Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an improper authentication vulnerability in multi-host installations.
Impact
Roundcube Webmail versions before 1.6.20 and 1.7.x before 1.7.5 have an improper authentication vulnerability in multi-host installations, allowing a login to be resolved to a user account belonging to a different IMAP host. The weakness is due to rcube_user::query() not qualifying the lookup by IMAP host when a user logs in with an alias address. This affects versions 1.6.0 to 1.6.20 and 1.7.0 to 1.7.5.
Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.Affected packages
Affected products
Vendor version evidence. Product records are separate from automatic dependency matching.
Roundcube · mitre
Webmail
2 ranges
Roundcube · mitre
Webmail
Compare with this publisher’s ranges. This does not inspect your installation.
affected
1.6.0 → before 1.6.20
semver versions
1.7.0 → before 1.7.5
semver versions
Other versions: unaffected
Original source description
Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an improper authentication vulnerability in multi-host installations. When a user logs in with an alias address, rcube_user::query() matched the address against identity records without qualifying the lookup by IMAP host, so a login could be resolved to a user account belonging to a different IMAP host. Upstream fixed this in the commit “Fix bug where an alias login wasn’t qualified by IMAP host”.
Inside the record
Evidence available
Describes the evidence in this view, not whether the product is safe.
Original records
CVE-2026-114732View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.
cve.new JSON →Underlying weaknesses
The source’s classification of what caused the vulnerability.
Environment requirements
These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.
mitre · platform conditions
Any condition may hold
Vulnerable product
cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*From (inclusive): 1.6.0
Before: 1.6.20
Vulnerable product
cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*From (inclusive): 1.7.0
Before: 1.7.5
Original applicability statements
[
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
"versionStartIncluding": "1.6.0",
"versionEndExcluding": "1.6.20"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
"versionStartIncluding": "1.7.0",
"versionEndExcluding": "1.7.5"
}
]
}
]
}
]Contributing organizations · 2
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Additional data publisher
What changed
Follow changesLarge field values are marked as truncated previews. Original source snapshots remain retained.