Auth bypass in Ооо Нпо Ритм Georitm
CVE-2026-100903
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."
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS 0.006, 47.2th percentile (scored ); unchanged over 30 days. About EPSS.
Affected products
- Ооо Нпо Ритм Georitm — versions 2.45.0, 2.45.1
Weakness classification (CWE)
Public exploits and proof-of-concept code
1 public repository with exploit or proof-of-concept code for this CVE:
- 4ybrick/CVE-2026-100903 (last pushed 2026-09-28): GEOritm CVE
References
- VDB-410853 | ООО НПО Ритм GEOritm REST API obj-groups missing authentication (technical-description, vdb-entry)
- VDB-410853 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- CVE-2026-100903 | CVE Analysis and Report (third-party-advisory)
- Submit #919388 | ООО НПО "Ритм" GEOritm 2.45.1 Missing Authentication (third-party-advisory)
- pastebin.com/3VsEG3Rg (related, exploit)
- ritm.ru/contacts/ (patch)
- github.com/4ybrick/CVE-2026-100903 (exploit)
This CVE has public exploit evidence. See the latest CVEs with public exploits.