In Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7.1, the remote image blocking feature can be bypassed via a crafted CSS var() value in an e-mail message, which may lead to information disclosure or access-control bypass.
{
"cna_assigner": "mitre",
"cwe_ids": [
"CWE-669"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48846.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "1.6.0"
},
{
"fixed": "1.6.16"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "1.7.0"
},
{
"fixed": "1.7.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"original_tag": "1.7.1",
"range": [
{
"fixed": "d40ec266240f2456a52c24ef2848e18bbfb5c300"
}
],
"source": "REFERENCES_TAG"
},
{
"range": [
{
"fixed": "59cca80908a61e662c5f81741449e9aeb91e8abe"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "1.6.16",
"range": [
{
"fixed": "ea1798a6fbf060abcc0ba73b2435036bf8016a5a"
}
],
"source": "REFERENCES_TAG"
},
{
"range": [
{
"fixed": "852350486b88b35b8544e8a630fad89e99e2150a"
}
],
"source": "REFERENCES_COMMIT"
}
]
}