SQL Injection in Ory Kratos
CVE-2026-33503
Ory Kratos is an identity, user management and authentication system for cloud services. Prior to version 26.2.0, the ListCourierMessages Admin API in Ory Kratos is vulnerable to SQL injection due to flaws in its pagination implementation. Pagination tokens are encrypted using the secret configured in `secrets.pagination`. An attacker who knows this secret can craft their own tokens, including malicious tokens that lead to SQL injection. If this configuration value is not set, Kratos falls back to a default pagination encryption secret. Because this default value is publicly known, attackers can generate valid and malicious pagination tokens manually for installations where this secret is not set. As a first line of defense, immediately configure a custom value for `secrets.pagination` by generating a cryptographically secure random secret. Next, upgrade Kratos** to a fixed version, 26.2.0 or later, as soon as possible.
Vulnerability class: SQL Injection
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (24.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.001
Affected products
- Ory Kratos — versions < 26.2.0
Weakness classification (CWE)
References
- github.com/ory/kratos/security/advisories/GHSA-hgx2-28f8-6g2r (Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-33503?
- CVE-2026-33503 is a high-severity vulnerability in Ory Kratos, classified under SQL Injection. CVSS score: 7.2/10. Published 2026-03-26.
- How severe is CVE-2026-33503?
- High severity. CVSS v3 base score is 7.2 out of 10.