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4 files changed

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{
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"schema_version": "1.4.0",
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"id": "GHSA-ff85-qw3h-g9vp",
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"modified": "2025-11-17T17:58:31Z",
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"published": "2025-11-14T09:30:27Z",
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"aliases": [
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"CVE-2025-55073"
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],
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"summary": "Mattermost allows an attacker to edit arbitrary posts via a crafted MSTeams plugin OAuth redirect URL",
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"details": "Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11, 10.12.x <= 10.12.0 fail to validate the relationship between the post being updated and the MSTeams plugin OAuth flow which allows an attacker to edit arbitrary posts via a crafted MSTeams plugin OAuth redirect URL.",
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"severity": [
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{
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"type": "CVSS_V3",
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"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L"
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}
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],
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"affected": [
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{
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"package": {
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"ecosystem": "Go",
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"name": "github.com/mattermost/mattermost-server"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "10.11.0"
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},
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{
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"fixed": "10.11.4"
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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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"package": {
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"ecosystem": "Go",
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"name": "github.com/mattermost/mattermost-server"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "10.5.0"
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},
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{
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"fixed": "10.5.12"
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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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"package": {
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"ecosystem": "Go",
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"name": "github.com/mattermost/mattermost-server"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "10.12.0"
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},
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{
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"fixed": "10.12.1"
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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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"package": {
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"ecosystem": "Go",
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"name": "github.com/mattermost/mattermost/server/v8"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "0"
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},
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{
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"fixed": "8.0.0-20250929212932-a41db04d2746"
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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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"references": [
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{
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"type": "ADVISORY",
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-55073"
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},
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{
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"type": "WEB",
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"url": "https://github.com/mattermost/mattermost/commit/375ce229f4923205394d8f27925372b2cbf28130"
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},
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{
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"type": "WEB",
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"url": "https://github.com/mattermost/mattermost/commit/6c288aa62bb3343183ec1d0a06360d14aa0193e9"
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},
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{
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"type": "WEB",
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"url": "https://github.com/mattermost/mattermost/commit/a41db04d2746ab549d056db4ede4cd803f64989c"
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},
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{
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"type": "WEB",
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"url": "https://github.com/mattermost/mattermost/commit/b822cea06bf5683a176e2c92711241bd29cd9389"
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},
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{
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"type": "WEB",
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"url": "https://github.com/mattermost/mattermost/commit/e47349ea0fc072ee1dfb196d9bb1c8fd1a589224"
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},
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{
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"type": "PACKAGE",
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"url": "https://github.com/mattermost/mattermost"
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},
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{
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"type": "WEB",
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"url": "https://mattermost.com/security-updates"
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}
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],
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"database_specific": {
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"cwe_ids": [
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"CWE-306"
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],
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"severity": "MODERATE",
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"github_reviewed": true,
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"github_reviewed_at": "2025-11-17T17:58:31Z",
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"nvd_published_at": "2025-11-14T08:15:45Z"
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}
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}
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{
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"schema_version": "1.4.0",
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"id": "GHSA-mqp8-pgg5-7x7m",
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"modified": "2025-11-17T17:58:51Z",
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"published": "2025-11-14T12:30:18Z",
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"aliases": [
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"CVE-2025-11794"
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],
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"summary": "Mattermost allows system administrators to access password hashes and MFA secrets",
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"details": "Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11, 10.12.x <= 10.12.0 fail to sanitize user data which allows system administrators to access password hashes and MFA secrets via the POST /api/v4/users/{user_id}/email/verify/member endpoint",
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"severity": [
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{
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"type": "CVSS_V3",
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"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N"
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}
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],
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"affected": [
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{
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"package": {
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"ecosystem": "Go",
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"name": "github.com/mattermost/mattermost-server"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "10.11.0"
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},
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{
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"fixed": "10.11.4"
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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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"package": {
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"ecosystem": "Go",
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"name": "github.com/mattermost/mattermost-server"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "10.5.0"
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},
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{
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"fixed": "10.5.12"
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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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"package": {
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"ecosystem": "Go",
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"name": "github.com/mattermost/mattermost-server"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "10.12.0"
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},
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{
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"fixed": "10.12.1"
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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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"package": {
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"ecosystem": "Go",
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"name": "github.com/mattermost/mattermost/server/v8"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "0"
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},
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{
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"fixed": "8.0.0-20250929212932-a41db04d2746"
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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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"references": [
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{
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"type": "ADVISORY",
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-11794"
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},
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{
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"type": "WEB",
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"url": "https://github.com/mattermost/mattermost/commit/375ce229f4923205394d8f27925372b2cbf28130"
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},
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{
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"type": "WEB",
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"url": "https://github.com/mattermost/mattermost/commit/6c288aa62bb3343183ec1d0a06360d14aa0193e9"
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},
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{
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"type": "WEB",
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"url": "https://github.com/mattermost/mattermost/commit/a41db04d2746ab549d056db4ede4cd803f64989c"
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},
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{
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"type": "WEB",
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"url": "https://github.com/mattermost/mattermost/commit/b822cea06bf5683a176e2c92711241bd29cd9389"
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},
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{
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"type": "WEB",
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"url": "https://github.com/mattermost/mattermost/commit/e47349ea0fc072ee1dfb196d9bb1c8fd1a589224"
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},
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{
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"type": "PACKAGE",
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"url": "https://github.com/mattermost/mattermost"
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},
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{
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"type": "WEB",
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"url": "https://mattermost.com/security-updates"
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}
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],
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"database_specific": {
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"cwe_ids": [
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"CWE-200"
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],
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"severity": "MODERATE",
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"github_reviewed": true,
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"github_reviewed_at": "2025-11-17T17:58:51Z",
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"nvd_published_at": "2025-11-14T11:15:45Z"
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}
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}

advisories/unreviewed/2025/11/GHSA-ff85-qw3h-g9vp/GHSA-ff85-qw3h-g9vp.json

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advisories/unreviewed/2025/11/GHSA-mqp8-pgg5-7x7m/GHSA-mqp8-pgg5-7x7m.json

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