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.
Metrics
Affected Vendors & Products
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