CVE Watch25 sept 2026

CVE-2026-77261

MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, _make_ssrf_safe_hook i

CVSS

7.1

Alto

EPSS

0.3%

p24

KEV

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Exploit Today

0-100

Publicado: 22 sept 2026 · Última mod.: 25 sept 2026 · CWE-918

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-09-232026-10-20

Descripción técnica

MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, _make_ssrf_safe_hook is omitted from JiraFetcher and ConfluenceFetcher sessions created through the basic-auth and oauth_pat branches. If an attacker-controlled or compromised configured Atlassian instance returns a redirect to an internal address, those sessions can follow the redirect without revalidating its destination. This issue is fixed in version 0.22.0.

Referencias oficiales

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