126 lines
5.1 KiB
JSON
126 lines
5.1 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-44561",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-05-06T20:59:00.595Z",
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"datePublished": "2026-05-15T19:34:52.060Z",
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"dateUpdated": "2026-05-15T20:22:00.557Z"
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},
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"containers": {
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"cna": {
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"title": "Open WebUI: Deactivated Channel Members Retain Full Access to Group/DM Channels",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-863",
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"lang": "en",
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"description": "CWE-863: Incorrect Authorization",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 5.4,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "LOW",
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"integrityImpact": "LOW",
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"privilegesRequired": "LOW",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/open-webui/open-webui/security/advisories/GHSA-hmgr-67hw-j2cq",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/open-webui/open-webui/security/advisories/GHSA-hmgr-67hw-j2cq"
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}
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],
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"affected": [
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{
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"vendor": "open-webui",
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"product": "open-webui",
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"versions": [
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{
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"version": "< 0.9.0",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-05-15T19:34:52.060Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the is_user_channel_member function checks whether a ChannelMember row exists but does not check the is_active field. When a user is deactivated from a group or DM channel (removed by the channel owner, or leaves voluntarily), their membership row persists with is_active=False and status='left'. Because the authorization check ignores this field, the deactivated user retains full read and write access to the channel via direct API calls. This vulnerability is fixed in 0.9.0."
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}
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],
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"source": {
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"advisory": "GHSA-hmgr-67hw-j2cq",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/open-webui/open-webui/security/advisories/GHSA-hmgr-67hw-j2cq",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-05-15T20:21:40.845370Z",
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"id": "CVE-2026-44561",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-05-15T20:22:00.557Z"
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}
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}
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]
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}
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} |