04.5 LTS (noble) | 1.6.6+dfsg-2ubuntu0.1+esm3 | roundcube-mysql 1.6.6+dfsg-2ubuntu0.1+esm3 | Feb 10, 2026 |
| roundcube-pgsql · Ubuntu 18.04.6 LTS (bionic) | 1.3.6+dfsg.1-1ubuntu0.1~esm8 | roundcube-pgsql 1.3.6+dfsg.1-1ubuntu0.1~esm8 | Feb 10, 2026 |
| roundcube-pgsql · Ubuntu 20.04 LTS (focal) | 1.4.3+dfsg.1-1ubuntu0.1~esm8 | roundcube-pgsql 1.4.3+dfsg.1-1ubuntu0.1~esm8 | Feb 10, 2026 |
| roundcube-pgsql · Ubuntu 22.04.1 LTS (jammy) | 1.5.0+dfsg.1-2ubuntu0.1~esm6 | roundcube-pgsql 1.5.0+dfsg.1-2ubuntu0.1~esm6 | Feb 10, 2026 |
| roundcube-pgsql · Ubuntu 24.04.5 LTS (noble) | 1.6.6+dfsg-2ubuntu0.1+esm3 | roundcube-pgsql 1.6.6+dfsg-2ubuntu0.1+esm3 | Feb 10, 2026 |
| roundcube-plugins · Ubuntu 18.04.6 LTS (bionic) | 1.3.6+dfsg.1-1ubuntu0.1~esm8 | roundcube-plugins 1.3.6+dfsg.1-1ubuntu0.1~esm8 | Feb 10, 2026 |
| roundcube-plugins · Ubuntu 20.04 LTS (focal) | 1.4.3+dfsg.1-1ubuntu0.1~esm8 | roundcube-plugins 1.4.3+dfsg.1-1ubuntu0.1~esm8 | Feb 10, 2026 |
| roundcube-plugins · Ubuntu 22.04.1 LTS (jammy) | 1.5.0+dfsg.1-2ubuntu0.1~esm6 | roundcube-plugins 1.5.0+dfsg.1-2ubuntu0.1~esm6 | Feb 10, 2026 |
| roundcube-plugins · Ubuntu 24.04.5 LTS (noble) | 1.6.6+dfsg-2ubuntu0.1+esm3 | roundcube-plugins 1.6.6+dfsg-2ubuntu0.1+esm3 | Feb 10, 2026 |
| roundcube-sqlite3 · Ubuntu 18.04.6 LTS (bionic) | 1.3.6+dfsg.1-1ubuntu0.1~esm8 | roundcube-sqlite3 1.3.6+dfsg.1-1ubuntu0.1~esm8 | Feb 10, 2026 |
| roundcube-sqlite3 · Ubuntu 20.04 LTS (focal) | 1.4.3+dfsg.1-1ubuntu0.1~esm8 | roundcube-sqlite3 1.4.3+dfsg.1-1ubuntu0.1~esm8 | Feb 10, 2026 |
| roundcube-sqlite3 · Ubuntu 22.04.1 LTS (jammy) | 1.5.0+dfsg.1-2ubuntu0.1~esm6 | roundcube-sqlite3 1.5.0+dfsg.1-2ubuntu0.1~esm6 | Feb 10, 2026 |
| roundcube-sqlite3 · Ubuntu 24.04.5 LTS (noble) | 1.6.6+dfsg-2ubuntu0.1+esm3 | roundcube-sqlite3 1.6.6+dfsg-2ubuntu0.1+esm3 | Feb 10, 2026 |
| roundcubemail · opensuse-leap 16.0 | 1.6.13-bp160.1.1 | OPENSUSE-SU-2026:20323-1 | Mar 5, 2026 |
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