CVE-2026-48847
low
CVSS v3
3.7
CVSS v2
—
VIR risk
3.7
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.
Predictions
Exploit likelihood
47%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-48847
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bullseye | affected | |
| debian | sid | fixed | 1.6.16+dfsg-1 |
| debian | bookworm | fixed | 1.6.5+dfsg-1+deb12u9 |
| debian | trixie | fixed | 1.6.16+dfsg-0+deb13u1 |
References
- 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
- https://security-tracker.debian.org/tracker/CVE-2026-48847
CWEs
CWE-669
Verify integrity in audit chain (admin only). AS-IS.