---
cve: "CVE-2026-54714"
severity: "MEDIUM"
cvss: 6.1
epss: "25%"
vendor: "logto-io"
kev: false
exploited: false
published: "2026-07-10 20:16:46"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-04T03:06:39+02:00"
---

# CVE-2026-54714

> 6.1 MEDIUM · 🧪 PoC

## Beschreibung

Logto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 1.41.0, @logto/core reflected the SAML RelayState, SAMLResponse, and actionUrl into a Logto-origin auto-submit HTML form in packages/core/src/saml-application/SamlApplication/utils.ts without HTML-attribute escaping. A SAML application flow with a crafted RelayState from GET or POST /api/saml/:id/authn could inject script that runs on the Logto tenant origin after the user completes login. This issue is fixed in version 1.41.0.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 209fa0a5cbe8522f9cf31873239dc6424099bb5e (Commit)
- 91e55698a42f99438cd41ec2b16a1fc51dbdab8a (Commit)

## Referenzen

- <https://github.com/logto-io/logto/security/advisories/GHSA-cpm5-w86q-w85f>
- <https://github.com/logto-io/logto/pull/9008>
- <https://github.com/logto-io/logto/commit/209fa0a5cbe8522f9cf31873239dc6424099bb5e>
- <https://github.com/logto-io/logto/releases/tag/v1.41.0>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-54714) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_