VulnSocial

CVE-2026-7664Disclosure(langflow / langflow)

LOWCVSS 9.8 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch langflow langflow systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

IBM Langflow OSS 1.0.0 through 1.8.4 could allow unauthenticated attackers to access protected MCP project resources and execute MCP operations due to improper authorization enforcement in the Streamable MCP transport endpoint.

langflow CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-287

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • langflow

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-06-22); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
langflow
Products
langflow

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-06-22: 1Mentions · 2026-06-27: 1Patch / Workaround · 2026-06-27: 1Technical Details · 2026-06-22: 1Technical Details · 2026-06-27: 106-2206-27
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-06-221
Disclosure1
2026-06-271
Patch1
Full discourse2 posts
  • SecAlerts@SecAlertsCo
    Patch

    🔓 IBM Langflow OSS 1.0–1.8.4: CVE-2026-7664 is a CVSS 9.8 critical. No auth needed to hit the webhook endpoint, execute MCP ops, and access protected project resources. Upgrade now. #AI #AppSec https://secalerts.co/vulnerability/CVE-2026-7664?utm_campaign=x https://t.co/ms9Cfjm1R4

    Post summary

    The tweet announces a critical, unauthenticated vulnerability in IBM Langflow OSS and urges users to apply the available upgrade.

    0000088
    845 followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-7664 Unauthenticated Access and MCP Operation Execution in IBM Langflow OSS 1.0.0-1.8.4 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-7664

    Post summary

    CVE-2026-7664 discloses unauthenticated access leading to MCP operation execution in IBM Langflow OSS 1.0.0-1.8.4, but no PoC, exploit, patch, or evidence of active exploitation is provided.

    00000130
    4.1K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Applangflowlangflow---

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