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Vulnerability

CVE-2026-77244: MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, the HTTP transport accepts requests without a verified user identity and downstream fetcher constructi

Official source
EudorIA operational summary

What it means

Priority 85/100

NIST National Vulnerability Database ha pubblicato CVE-2026-77244. La rilevanza va confermata rispetto alle tecnologie effettivamente in uso.

Why it matters

Il segnale diventa operativo solo se prodotto, versione o servizio sono presenti nel perimetro.

Recommended actions

  1. Confermare l'applicabilita consultando la fonte ufficiale e l'inventario asset.
  2. Pianificare mitigazione o aggiornamento secondo criticita e rischio di interruzione.
AudienceITSOCCISO
Information centre

Translation in progress

NIST National Vulnerability Database

The official content is available in the original language. The Italian version will be published once automated checks are complete.

Text acquired from the source

MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, the HTTP transport accepts requests without a verified user identity and downstream fetcher construction falls back to the operator's globally configured Jira or Confluence credentials. A network client that can reach the MCP endpoint can invoke Atlassian tools as the operator, including read and write operations available to that account. The advisory traces the vulnerable input and processing flow through UserTokenMiddleware, AtlassianOpaqueTokenVerifier, _get_fetcher, and streamable-http, which identify the affected entry points, controls, and code paths. This issue is fixed in version 0.22.0.

Source
NIST National Vulnerability Database
Publishing entity
NIST National Vulnerability Database
Entity type
National authority
Area
North America · US
Original language
en · translation in preparation
Publication
22/09/2026 20:17
CVE
CVE-2026-77244
Classification
Critical
Stated country
US
Technical scope

Affected products and versions

Not published
No structured range published.

The official sources queried do not yet expose a list of affected versions. No automatic inference is made.

Sources for the versionsNIST National Vulnerability Database
Open the original source