The authorization middleware of the WMS MobileServer fails to require authentication in two distinct cases.
CVE-2026-89309 · published 13 Oct 2026
How serious is it
- Severity: critical, CVSS score 10 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-89309?
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Who is affected
- JTL SW GmbH JTL-WMS: < 2.0.7, < 2.1.2, < 2.2.1, 1.7.*, 1.8.*, 1.9.*, 1.10.*, 1.11.*
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
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.
Check your whole app
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References
Merged from NVD. Last updated 25 Oct 2026. All vulnerabilities · RSS · JSON