CVE-2026-30822 | Flowise: Mass Assignment in `/api/v1/leads` Endpoint

Exp

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.0.13, unauthenticated users can inject arbitrary values into internal database fields when creating leads. This issue has been patched in version 3.0.13.

Published: 2026-03-07 Last update: 2026-03-11 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-30822 is rated High Exploit Risk (84.3/100): CVSS High severity, with high exploitation likelihood (EPSS 12.90%, 96th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +12.45% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2026-30822

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2026-30822

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.46% 12.90% +12.45%
2 2026-05-22 0.36% 0.46% +0.09%
3 2026-05-13 — 0.36% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-30822

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.7 3.0 HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 2.2 5.5 [email protected]

Weakness enumeration for CVE-2026-30822

GitHub Security Advisory for CVE-2026-30822

GHSA-mq4r-h2gh-qv7x · Severity: high · Ecosystem: npm — Flowise Allows Mass Assignment in `/api/v1/leads` Endpoint

Affected software / configurations for CVE-2026-30822

Vendor Product Version Raw CPE
flowiseai flowise < 3.0.13 cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*

References for CVE-2026-30822

cvelogic Threat Intelligence