CVE-2026-6599Disclosure

LOWCVSS 2.1 · LOW

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A vulnerability was detected in langflow-ai langflow up to 1.8.3. The impacted element is the function get_client_ip/install_mcp_config of the file src/backend/base/langflow/api/v1/mcp_projects.py of the component Model Context Protocol Configuration API. Performing a manipulation of the argument X-Forwarded-For results in injection. The attack may be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-74CWE-707

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-04-20: 2Technical Details · 2026-04-20: 204-20
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-6599 A vulnerability was detected in langflow-ai langflow up to 1.8.3. The impacted element is the function get_client_ip/install_mcp_config of the file src/backend/base/lan… https://www.cve.org/CVERecord?id=CVE-2026-6599

    Post summary

    A vulnerability in langflow‑ai langflow up to version 1.8.3 affecting the get_client_ip/install_mcp_config function has been identified.

    01000136
    57.2K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-6599 Remote Code Injection in Langflow AI up to 1.8.3 via X-Forwarded-For Header https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-6599

    Post summary

    A remote code injection vulnerability (CVE‑2026‑6599) in Langflow AI up to version 1.8.3 has been disclosed, identified by misuse of the X‑Forwarded‑For header, but no PoC, exploit, or patch details are provided.

    0000056
    4.0K followersView on X

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