CVE-2026-77256Kavram kanıtı (PoC) yayınlanmış · CISA
MCP Atlassian: OAuth refresh-token backup file is world-readable under default Unix umask
CVSS Skor
8.3
EPSS İhtimal
%0.3
Risk Skoru
0.0
Yayın
23 gün önce
Vulnerability Timeline (Değişiklik ve Güncelleme Geçmişi)
CVE-2026-77256 zafiyeti üzerinde NVD, CISA ve MITRE tarafından yapılan tarihsel değişiklikler:
| Tarih | Aktör / Kaynak | İşlem / Açıklama | Tür | Önceki Değer | Yeni Değer |
|---|---|---|---|---|---|
| 28.09.2026 | 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-2026-77256 |
İlgili Benzer Açıklar
9.1
CVE-2026-77254
MCP Atlassian: Unauthenticated HTTP MCP requests can use globally configured Jira and Confluence credentials
S
Yama doğrulandıEPSS %1
8.3
CVE-2026-77271
MCP Atlassian: Incomplete path traversal fix allows intra-CWD module overwrite and RCE (bypass of CVE-2026-27825)
S
Yama doğrulandıEPSS %1
8.6
CVE-2026-77262
MCP Atlassian: Path Traversal / Arbitrary File Read in confluence_upload_attachment MCP tool (incomplete fix of CVE-2026-27825)
S
Yama doğrulandıEPSS %0
7.7
CVE-2026-73496
MCP Atlassian: Arbitrary server-side file read via attachment upload
S
Yama durumu bilinmiyorEPSS %0
7.7
CVE-2026-73498
MCP Atlassian is a Model Context Protocol (MCP): Arbitrary file read via missing path validation in confluence_upload_attachment
S
Yama doğrulandıEPSS %0
8.6
CVE-2026-77248
MCP Atlassian: Unauthenticated arbitrary local file read via upload_attachment file_path, chained with missing auth on streamable-http transport
S
Yama doğrulandıEPSS %0
Bu açığı API ile alın
Etkilenen ürünler, sürüm aralıkları, istismar durumu ve yama bilgisi tek istekte; ücretsiz anahtarla.
curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-77256"