high · CVSS v3 6.8 · CVSS v4 7.6
CVE-2026-105119
OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests whose response_type is …
Description
OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests whose response_type is exactly code, so codes issued through OpenID Connect hybrid flows (code token, code id_token, code token id_token) carry no bound challenge. An attacker who intercepts such a code can redeem it for a public client's tokens with any non-empty code_verifier.
Scores
- Severity
- high
- CVSS v2
- 7.1
- CVSS v3
- 6.8
- CVSS v4
- 7.6
- EPSS
- —