Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 contains an object injection primitive in rcube_session::unserialize(). A session key prefixed with “!” was treated as having no value, and the reconstructed serialized string was emitted with a key but no corresponding value, desynchronizing the remainder of the input so that following session data was interpreted as a serialized value. This yields a PHP object injection primitive for an attacker able to influence stored session data. Upstream fixed this in the commit “Fix object injection primitive in rcube_session::unserialize() via “!”-prefixed session keys”, which rejects such keys.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 22 Oct 2026 06:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Object Injection via Session Deserialization in Roundcube |
Thu, 22 Oct 2026 02:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 contains an object injection primitive in rcube_session::unserialize(). A session key prefixed with “!” was treated as having no value, and the reconstructed serialized string was emitted with a key but no corresponding value, desynchronizing the remainder of the input so that following session data was interpreted as a serialized value. This yields a PHP object injection primitive for an attacker able to influence stored session data. Upstream fixed this in the commit “Fix object injection primitive in rcube_session::unserialize() via “!”-prefixed session keys”, which rejects such keys. | |
| First Time appeared |
Roundcube
Roundcube webmail |
|
| Weaknesses | CWE-502 | |
| CPEs | cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Roundcube
Roundcube webmail |
|
| References |
|
|
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-10-22T01:48:23.338Z
Reserved: 2026-10-22T01:48:22.989Z
Link: CVE-2026-114724
No data.
Status : Received
Published: 2026-10-22T02:17:00.343
Modified: 2026-10-22T02:17:00.343
Link: CVE-2026-114724
No data.
OpenCVE Enrichment
Updated: 2026-10-22T07:45:01Z
Weaknesses