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CVE-2026-12763

Langflow is vulnerable to authentication bypass and insufficient session expiration

CVSS 3.1 4.2 MEDIUMCheck source for fixed versionsKEV status unknown
Original advisory

cve-program · CVE-2026-12763

Published

IBM Langflow OSS 1.0.0 through 1.11.5 could allow an authenticated attacker to access another user's MCP server context due to improper cache key isolation in the MCP Tools component.

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Affected versions, risk and source history

Related advisories and sources

Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.

CVE-2026-12763 · CVE overview and exploitation status

cve-program · CVE-2026-12763

Related changes

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ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 13 Nov 13:11 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current

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