In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the cmd_learn driver of the markasjunk plugin is subject to remote code execution via crafted placeholder replacement values. This issue only affects Roundcube instances using the markasjunk plugin with its cmd_learn driver.
{
"cna_assigner": "mitre",
"cwe_ids": [
"CWE-78"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74997.json"
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.6.0"
},
{
"fixed": "1.6.18"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.7.0"
},
{
"fixed": "1.7.3"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "14044f843cfacbe78b042f659e379d6b4497aa7c"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "495d211638f222336b20f4744545c53712426c2a"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "b8f90e28a46d42e79a69568cba897f8f4223d9cd"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "1.6.18",
"range": [
{
"fixed": "4a2bb87d9ea93578acb9bb03599abf754c33a33f"
}
],
"source": "REFERENCES_TAG"
},
{
"original_tag": "1.7.3",
"range": [
{
"fixed": "8473c30fd06f1aa4cfe4304ec54f54aef3b45abe"
}
],
"source": "REFERENCES_TAG"
}
]
}