CVE-2026-109189 Server-side request forgery in MeterSphere
Attackers can exploit a server-side request forgery vulnerability in MeterSphere's Swagger parser to access internal resources or bypass security controls.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-109189?
CVE-2026-109189 is a medium-severity server-side request forgery vulnerability in fit2cloud MeterSphere, published on 13 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was detected in fit2cloud MeterSphere up to 3.6.9-lts. The affected element is the function Swagger3ParserApiDefinition.testUrlTimeout of the file backend/parser/api/dataimport/Swagger3ParserApiDefinition.java of the component Swagger3 Parser. Performing a manipulation of the argument swaggerUrl results in server-side request forgery. Remote exploitation of the attack is possible. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-918
Which versions are affected by CVE-2026-109189?
How do I fix CVE-2026-109189?
No fix has been published for CVE-2026-109189 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-109189 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-109189 exists.
Sources
Also known as GHSA-hhch-5r3f-p76p.