---
cve: "CVE-2026-34751"
severity: "CRITICAL"
cvss: 9.1
epss: "0.4%"
vendor: "payloadcms"
kev: false
exploited: false
published: "2026-04-01 18:16:31"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-27T10:22:57+01:00"
---

# CVE-2026-34751

> 9.1 CRITICAL · 🧪 PoC

## Beschreibung

Payload is a free and open source headless content management system. Prior to version 3.79.1 in @payloadcms/graphql and payload, a vulnerability in the password recovery flow could allow an unauthenticated attacker to perform actions on behalf of a user who initiates a password reset. This issue has been patched in version 3.79.1 for @payloadcms/graphql and payload.

## CNA-Record (Kanon, cvelistV5)

- CNA: **GitHub_M**
- State: PUBLISHED
- Stand: 2026-04-04 03:06:17
- CNA-CVSS: **9.1** (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Keine | good |

## Schwachstellen-Klasse

- **CWE-472** — External Control of Assumed-Immutable Web Parameter
  The web application does not sufficiently verify inputs that are assumed to be immutable but are actually externally controllable, such as hidden form fields.
- **CWE-640** — Weak Password Recovery Mechanism for Forgotten Password
  The product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak.

## Angriffsmuster (CAPEC)

- [CAPEC-31 — Accessing/Intercepting/Modifying HTTP Cookies](https://capec.mitre.org/data/definitions/31.html) _(Severity: High)_
- [CAPEC-39 — Manipulating Opaque Client-based Data Tokens](https://capec.mitre.org/data/definitions/39.html) _(Severity: Medium)_
- [CAPEC-146 — XML Schema Poisoning](https://capec.mitre.org/data/definitions/146.html) _(Severity: High)_
- [CAPEC-226 — Session Credential Falsification through Manipulation](https://capec.mitre.org/data/definitions/226.html) _(Severity: Medium)_

## ATT&CK-Techniken

- [T1539 — Steal Web Session Cookie](https://attack.mitre.org/techniques/T1539/)

## Patch verfügbar (OSV)

- 25a0e1659d837b1fa58429a71a8ce2255362aaee (Commit)

## Referenzen

- <https://github.com/payloadcms/payload/security/advisories/GHSA-hp5w-3hxx-vmwf>
- <https://github.com/payloadcms/payload/releases/tag/v3.79.1>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-34751/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_