CVE-2026-48154 GoRest: InMemorySecret2FA race condition allows process crash via concurrent map access
An attacker can crash the GoRest application by triggering a race condition in the 2FA secret storage map, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-48154?
CVE-2026-48154 is a medium-severity vulnerability in pilinux gorest, published on 4 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
GoRest is a Golang starter kit built with the Gin framework for prototyping and developing RESTful APIs. In versions prior to 1.12.2 nMemorySecret2FA contains a race condition due to an unsynchronized package-level map used to store 2FA secrets. Multiple HTTP handlers in handler/login.go and handler/twoFA.go read from and write to this map concurrently, and because Go's runtime treats unsynchronized concurrent map access as an unrecoverable fatal error, an attacker can repeatedly trigger this condition to crash the process on demand. This results in high, repeatable availability impact with no confidentiality or integrity consequences. This issue has been fixed in version 1.12.2.
Weakness: CWE-362
Which versions are affected by CVE-2026-48154?
3 open source packages ship an affected version, including github.com/pilinux/gorest.
| Package | Affected | Fixed in |
|---|---|---|
github.com/pilinux/gorest Go | All versions | 1.12.2 |
github.com/pilinux/gorest Go | All versions | 1.12.2 |
github.com/pilinux/gorest Go | All versions | 1.12.2 |
How do I fix CVE-2026-48154?
Upgrade github.com/pilinux/gorest to 1.12.2 or later.
Is CVE-2026-48154 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48154 exists.
Sources
Also known as GHSA-cpwg-x64r-rgwg, GO-2026-5330.