CVE-2026-77251Proof of concept (PoC) published · CISASuited to automated attack · CISA
MCP Atlassian: JIRA_PROJECTS_FILTER / CONFLUENCE_SPACES_FILTER allow forbidden-project content exfiltration (one LIVE-proven on Atlassian Cloud)
CVSS score
8.3
EPSS probability
%0.2
Risk score
0.0
Published
26 d ago
Vulnerability Timeline (Change History)
CVE-2026-77251 historical changes made to the vulnerability by NVD, CISA and MITRE:
| Date | Actor / Source | Action / Description | Type | Previous value | New value |
|---|---|---|---|---|---|
| 01.10.2026 | nvd@nist.gov | Initial Analysis & CVSS Vector Assignment | CVSS V3.1 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N |
| 22.09.2026 | CISA Coordinator | SSVC Risk Re-assessment | SSVC / KEV | exploitation: none | exploitation: none |
| 22.09.2026 | MITRE / NVD | New CVE Record Received & Ingested | CVE Created | — | CVE-2026-77251 |
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Get this vulnerability through the API
Affected products, version ranges, exploitation status and patch information in a single request, with a free key.
curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-77251"