CVE-2026-6596Disclosure

LOWCVSS 5.5 · MEDIUM

Signal is active with 3 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 security flaw has been discovered in langflow-ai langflow up to 1.1.0. This issue affects the function create_upload_file of the file src/backend/base/Langflow/api/v1/endpoints.py of the component API Endpoint. The manipulation results in unrestricted upload. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. 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-284CWE-434

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 3 mentions across 1 observed day

What's happening

  • Technical details provided in 3 signals
  • Disclosure: 2 classified signals
  • General: 1 classified signal
  • 3 total mentions across 1 day

Deep dive

Activity timeline3 mentions / 1d
01223Mentions · 2026-04-20: 3Technical Details · 2026-04-20: 304-20
Signal classification2 categories
Disclosure
266.7%
General
133.3%
Referenced assets5 URLs
Full discourse3 posts
  • FOFA@fofabot
    Disclosure

    ⚠️⚠️ CVE-2026-6596: Langflow file-upload handling flaw may expose internet-facing instances to unauthorized risk. 🔗FOFA Link: https://en.fofa.info/result?qbase64=YXBwPSJMT0dTUEFDRS1MYW5nRmxvdyI= 🎯2.9K+ Results are found on http://en.fofa.info. FOFA Query: app="LOGSPACE-LangFlow" 🔖Refer: https://nvd.nist.gov/vuln/detail/CVE-2026-6596 #OSINT #FOFA #CyberSecurity #Vulnerability

    Post summary

    The tweet announces CVE-2026-6596, highlights a file‑upload handling flaw, and points to FOFA search results and the NIST page, but offers no PoC, exploit, or patch details.

    1711642.8K
    14.4K followersView on X
  • CVE@CVEnew
    General

    CVE-2026-6596 A security flaw has been discovered in langflow-ai langflow up to 1.1.0. This issue affects the function create_upload_file of the file src/backend/base/Langflow/api/v1… https://www.cve.org/CVERecord?id=CVE-2026-6596

    Post summary

    The post announces CVE-2026‑6596 in langflow‑ai langflow up to v1.1.0, noting the affected function but offering no PoC, patch, or exploitation details.

    01000134
    57.2K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-6596 Unrestricted File Upload Vulnerability in Langflow-AI Langflow Up to 1.1.0 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-6596

    Post summary

    CVE-2026-6596 is reported as an unrestricted file upload flaw in Langflow versions up to 1.1.0, but no PoC, exploit, patch, or active exploitation information is provided.

    0000064
    4.0K followersView on X

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