125 lines
4.9 KiB
JSON
125 lines
4.9 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-2026-27807",
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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": "2026-02-24T02:31:33.267Z",
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"datePublished": "2026-03-06T02:48:28.384Z",
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"dateUpdated": "2026-03-06T16:10:43.887Z"
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},
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"containers": {
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"cna": {
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"title": "MarkUs: YAML alias (‘billion laughs’) DoS in config upload",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-776",
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"lang": "en",
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"description": "CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')",
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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": "HIGH",
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"baseScore": 4.9,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "HIGH",
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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:H/UI:N/S:U/C:N/I:N/A:H",
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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/MarkUsProject/Markus/security/advisories/GHSA-m9rx-85mx-q9h6",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/MarkUsProject/Markus/security/advisories/GHSA-m9rx-85mx-q9h6"
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},
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{
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"name": "https://github.com/MarkUsProject/Markus/releases/tag/v2.9.4",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/MarkUsProject/Markus/releases/tag/v2.9.4"
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}
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],
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"affected": [
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{
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"vendor": "MarkUsProject",
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"product": "Markus",
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"versions": [
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{
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"version": "< 2.9.4",
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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": "2026-03-06T02:48:28.384Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "MarkUs is a web application for the submission and grading of student assignments. Prior to version 2.9.4, MarkUs allows course instructors to upload YAML files to create/update various entities (e.g., assignment settings). These YAML files are parsed with aliases enabled. This issue has been patched in version 2.9.4."
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}
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],
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"source": {
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"advisory": "GHSA-m9rx-85mx-q9h6",
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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": "2026-03-06T15:50:49.801664Z",
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"id": "CVE-2026-27807",
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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": "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": "2026-03-06T16:10:43.887Z"
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}
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}
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]
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}
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} |