{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-77252", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-20T19:02:23.416Z", "datePublished": "2026-09-22T17:54:02.250Z", "dateUpdated": "2026-09-23T14:38:13.093Z" }, "containers": { "cna": { "title": "MCP Atlassian: JIRA_PROJECTS_FILTER and CONFLUENCE_SPACES_FILTER can be bypassed in search tools", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-284", "lang": "en", "description": "CWE-284: Improper Access Control", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1" } } ], "references": [ { "name": "https://github.com/sooperset/mcp-atlassian/security/advisories/GHSA-rqwg-9346-fjjv", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/sooperset/mcp-atlassian/security/advisories/GHSA-rqwg-9346-fjjv" }, { "name": "https://github.com/sooperset/mcp-atlassian/pull/1448", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/sooperset/mcp-atlassian/pull/1448" }, { "name": "https://github.com/sooperset/mcp-atlassian/commit/b041733473f95119dd539542a43c280737a8e460", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/sooperset/mcp-atlassian/commit/b041733473f95119dd539542a43c280737a8e460" }, { "name": "https://github.com/sooperset/mcp-atlassian/releases/tag/v0.22.0", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/sooperset/mcp-atlassian/releases/tag/v0.22.0" } ], "affected": [ { "vendor": "sooperset", "product": "mcp-atlassian", "versions": [ { "version": "< 0.22.0", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-22T17:54:02.250Z" }, "descriptions": [ { "lang": "en", "value": "MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, caller-supplied projects_filter and spaces_filter arguments can replace administrator-configured allowlists, and caller-provided project or space clauses can suppress the configured restriction. A caller can search projects or spaces outside the intended boundary when the configured Atlassian credentials can access them. The advisory traces the vulnerable input and processing flow through JIRA_PROJECTS_FILTER, CONFLUENCE_SPACES_FILTER, projects_filter, spaces_filter, SearchMixin.search_issues, and SearchMixin.search, which identify the affected entry points, controls, and code paths. This issue is fixed in version 0.22.0." } ], "source": { "advisory": "GHSA-rqwg-9346-fjjv", "discovery": "UNKNOWN" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-09-22T18:58:40.449887Z", "id": "CVE-2026-77252", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-23T14:38:13.093Z" } } ] } }