CVE-2026-105119
7.6
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| OpenIdentityPlatform | OpenAM | 0 < 16.1.3 | affected |
| OpenIdentityPlatform | OpenAM | 16.1.3 | unaffected |
Weaknesses
- CWE-285: Improper Authorization
References
- https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-5p2f-7vcr-6vfh
- https://www.vulncheck.com/advisories/openam-before-16.1.3-pkce-enforcement-bypass-via-oauth-2.0-hybrid-flows
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