CVE-2025-26620

Duende.AccessTokenManagement is a set of .NET libraries that manage OAuth and OpenId Connect access tokens. Duende.AccessTokenManagement contains a race condition when requesting access tokens using the client credentials flow. Concurrent requests to obtain an access token using differing protoco...

CVE-2025-26620

creationtimestamp| type| source ---|---|--- 2025-02-18 18:16:23+00:00| seen| https://bsky.app/profile/cve-notifications.bsky.social/post/3lihulptmz52n 2025-02-18 20:59:45+00:00| seen| https://t.me/cvedetector/18347...

CVE-2025-26620 Duende.AccessTokenManagement race condition when concurrently retrieving customized Client Credentials Access Tokens

Duende.AccessTokenManagement is a set of .NET libraries that manage OAuth and OpenId Connect access tokens. Duende.AccessTokenManagement contains a race condition when requesting access tokens using the client credentials flow. Concurrent requests to obtain an access token using differing protoco...

CVE-2025-26620 Duende.AccessTokenManagement race condition when concurrently retrieving customized Client Credentials Access Tokens

Duende.AccessTokenManagement is a set of .NET libraries that manage OAuth and OpenId Connect access tokens. Duende.AccessTokenManagement contains a race condition when requesting access tokens using the client credentials flow. Concurrent requests to obtain an access token using differing protoco...

CVE-2025-26620

CVE-2025-26620 describes a race condition in Duende.AccessTokenManagement when multiple concurrent requests for client credentials tokens use varying TokenRequestParameters. The issue can cause concurrent requests to return tokens with incorrect protocol parameters (scope, resource indicator, etc...