CVE-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

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LOW

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

Published May 25, 2026

3.7

LOW

CVSS 3.1

EPSS 0.54%

Description

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 products

Vendor Roundcube Product Webmail Default
unaffected
Affected
- ≥ 1.6.0, < 1.6.16
- ≥ 1.7.0, < 1.7.1

Default status is the baseline for the product. Each version can override it (patched versions can be marked unaffected).

Vendor	Product	Default status	Versions
Roundcube	Webmail	unaffected	Affected ≥ 1.6.0, < 1.6.16 ≥ 1.7.0, < 1.7.1

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-669

References (6)

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-31724		Advisory
https://github.com/roundcube/roundcubemail/commit/703318e6a59515b73b0d8aa2a91e346b02f56baa
https://github.com/roundcube/roundcubemail/commit/a4eb375b98cc3d055de665c34efc729dd8ef272a
https://github.com/roundcube/roundcubemail/releases/tag/1.6.16
https://github.com/roundcube/roundcubemail/releases/tag/1.7.1
https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published May 25, 2026

Updated May 26, 2026

Reserved May 25, 2026

Link CVE-2026-48847

CISA Vulnrichment

Updated May 26, 2026

NVD

Status Deferred

Modified Jul 24, 2026

Link CVE-2026-48847

Red Hat

No data

ENISA EUVD

Assigner mitre

Published May 25, 2026

Updated May 26, 2026

Link EUVD-2026-31724

GitHub

No data