GHSA-H2R5-X5M7-3935 Python Social Auth: OpenID Connect nonce is not bound to the browser session, so a stolen authorization code logs the attacker in as the victim

Summary The generic OpenID Connect backend OpenIdConnectAuth and every backend built on it stores the nonce in the shared Association table, not in the user's session. When the ID token comes back, validateclaims only checks that the nonce exists in that table and is not expired. It does not chec...