Vulnerability advisory

CVE-2026-55805

Drupal core - Moderately critical - Cross-site scripting - SA-CORE-2026-012

Published Aug 25, 2026Updated Oct 28, 2026OSV record ↗

Also known as DRUPAL-CORE-2026-012

Severity

CVSS 3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected versions

Repository

Affected commits	Fixed by commit
GIT git.drupalcode.org/project/drupal ↗
All commits before d5bd34f95553914155b1f64a74ecc184273c8ccf	`d5bd34f95553914155b1f64a74ecc184273c8ccf`
Not specified	`140f94ff1051644c4416c7ed30cc5dd1f14507b2`
Not specified	`09d3d7fd4a638e3cc53eff60922765ad3af19c66`
Not specified	`338d58439d5b59d92ac9519ad81ffd916b673841`
ac5da07ad88571dbb31dfb52f055bb0d4063f598 to before b72f41bba3ab748dc1d4c29eca5e9e7fe97b31eb	`b72f41bba3ab748dc1d4c29eca5e9e7fe97b31eb`
f68a8e2a206e804342e0b70eae841abc5682b23b to before 1eabaf9ecfc3d2308a12e9146d84bb51bcf0d48b	`1eabaf9ecfc3d2308a12e9146d84bb51bcf0d48b`
Also listed as affected (115) `10.6.12` `11.3.13` `11.4.3` `11.4.2` `11.4.1` `11.4.0` `10.6.10` `11.3.11` `10.6.8` `11.3.9` `11.3.8` `10.6.6` `11.3.6` `10.6.5` `11.3.5` `10.6.4` `11.3.4` `10.6.3` `11.3.3` `10.6.2` `11.3.2` `11.3.1` `10.6.1` `11.3.0` `10.6.0` `10.6.0-rc1` `10.6.0-beta1` `11.2.0-rc2` `10.5.0-beta1` `11.2.0-beta1` `11.2.0-alpha1` `11.1.0-rc1` `11.1.0-beta1` `11.0.0-beta1` `11.0.0-alpha1` `10.1.0-alpha1` `10.0.0-alpha5` `10.0.0-alpha4` `10.0.0-alpha3` `10.0.0-alpha1` `9.0.0-alpha2` `9.0.0-alpha1` `8.1.0-beta1` `8.0.0` `8.0.0-rc4` `8.0.0-rc3` `8.0.0-rc2` `8.0.0-rc1` `8.0.0-beta16` `8.0.0-beta15` `8.0.0-beta14` `8.0.0-beta13` `8.0.0-beta12` `8.0.0-beta11` `8.0.0-beta10` `8.0.0-beta9` `8.0.0-beta7` `8.0.0-beta6` `8.0.0-beta5` `8.0.0-beta4` `8.0.0-beta3` `8.0.0-beta2` `8.0.0-beta1` `8.0.0-alpha15` `8.0.0-alpha14` `8.0-alpha13` `8.0-alpha12` `8.0-alpha11` `8.0-alpha10` `8.0-alpha9` `8.0-alpha8` `8.0-alpha7` `8.0-alpha6` `8.0-alpha5` `8.0-alpha4` `8.0-alpha3` `8.0-alpha2` `7.0` `7.0-rc-4` `7.0-rc-3` `7.0-rc-2` `7.0-rc-1` `7.0-beta3` `7.0-beta2` `7.0-beta1` `7.0-alpha7` `7.0-alpha6` `7.0-alpha5` `7.0-alpha4` `7.0-alpha3` `7.0-alpha2` `7.0-alpha1` `7.0-unstable-10` `7.0-unstable-7` `7.0-unstable-6` `7.0-unstable-5` `7.0-unstable-4` `7.0-unstable-3` `7.0-unstable-2` `7.0-unstable-1` `6.0-rc-3` `6.0-rc-2` `6.0-rc-1` `6.0-beta-4` `6.0-beta-3` `6.0-beta-2` `6.0-beta-1` `5.0-rc-2` `5.0-rc-1` `5.0-beta-2` `5.0-beta-1` `3.0.1` `2.0` `1.0` `start`

Description

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Drupal core allows Stored XSS. This issue affects Drupal core versions: from 0.0.0 to 10.6.13, from 11.3.0 to 11.3.14, from 11.4.0 to 11.4.4, from 0.0.0 to 11.0., from 0.0.0 to 11.1., from 0.0.0 to 11.2.*.

CVE-2026-55805

Affected versions

Repository

Description

References