CVE-2026-12258 Inadequate access control in the Hiperdino REST API
An attacker with a static bearer token can enumerate customer contact details via the public check endpoint, exposing personal information.
- 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-2026-12258?
CVE-2026-12258 is a critical vulnerability in Hiperdino REST API, published on 14 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Inadequate access control in Hiperdino’s REST v1.0 API. The public endpoint ‘customer/check’ could allow an authenticated attacker to enter a telephone number or an email address. When the value entered belongs to a registered customer, the service returns the associated information (email address and telephone number). No authentication is required beyond a static bearer token, and there is no rate limiting or generic error handling. Successful exploitation of this vulnerability could allow a remote attacker to enumerate a user’s contact details, although this would require obtaining a valid static bearer token, constituting an information disclosure vulnerability.
Weakness: CWE-284
Which versions are affected by CVE-2026-12258?
How do I fix CVE-2026-12258?
No fix has been published for CVE-2026-12258 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-12258 being exploited?
There is no known exploitation of CVE-2026-12258 in the wild and no public exploit code.
Sources
Also known as GHSA-jhq4-x77m-qmhx.