Following Admin APIs in Ory Hydra are vulnerable to SQL injection due to flaws in its pagination implementation:
Pagination tokens are encrypted using the secret configured in secrets.pagination. If this value is not set, Hydra falls back to using secrets.system. An attacker who knows this secret can craft their own tokens, including malicious tokens that lead to SQL injection.
This issue can be exploited when the following conditions are met:
secrets.pagination is set and known to the attacker, or secrets.pagination is not set and secrets.system is known to the attackerAn attacker can execute arbitrary SQL queries through forged pagination tokens.
As a first line of defense, immediately configure a custom value for secrets.pagination by generating a cryptographically secure random secret, for example:
openssl rand -base64 32
Next, upgrade Hydra to the fixed version as soon as possible.
{
"cwe_ids": [
"CWE-89"
],
"github_reviewed": true,
"github_reviewed_at": "2026-03-20T20:55:04Z",
"nvd_published_at": "2026-03-26T18:16:31Z",
"severity": "HIGH"
}