CVE Feed

    Dashboard / CVE / CVE-2026-69257

    CVE-2026-69257

    Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, Flowise's HTTP security module httpSecurity.ts did not normalize IPv4-mapped IPv6 addresses such as ::ffff:127.0.0.1 and ::ffff:169.254.169.254 before checking them against the deny list. Because ipaddr.js reports these addresses as ipv6 while IPv4 CIDR deny-list entries are ipv4, isDeniedIP() skipped the IPv4 CIDR checks. An attacker who controls DNS resolution for a hostname used by the HTTP Node, API Chain, Document Loader, MCP tool, or other paths using secureAxiosRequest(), secureFetch(), or checkDenyList() could return a AAAA record for an IPv4-mapped target and cause requests to reach localhost, internal services, or cloud metadata endpoints. This issue is fixed in version 3.1.3.

    Published:Aug 4, 2026
    Last Modified:Aug 4, 2026
    EPS:Aug 4, 2026
    EPSS Score:
    CVSS Score:7.6

    Affected Products

    Vendor
    Flowiseai
    Product
    Flowise

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-664 Server Side Request Forgery

    Related CVEs

    CVE-2026-52098 (CVSS 9.8) — An issue in Flowise 3.1.2 allows a remote attacker to execute arbitrary code via the /api/v1/prediction/<flowI…
    CVE-2026-73604 (CVSS 7.1) — Flowise before 3.1.3 contains an incomplete credential redaction vulnerability in the GET /api/v1/credentials/…
    CVE-2026-73603 (CVSS 6.3) — Flowise before 3.1.4 fails to validate chatflow visibility in the unauthenticated text-to-speech endpoint, all…
    CVE-2026-73602 (CVSS 9) — Flowise before 3.1.3 contains a sandbox escape vulnerability in the vm2 JavaScript sandbox that allows authent…
    CVE-2026-73601 (CVSS 9) — Flowise versions before 3.1.3 contain a remote code execution vulnerability in the Custom MCP node when CUSTOM…
    CVE-2026-73488 (CVSS 6) — Flowise versions before 3.1.3 contain an insecure direct object reference vulnerability in the GET /api/v1/org…
    CVE-2026-73487 (CVSS 9) — Flowise before 3.1.3 contains a regex-based Python code validator bypass in CSV and Airtable Agent nodes that …
    CVE-2026-73486 (CVSS 9) — Flowise before 3.1.3 contains a code injection vulnerability in the CSV Agent node's customReadCSV parameter t…
    CVE-2026-73485 (CVSS 9) — Flowise before 3.1.3 contains a code injection vulnerability in the Airtable Agent node that allows unauthenti…
    CVE-2026-73484 (CVSS 8.6) — Flowise before 3.1.3 contains a sandbox escape vulnerability in pythonCodeValidator.ts that fails to block nat…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High