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.
{
"cna_assigner": "mitre",
"cwe_ids": [
"CWE-502"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114724.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"introduced": "1.6.0"
},
{
"fixed": "1.6.20"
},
{
"introduced": "1.7.0"
},
{
"fixed": "1.7.5"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
},
{
"extracted_events": [
{
"range": [
{
"introduced": "1.6.0"
},
{
"fixed": "1.6.20"
},
{
"introduced": "1.7.0"
},
{
"fixed": "1.7.5"
}
],
"source": "CPE_FIELD",
"strategy": "CPEApplicability"
}
]
},
{
"extracted_events": [
{
"range": [
{
"fixed": "1.6.20"
},
{
"introduced": "1.7.x"
},
{
"fixed": "1.7.5"
}
],
"source": "DESCRIPTION"
}
]
}
]
}{
"extracted_events": [
{
"range": [
{
"fixed": "93284f3f0e13f99af37fc3b81861e142eea8a922"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "1.7.5",
"range": [
{
"fixed": "26d1b077f0c910a16c44c1862fe26e15f0bb3685"
}
],
"source": "REFERENCES_TAG"
},
{
"original_tag": "1.6.20",
"range": [
{
"fixed": "1dd910522e73318447ed6e20bed1efd7adeb240a"
}
],
"source": "REFERENCES_TAG"
},
{
"range": [
{
"fixed": "833770d3d3c35cfde74cc2614d368f25a75b6f99"
}
],
"source": "REFERENCES_COMMIT"
}
]
}