CVE-2026-59396

A denial-of-service vulnerability exists in UAA's privatekeyjwt client-authentication mechanism. When UAA retrieves a remote JWKS URI, it caches the response. Invalid authentication attempts can trigger full deserialization of this cached data. An attacker with prerequisites write access to clien...

CVE-2026-59396

A Denial of Service (DoS) vulnerability exists in the UAA private_key_jwt client-authentication mechanism, specifically in how it handles and caches remote JWKS URIs . When UAA fetches a remote jwks_uri, it caches the response body. An attacker with prerequisites—such as write access to clients o...

EUVD-2026-113751

A denial-of-service vulnerability exists in UAA's privatekeyjwt client-authentication mechanism. When UAA retrieves a remote JWKS URI, it caches the response. Invalid authentication attempts can trigger full deserialization of this cached data. An attacker with prerequisites write access to clien...

CVE-2026-59396 DoS Vulnerability in UAA Related to JWKS URI Handling

A denial-of-service vulnerability exists in UAA's privatekeyjwt client-authentication mechanism. When UAA retrieves a remote JWKS URI, it caches the response. Invalid authentication attempts can trigger full deserialization of this cached data. An attacker with prerequisites write access to clien...

CVE-2026-59396 - DoS Vulnerability in UAA Related to JWKS URI Handling | Cloud Foundry

– 6.9 Medium CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N – 4.9 Medium CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Versions Affected UAA – UAA versions from v76.23.0 thru v79.8.0 Description A Denial of Service DoS vulnerability exists within UAA’s privatekeyjwt...

CVE-2026-59396 - DoS Vulnerability in UAA Related to JWKS URI Handling | Cloud Foundry

– 6.9 Medium CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N – 4.9 Medium CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Versions Affected UAA – UAA versions from v76.23.0 thru v79.8.0 Description A Denial of Service DoS vulnerability exists within UAA’s privatekeyjwt...

CVE-2026-47426

Open Access Management OpenAM is an access management solution. Prior to 16.1.1, the privatekeyjwt client authentication path uses ClientJwksResolverCache without reliably binding a cached jwksuri resolver and verified assertion to the expected clientID in ClientCredentialsReader. An attacker...

CVE-2026-47426

OpenAM (Open Access Management) Community Edition through 16.0.6 is affected by an Improper Authentication flaw (CWE-287) in the OAuth2 private_key_jwt client authentication path. The ClientJwksResolverCache does not reliably bind a cached jwks_uri resolver and verified assertion to the expected ...

CVE-2026-47426

Open Access Management OpenAM is an access management solution. Prior to 16.1.1, the privatekeyjwt client authentication path uses ClientJwksResolverCache without reliably binding a cached jwksuri resolver and verified assertion to the expected clientID in ClientCredentialsReader. An attacker...

CVE-2026-47426: Improper Authentication

Open Access Management OpenAM is an access management solution. Prior to 16.1.1, the privatekeyjwt client authentication path uses ClientJwksResolverCache without reliably binding a cached jwksuri resolver and verified assertion to the expected clientID in ClientCredentialsReader. An attacker...

CVE-2026-1180

A flaw was identified in Keycloak’s OpenID Connect Dynamic Client Registration feature when clients authenticate using privatekeyjwt. The issue allows a client to specify an arbitrary jwksuri, which Keycloak then retrieves without validating the destination. This enables attackers to coerce the...

CVE-2026-1180: Server-Side Request Forgery (SSRF)

A flaw was identified in Keycloak’s OpenID Connect Dynamic Client Registration feature when clients authenticate using privatekeyjwt. The issue allows a client to specify an arbitrary jwksuri, which Keycloak then retrieves without validating the destination. This enables attackers to coerce the...

CVE-2025-27370: Authentication Bypass by Primary Weakness

OpenID Connect Core through 1.0 errata set 2 allows audience injection in certain situations. When the privatekeyjwt authentication mechanism is used, a malicious Authorization Server could trick a Client into writing attacker-controlled values into the audience, including token endpoints or issu...

CVE-2020-15222

In ORY Fosite the security first OAuth2 & OpenID Connect framework for Go before version 0.31.0, when using "privatekeyjwt" authentication the uniqueness of the jti value is not checked. When using client authentication method "privatekeyjwt", OpenId specification says the following about asserti...

CVE-2020-15222

In ORY Fosite the security first OAuth2 & OpenID Connect framework for Go before version 0.31.0, when using "privatekeyjwt" authentication the uniqueness of the jti value is not checked. When using client authentication method "privatekeyjwt", OpenId specification says the following about asserti...

CVE-2020-15222

In ORY Fosite the security first OAuth2 & OpenID Connect framework for Go before version 0.31.0, when using "privatekeyjwt" authentication the uniqueness of the jti value is not checked. When using client authentication method "privatekeyjwt", OpenId specification says the following about asserti...

Design/Logic Flaw

In ORY Fosite the security first OAuth2 & OpenID Connect framework for Go before version 0.31.0, when using "privatekeyjwt" authentication the uniqueness of the jti value is not checked. When using client authentication method "privatekeyjwt", OpenId specification says the following about asserti...

CVE-2020-15222 Replay of private_key_jwt possible in ORY Fosite

In ORY Fosite the security first OAuth2 & OpenID Connect framework for Go before version 0.31.0, when using "privatekeyjwt" authentication the uniqueness of the jti value is not checked. When using client authentication method "privatekeyjwt", OpenId specification says the following about asserti...

CVE-2020-15222

In ORY Fosite the security first OAuth2 & OpenID Connect framework for Go before version 0.31.0, when using "privatekeyjwt" authentication the uniqueness of the jti value is not checked. When using client authentication method "privatekeyjwt", OpenId specification says the following about asserti...

CVE-2020-15222: Improper Authentication

In ORY Fosite the security first OAuth2 & OpenID Connect framework for Go before version 0.31.0, when using "privatekeyjwt" authentication the uniqueness of the jti value is not checked. When using client authentication method "privatekeyjwt", OpenId specification says the following about asserti...