GHSA-MFV2-4WVM-9PGP: Path traversal in upload_attachment allows arbitrary file read and exfiltration via MCP tool call · Advisory · sooperset/mcp-atlassian · GitHub

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PublisherGitHub

Article IDGHSA-MFV2-4WVM-9PGP

Verified snapshot28 Sept 2026, 14:38 UTC

Linked CVEs1

Linked CVE reports

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CVE-2026-77266MCP Atlassian: Path traversal in upload_attachment allows arbitrary file read and exfiltration via MCP tool call

Source and provenance

Original title: Path traversal in upload_attachment allows arbitrary file read and exfiltration via MCP tool call · Advisory · sooperset/mcp-atlassian · GitHub. Captured 28 Sept 2026, 14:38 UTC. The stored article is used for enrichment and change detection; BlackTree does not republish the publisher's full text here.

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