CVE-2026-114726 (GCVE-0-2026-114726)
Vulnerability from cvelistv5
Published
2026-10-22 01:55
Modified
2026-10-28 02:17
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-99 - Improper Control of Resource Identifiers ('Resource Injection')
Summary
Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a mail header injection vulnerability in the Bounce (resend) action. rcube_mime::decode_address_list() did not strip control characters from the decoded display name, so a received message whose From display-name carries CRLF sequences in an encoded word could inject arbitrary headers into the message emitted when the user bounces it. Upstream fixed this in the commit “Fix mail header injection via the From display-name in the Bounce (resend) action”.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-114726",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-28T02:17:01.229186Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-28T02:17:15.141Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Webmail",
"repo": "https://github.com/roundcube/roundcubemail/",
"vendor": "Roundcube",
"versions": [
{
"lessThan": "1.6.20",
"status": "affected",
"version": "1.6.0",
"versionType": "semver"
},
{
"lessThan": "1.7.5",
"status": "affected",
"version": "1.7.0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
"versionEndExcluding": "1.6.20",
"versionStartIncluding": "1.6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
"versionEndExcluding": "1.7.5",
"versionStartIncluding": "1.7.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a mail header injection vulnerability in the Bounce (resend) action. rcube_mime::decode_address_list() did not strip control characters from the decoded display name, so a received message whose From display-name carries CRLF sequences in an encoded word could inject arbitrary headers into the message emitted when the user bounces it. Upstream fixed this in the commit \u201cFix mail header injection via the From display-name in the Bounce (resend) action\u201d."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-99",
"description": "CWE-99 Improper Control of Resource Identifiers (\u0027Resource Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-22T01:55:25.693Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"issue-tracking",
"third-party-advisory"
],
"url": "https://bugs.debian.org/1151279"
},
{
"tags": [
"patch"
],
"url": "https://github.com/roundcube/roundcubemail/commit/d3a35545fdaf72b02a9a4d670064895488e9d9d0"
},
{
"tags": [
"vendor-advisory",
"release-notes"
],
"url": "https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5"
},
{
"tags": [
"release-notes",
"patch"
],
"url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7.5"
},
{
"tags": [
"release-notes",
"patch"
],
"url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.20"
},
{
"tags": [
"patch"
],
"url": "https://github.com/roundcube/roundcubemail/commit/3a136465c965776a5f636587187626985dae4f3b"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-114726",
"datePublished": "2026-10-22T01:55:25.693Z",
"dateReserved": "2026-10-22T01:55:25.334Z",
"dateUpdated": "2026-10-28T02:17:15.141Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-114726\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-28T02:17:01.229186Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-28T02:17:11.492Z\"}}], \"cna\": {\"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 5.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"repo\": \"https://github.com/roundcube/roundcubemail/\", \"vendor\": \"Roundcube\", \"product\": \"Webmail\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.6.0\", \"lessThan\": \"1.6.20\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"1.7.0\", \"lessThan\": \"1.7.5\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://bugs.debian.org/1151279\", \"tags\": [\"issue-tracking\", \"third-party-advisory\"]}, {\"url\": \"https://github.com/roundcube/roundcubemail/commit/d3a35545fdaf72b02a9a4d670064895488e9d9d0\", \"tags\": [\"patch\"]}, {\"url\": \"https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5\", \"tags\": [\"vendor-advisory\", \"release-notes\"]}, {\"url\": \"https://github.com/roundcube/roundcubemail/releases/tag/1.7.5\", \"tags\": [\"release-notes\", \"patch\"]}, {\"url\": \"https://github.com/roundcube/roundcubemail/releases/tag/1.6.20\", \"tags\": [\"release-notes\", \"patch\"]}, {\"url\": \"https://github.com/roundcube/roundcubemail/commit/3a136465c965776a5f636587187626985dae4f3b\", \"tags\": [\"patch\"]}], \"x_generator\": {\"engine\": \"CVE-Request-form 0.0.1\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a mail header injection vulnerability in the Bounce (resend) action. rcube_mime::decode_address_list() did not strip control characters from the decoded display name, so a received message whose From display-name carries CRLF sequences in an encoded word could inject arbitrary headers into the message emitted when the user bounces it. Upstream fixed this in the commit \\u201cFix mail header injection via the From display-name in the Bounce (resend) action\\u201d.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-99\", \"description\": \"CWE-99 Improper Control of Resource Identifiers (\u0027Resource Injection\u0027)\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"1.6.20\", \"versionStartIncluding\": \"1.6.0\"}, {\"criteria\": \"cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"1.7.5\", \"versionStartIncluding\": \"1.7.0\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"shortName\": \"mitre\", \"dateUpdated\": \"2026-10-22T01:55:25.693Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-114726\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-28T02:17:15.141Z\", \"dateReserved\": \"2026-10-22T01:55:25.334Z\", \"assignerOrgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"datePublished\": \"2026-10-22T01:55:25.693Z\", \"assignerShortName\": \"mitre\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…