CVE-2026-48847
published 2026-05-25CVE-2026-48847: Roundcube Webmail 1.6.x before 1.6.16, and 1.7.x before 1.7.1 allows pre-authentication arbitrary file deletion via redis/memcache session poisoning bypass.
PriorityP421low3.7CVSS 3.1
AVNACHPRNUINSUCNINAL
EPSS
0.43%
34.7th percentile
Roundcube Webmail 1.6.x before 1.6.16, and 1.7.x before 1.7.1 allows pre-authentication arbitrary file deletion via redis/memcache session poisoning bypass.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| roundcube | webmail | >= 1.6.0 < 1.6.16 | 1.6.16 |
| roundcube | webmail | >= 1.7.0 < 1.7.1 | 1.7.1 |
CVSS provenance
nvdv3.13.7LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
cvelistv5v3.13.7LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-9vwp-h229-h4cm: Roundcube Webmail 1
ghsa_unreviewed·2026-05-26
CVE-2026-48847 [LOW] CWE-669 GHSA-9vwp-h229-h4cm: Roundcube Webmail 1
Roundcube Webmail 1.6.x before 1.6.16, and 1.7.x before 1.7.1 allows pre-authentication arbitrary file deletion via redis/memcache session poisoning bypass.
VulDB
Roundcube Webmail up to 1.6.15/1.7.0 redis/memcache resource transfer
vuldb·2026-05-25
CVE-2026-48847 [LOW] Roundcube Webmail up to 1.6.15/1.7.0 redis/memcache resource transfer
A vulnerability, which was classified as problematic, has been found in Roundcube Webmail up to 1.6.15/1.7.0. This vulnerability affects unknown code of the component redis/memcache. The manipulation leads to incorrect resource transfer.
This vulnerability is referenced as CVE-2026-48847. Remote exploitation of the attack is possible. No exploit is available.
It is advisable to upgrade the affected component.
CVEList
CVE-2026-48847: Roundcube Webmail 1
cvelistv5·2026-05-25·CVSS 3.7
CVE-2026-48847 [LOW] CWE-669 CVE-2026-48847: Roundcube Webmail 1
Roundcube Webmail 1.6.x before 1.6.16, and 1.7.x before 1.7.1 allows pre-authentication arbitrary file deletion via redis/memcache session poisoning bypass.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-48847 roundcubemail: arbitrary file deletion via redis/memcache session poisoning bypass [epel-all]
bugzilla·2026-05-26·CVSS 3.7
CVE-2026-48847 [LOW] CVE-2026-48847 roundcubemail: arbitrary file deletion via redis/memcache session poisoning bypass [epel-all]
CVE-2026-48847 roundcubemail: arbitrary file deletion via redis/memcache session poisoning bypass [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-48847 roundcubemail: arbitrary file deletion via redis/memcache session poisoning bypass [fedora-all]
bugzilla·2026-05-26·CVSS 3.7
CVE-2026-48847 [LOW] CVE-2026-48847 roundcubemail: arbitrary file deletion via redis/memcache session poisoning bypass [fedora-all]
CVE-2026-48847 roundcubemail: arbitrary file deletion via redis/memcache session poisoning bypass [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-48847 roundcubemail: arbitrary file deletion via redis/memcache session poisoning bypass
bugzilla·2026-05-25·CVSS 3.7
CVE-2026-48847 [LOW] CVE-2026-48847 roundcubemail: arbitrary file deletion via redis/memcache session poisoning bypass
CVE-2026-48847 roundcubemail: arbitrary file deletion via redis/memcache session poisoning bypass
Roundcube Webmail 1.6.x before 1.6.16, and 1.7.x before 1.7.1 allows pre-authentication arbitrary file deletion via redis/memcache session poisoning bypass.
https://github.com/roundcube/roundcubemail/commit/703318e6a59515b73b0d8aa2a91e346b02f56baahttps://github.com/roundcube/roundcubemail/commit/a4eb375b98cc3d055de665c34efc729dd8ef272ahttps://github.com/roundcube/roundcubemail/releases/tag/1.6.16https://github.com/roundcube/roundcubemail/releases/tag/1.7.1https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1
2026-05-25
Published