CVE-2026-48847 json
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…
published 2026-05-25 5 mo ago modified 2026-07-24 3 mo ago also EUVD-2026-31724
- cvss
- 3.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Roundcube Webmail 1.6.16, 1.7.1
- roundcube Debian 12 1.6.5+dfsg-1+deb12u9
- roundcube Debian 13 1.6.16+dfsg-0+deb13u1
- roundcube Debian 14 1.6.16+dfsg-1
debian advisories DEBIAN-CVE-2026-48847
- roundcubemail openSUSE Tumbleweed 1.6.16-2.1
opensuse advisories openSUSE-SU-2026:10869-1
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2026-48847 updated cvss 3.7
roundcubemail: arbitrary file deletion via redis/memcache session poisoning bypass
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5 mo ago
Exploit prediction
0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L |
Affected products
- Roundcube Webmail
Classification
- Weakness
-
- CWE-669 Incorrect Resource Transfer Between Spheres
References
- github.com /roundcube/roundcubemail/commit/a4eb375b98cc3d055de665c34efc729dd8ef272a
- github.com /roundcube/roundcubemail/commit/703318e6a59515b73b0d8aa2a91e346b02f56baa
- roundcube.net /news/2026/05/24/security-updates-1.6.16-and-1.7.1
- github.com /roundcube/roundcubemail/releases/tag/1.7.1
- github.com /roundcube/roundcubemail/releases/tag/1.6.16
Sources
- CVE List CVE-2026-48847
- NVD CVE-2026-48847
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.