{"vulnerability": "CVE-2026-77254", "sightings": [{"uuid": "8d49500e-8395-46af-8c6e-306483ed3c22", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-77254", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mw4yq67mxx2w", "content": "CVE-2026-77254 - mcp-atlassian\nThe MCP Atlassian server for Confluence and Jira accepted HTTP requests without verifying the caller\u2019s identity, then used the system\u2019s global credentials. This lets\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#mcpatlassian #sooperset #CVE #infosec", "creation_timestamp": "2026-09-22T19:50:05.151949Z"}, {"uuid": "8923dea4-717f-4340-856a-c008f066ea07", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-77254", "type": "seen", "source": "https://bsky.app/profile/vulnsea.com/post/3mw4zqncn772q", "content": "\ud83c\udf0a ABYSSAL \u00b7 critical with a public exploit\nCVE-2026-77254: MCP Atlassian: Unauthenticated HTTP MCP requests can use globally configured Jira and Confluence credentials\nCVSS 9.1\nhttps://beta.vulnsea.com/cve/CVE-2026-77254\n\n#CVE #infosec #cybersecurity #threatintel", "creation_timestamp": "2026-09-22T20:08:14.563273Z"}, {"uuid": "84a245a4-1891-4b35-a46a-e5720ab72c47", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-77254", "type": "seen", "source": "https://bsky.app/profile/stemshop.bsky.social/post/3mw4zzsmkdm2f", "content": "\ud83d\udea8 CVE-2026-77254 \u2014 CVSS 9.1 CRITICAL\n\nMCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior ...\n\n\ud83d\udd0e https://stemshop.top/cve/CVE-2026-77254\n\n#CVE #CyberSecurity #InfoSec", "creation_timestamp": "2026-09-22T20:13:22.245681Z"}]}