Vulnerability · Published Oct 13, 2026 · Assigned by ENISA

CVE-2026-89309Missing Authentication Vulnerability in JTL-WMS

Critical 10.0

In plain English

A critical-severity missing authentication in JTL-WMS from JTL SW GmbH. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).

Severity (CVSS 3.1)10.0Critical

Exploit odds (30 days)0.4%top 66.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

The authorization middleware of the WMS MobileServer fails to require authentication in two distinct cases. First, it only requires an Authorization header for GET and HEAD requests; requests using any other HTTP method are processed without an authentication check. Second, for any HTTP method including GET and HEAD, a request carrying a malformed or non-bearer Authorization header is passed through without a valid token being required. The middleware does validate a token whenever a well-formed one is present, but in these two cases it does not require one. A remote attacker with network access to the service can therefore invoke API functionality without valid credentials.

Affected products (as reported)

Vendor	Product	Versions
JTL SW GmbH	JTL-WMS	0 – before 2.0.70 – before 2.1.20 – before 2.2.11.7., 1.8., 1.9., 1.10., 1.11.*

Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References

https://www.jtl-software.com/de/cve-2026-89309-cve-2026-89310 vendor-advisory