CVE-2026-77274: mcp-atlassian mcp atlassian

csirt@kutim:~/threat-intel/cve/CVE-2026-77274

CVSS 8.2 · High EPSS 0,32%

Kerentanan Server-Side Request Forgery (SSRF) pada mcp-atlassian mcp atlassian. Skor CVSS 3.1 8.2 (High) menurut NVD.

Deskripsi (NVD)

MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, validate_url_for_ssrf has a backslash authority confusion because it interprets the authority differently from the Requests connection layer in the header-based Jira and Confluence URL authentication flow. A crafted URL can validate as an external hostname while the HTTP client connects to an internal host, permitting server-side requests to protected network resources. This issue is fixed in version 0.22.0.

Rincian

Terbit di NVD: 22 September 2026
Terakhir diubah: 28 September 2026
Status NVD: Analyzed
CVSS 3.1: 8.2 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-918: Server-Side Request Forgery (SSRF)
EPSS (30 hari): 0,32% peluang dieksploitasi; lebih tinggi dari 23,5% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
mcp-atlassian	mcp atlassian	Semua versi sebelum 0.22.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/sooperset/mcp-atlassian/security/advisories/GHSA-hgcf-4mq8-5266 exploit · advisory vendor
https://github.com/sooperset/mcp-atlassian/commit/b041733473f95119dd539542a43c280737a8e460 patch
https://github.com/sooperset/mcp-atlassian/pull/1448 issue tracking · patch
https://github.com/sooperset/mcp-atlassian/releases/tag/v0.22.0 release notes

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.