CVE-2026-100903 ООО НПО Ритм GEOritm REST API obj-groups missing authentication
Remote attackers can access or modify object groups without authentication due to missing checks in the REST API.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-100903?
CVE-2026-100903 is a medium-severity missing authorization vulnerability in ООО НПО Ритм GEOritm, published on 28 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was identified in ООО НПО Ритм GEOritm up to 2.45.1. This affects an unknown part of the file /restapi/objects/obj-groups of the component REST API. Such manipulation of the argument objectId leads to missing authentication. The attack can be launched remotely. The exploit is publicly available and might be used. Upgrading to version 2.46 is able to mitigate this issue. It is advisable to upgrade the affected component. The vendor confirms: "In August 2026, NPO Ritm received an official vulnerability notification from the Russian Federal Service for Technical and Export Control (FSTEC Russia). The vulnerability was registered under identifier BDU:2026-11235. Following our internal investigation, we confirmed the vulnerability and implemented the necessary security fixes. The vulnerability has been fixed on our hosted GEO.RITM server at geo.ritm.ru. The fix has also been included in GEO.RITM version 2.46, which is already being distributed to our customers."
Which versions are affected by CVE-2026-100903?
How do I fix CVE-2026-100903?
No fix has been published for CVE-2026-100903 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-100903 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100903 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-g456-7977-c699.