---
cve: "CVE-2026-100610"
severity: "HIGH"
cvss: 7.7
epss: "0.3%"
vendor: "FlowiseAI"
kev: false
exploited: false
published: "2026-09-26 13:22:52"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-29T08:04:38+02:00"
---

# CVE-2026-100610

> 7.7 HIGH · 🧪 PoC

## Beschreibung

Flowise through 3.1.4 exposes GET /api/v1/upsert-history/:id and PATCH /api/v1/upsert-history without route-level permission checks, and the backing service performs no workspace or ownership validation. getAllUpsertHistory() returns UpsertHistory rows selected solely by an attacker-supplied chatflowid, and patchDeleteUpsertHistory() deletes rows by an attacker-supplied array of record UUIDs. As a result, any authenticated low-privilege user or valid API key can read or delete document-store upsert history belonging to other users and other workspaces whenever the target chatflowId (which is exposed publicly in /chatbot/ share links) or row ids are known. The retrievable flowData and result fields contain embedding, record-manager and vector-store node configuration, including per-node paramValues. No patched version is available.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-09-26 13:22:52
- CNA-CVSS: **7.7** (`CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- a65f81bb43ef66d3ce734bf0dff4223ae8041c95 (Commit)

## BSI-Hinweise (deutsch)

- [Flowise: Mehrere Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2026-3313) — _BSI-Einstufung: hoch_
  Ein Angreifer kann mehrere Schwachstellen in Flowise ausnutzen, um seine Privilegien zu erhöhen, Benutzerkonten zu übernehmen, Sicherheitsmaßnahmen zu umgehen und Daten zu manipulieren oder offenzulegen.

## Referenzen

- <https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-jvx3-mjpw-r4gh>
- <https://www.vulncheck.com/advisories/flowise-through-3.1.4-missing-authorization-via-upsert-history>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-100610) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_