186 lines
7.8 KiB
JSON
186 lines
7.8 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-2026-72721",
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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": "2026-08-10T13:48:09.545Z",
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"datePublished": "2026-08-10T15:48:30.548Z",
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"dateUpdated": "2026-08-10T16:59:07.554Z"
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},
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"containers": {
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"cna": {
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"title": "Discourse: Onebox Domain Blocklist Bypass via Case-Sensitive Comparison",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-178",
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"lang": "en",
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"description": "CWE-178: Improper Handling of Case Sensitivity",
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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": 5.3,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "LOW",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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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:N/UI:N/S:U/C:L/I:N/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/discourse/discourse/security/advisories/GHSA-3x7x-24rq-h5j6",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/discourse/discourse/security/advisories/GHSA-3x7x-24rq-h5j6"
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},
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{
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"name": "https://github.com/discourse/discourse/pull/42091",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/discourse/discourse/pull/42091"
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},
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{
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"name": "https://github.com/discourse/discourse/pull/42092",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/discourse/discourse/pull/42092"
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},
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{
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"name": "https://github.com/discourse/discourse/pull/42093",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/discourse/discourse/pull/42093"
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},
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{
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"name": "https://github.com/discourse/discourse/pull/42094",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/discourse/discourse/pull/42094"
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},
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{
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"name": "https://github.com/discourse/discourse/commit/a3e10759fef47f03d450649bb51d9e84f4c68b8f",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/discourse/discourse/commit/a3e10759fef47f03d450649bb51d9e84f4c68b8f"
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},
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{
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"name": "https://github.com/discourse/discourse/commit/c2eb6b0e5597d6f28f4be739b83300bc9c69e3cd",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/discourse/discourse/commit/c2eb6b0e5597d6f28f4be739b83300bc9c69e3cd"
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},
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{
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"name": "https://github.com/discourse/discourse/commit/caa615c371b1696982ee11ac8f3558f0f8ced584",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/discourse/discourse/commit/caa615c371b1696982ee11ac8f3558f0f8ced584"
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},
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{
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"name": "https://github.com/discourse/discourse/commit/f503971d311b7b0dfdb751ee8cfd67e8cb99f5c5",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/discourse/discourse/commit/f503971d311b7b0dfdb751ee8cfd67e8cb99f5c5"
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}
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],
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"affected": [
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{
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"vendor": "discourse",
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"product": "discourse",
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"versions": [
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{
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"version": "< 2026.1.6",
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"status": "affected"
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},
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{
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"version": ">= 2026.5.0-latest, < 2026.5.2",
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"status": "affected"
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},
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{
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"version": ">= 2026.6.0-latest, < 2026.6.1",
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"status": "affected"
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},
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{
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"version": ">= 2026.7.0-latest, < 2026.7.0",
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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": "2026-08-10T15:48:30.548Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, Onebox::DomainChecker.is_blocked? compares hostnames and SiteSetting.blocked_onebox_domains entries case-sensitively, allowing an attacker to bypass configured Onebox domain restrictions by changing character casing in a redirect target hostname. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0."
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}
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],
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"source": {
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"advisory": "GHSA-3x7x-24rq-h5j6",
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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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"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": "2026-08-10T16:58:55.983146Z",
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"id": "CVE-2026-72721",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "yes"
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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": "2026-08-10T16:59:07.554Z"
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}
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}
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]
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}
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} |