Hayat Mobile: Client-side authentication bypass in Hayat Hospital app
Summary
Hayat Mobile from version 3.3.0 before 3.4.0 relies on client-side authentication (CWE-603), which allows an authentication bypass. According to the CNA record, an unauthenticated remote attacker can reach the flaw over the network with low complexity and no user interaction. Some aggregators describe the impact as exposure of OTP codes, but this is unconfirmed; the CVSS score indicates high confidentiality impact and low integrity impact.
Affected
- Hayat Mobile from 3.3.0 before 3.4.0
- Default configuration: unaffected (per CNA record)
Fixed in
- Version 3.4.0 (implied first fixed version; not confirmed by the vendor)
Workaround
Unknown.
Exploitation
- No evidence of exploitation in the wild found; not listed in CISA KEV.
- No public proof of concept found.
- CISA SSVC: exploitation none, automatable yes, technical impact partial.
- EPSS reported as 0.0026.
Our recommendation
- Check whether Hayat Mobile is installed or managed in your environment.
- If it is in use, update to version 3.4.0 or later and confirm the version with the vendor.
- Ask the vendor or review TR-CERT notice tr-26-1289 for fix details.
- Monitor for updates to the CVE record, as NVD analysis is pending.
- If the app is not used, no action is needed.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- TR-CERT notice tr-26-1289 siberguvenlik.gov.tr
- Rapid7 Vulners record for CVE-2026-90983 vulners.com
- PT-2026-108971 (Vulners) vulners.com
- Strix CVE page www.strix.ai
- threatint CVE record cve.threatint.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 1 Nov 2026, 16:44.
Original description (NVD)
Use of Client-Side authentication vulnerability in Hayat Health Facilities Inc. (Hayat Hospital) Hayat Mobile allows Authentication Bypass. This issue affects Hayat Mobile: from 3.3.0 before 3.4.0.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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