Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a mail header injection vulnerability. rcmail_sendmail stripped newline characters only from the Subject and Organization headers, leaving other header values taken from request parameters unsanitized, so a remote authenticated attacker could inject arbitrary headers into an outgoing message via the References, In-Reply-To, Message-ID and From parameters. Upstream fixed this in the commit “Fix mail header injection via References/In-Reply-To/Message-ID/From parameters”, which normalizes whitespace in every string header value.
{
"cna_assigner": "mitre",
"cwe_ids": [
"CWE-99"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114725.json",
"unresolved_ranges": [
{
"extracted_events": [
{
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{
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{
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{
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{
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}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
},
{
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{
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{
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{
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}
],
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}
]
},
{
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{
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{
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],
"source": "DESCRIPTION"
}
]
}
]
}{
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{
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{
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}