CVE-2026-28789
published 2026-03-05CVE-2026-28789: OliveTin gives access to predefined shell commands from a web interface. Prior to version 3000.10.3, an unauthenticated denial-of-service vulnerability exists…
PriorityP345high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.39%
31.2th percentile
OliveTin gives access to predefined shell commands from a web interface. Prior to version 3000.10.3, an unauthenticated denial-of-service vulnerability exists in OliveTin’s OAuth2 login flow. Concurrent requests to /oauth/login can trigger unsynchronized access to a shared registeredStates map, causing a Go runtime panic (fatal error: concurrent map writes) and process termination. This allows remote attackers to crash the service when OAuth2 is enabled. This issue has been patched in version 3000.10.3.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| github.com | olivetin_olivetin | >= 0 < 0.0.0-20260301235225-f044d90d5525c | 0.0.0-20260301235225-f044d90d5525c |
| olivetin | olivetin | < 3000.10.3 | 3000.10.3 |
| olivetin | olivetin | <= 3000.10.2 | — |
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OSV
OliveTin has unauthenticated DoS via concurrent map writes in OAuth2 state handling in github.com/OliveTin/OliveTin
osv·2026-03-10
CVE-2026-28789 OliveTin has unauthenticated DoS via concurrent map writes in OAuth2 state handling in github.com/OliveTin/OliveTin
OliveTin has unauthenticated DoS via concurrent map writes in OAuth2 state handling in github.com/OliveTin/OliveTin
OliveTin has unauthenticated DoS via concurrent map writes in OAuth2 state handling in github.com/OliveTin/OliveTin.
NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.
(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)
The additional affected modules and versions are: github.com/OliveTin/OliveTin before v0.0.0-20260301235225-f044d90d5525c.
OSV
OliveTin has unauthenticated DoS via concurrent map writes in OAuth2 state handling
osv·2026-03-02
CVE-2026-28789 [HIGH] OliveTin has unauthenticated DoS via concurrent map writes in OAuth2 state handling
OliveTin has unauthenticated DoS via concurrent map writes in OAuth2 state handling
### Summary
An unauthenticated denial-of-service vulnerability exists in OliveTin’s OAuth2 login flow. Concurrent requests to /oauth/login can trigger unsynchronized access to a shared registeredStates map, causing a Go runtime panic (fatal
error: concurrent map writes) and process termination. This allows remote attackers to crash the service when OAuth2 is enabled.
### Details
The OAuth2 handler stores per-login state in a shared map without synchronization:
- service/internal/auth/otoauth2/restapi_auth_oauth2.go:24
registeredStates map[string]*oauth2State
- Unlocked write in login handler: .../restapi_auth_oauth2.go:141
- Unlocked read in callback check: .../restapi_auth_oauth2.go:174
- Unlocked writ
GHSA
OliveTin has unauthenticated DoS via concurrent map writes in OAuth2 state handling
ghsa·2026-03-02
CVE-2026-28789 [HIGH] CWE-362 OliveTin has unauthenticated DoS via concurrent map writes in OAuth2 state handling
OliveTin has unauthenticated DoS via concurrent map writes in OAuth2 state handling
### Summary
An unauthenticated denial-of-service vulnerability exists in OliveTin’s OAuth2 login flow. Concurrent requests to /oauth/login can trigger unsynchronized access to a shared registeredStates map, causing a Go runtime panic (fatal
error: concurrent map writes) and process termination. This allows remote attackers to crash the service when OAuth2 is enabled.
### Details
The OAuth2 handler stores per-login state in a shared map without synchronization:
- service/internal/auth/otoauth2/restapi_auth_oauth2.go:24
registeredStates map[string]*oauth2State
- Unlocked write in login handler: .../restapi_auth_oauth2.go:141
- Unlocked read in callback check: .../restapi_auth_oauth2.go:174
- Unlocked writ
No detection rules found.
No public exploits indexed.
2026-03-05
Published