CVE-2026-90452 Improper certificate validation in Malcolm

Requests from the reverse proxy to the identity-provider service for token discovery, introspection, and credential exchange do not verify the identity provider's server certificate. An attacker positioned on the network path between the proxy and the identity provider could impersonate the...

CVE-2026-90452 Improper certificate validation in Malcolm

Requests from the reverse proxy to the identity-provider service for token discovery, introspection, and credential exchange do not verify the identity provider's server certificate. An attacker positioned on the network path between the proxy and the identity provider could impersonate the...

EUVD-2026-42968

Prowler: SAML Domain Claiming Enables Cross-Tenant Account Takeover...

GHSA-H8M9-JGF8-VWVP Prowler: SAML Domain Claiming Enables Cross-Tenant Account Takeover

SAML Tenant Binding Enables Cross-Tenant Account Takeover Summary Prowler's SAML authentication flow trusted the email domain asserted in a SAMLResponse when deciding which tenant should receive the final token. A malicious tenant with its own SAML configuration and a self-controlled IdP could...

EUVD-2026-42963

ZITADEL: Missing Token Expiration exp Validation in JWT IdP Provider...

GHSA-V77H-2W3M-94HX ZITADEL: Missing Token Expiration (`exp`) Validation in JWT IdP Provider

Summary A token lifecycle validation vulnerability was discovered in ZITADEL's external JWT Identity Provider IdP implementation Specifically, within the validation pipeline, if an incoming JWT omits the exp claim entirely, the expiration block is silently skipped rather than rejected. The token ...

ZITADEL: Missing Token Expiration (`exp`) Validation in JWT IdP Provider

Summary A token lifecycle validation vulnerability was discovered in ZITADEL's external JWT Identity Provider IdP implementation Specifically, within the validation pipeline, if an incoming JWT omits the exp claim entirely, the expiration block is silently skipped rather than rejected. The token ...

CVE-2026-89538

A flaw was found in the Linux kernel's Server Unix Remote Procedure Call SUNRPC component. A remote attacker, with a valid Generic Security Service GSS context, could send a specially crafted Kerberos v2 wrap token with an oversized "extra count" ec field. This improper handling of malformed toke...

CVE-2026-89550

A flaw was found in the Linux kernel's SUNRPC svcauthgss module. A remote attacker could send a specially crafted Kerberos krb5 token with an insufficient length. This could lead to a division-by-zero error within the gsskrb5unwrapv2 function, resulting in a Denial of Service DoS for the affected...

CVE-2026-81907 Concrete CMS 9.5.2 and below is vulnerable to Cross-Site Request Forgery (CSRF) vin Express delete_entries allowing mass deletion of all entity records

Concrete CMS 9.5.2 and below is vulnerable to Cross-Site Request Forgery CSRF in the Express "Clear Entries" function POST /index.php/dashboard/system/express/entities/deleteentries because the controller records but does not enforce a failed CSRF token check, allowing the destructive operation t...

CVE-2026-81907

Concrete CMS version 9.5.2 and below is vulnerable to a Cross-Site Request Forgery (CSRF) flaw within the Express "Clear Entries" function (POST /index.php/dashboard/system/express/entities/delete_entries). The root cause is that the controller records but fails to enforce a failed CSRF token che...

EUVD-2026-76691

Concrete CMS 9.5.2 and below is vulnerable to Cross-Site Request Forgery CSRF in the Express "Clear Entries" function POST /index.php/dashboard/system/express/entities/deleteentries because the controller records but does not enforce a failed CSRF token check, allowing the destructive operation t...

DEBIAN-CVE-2026-89550

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauthgss: enforce krb5 token minimum length svcauthgssunwrappriv validates only an upper bound on the wire-supplied opaque length before handing the buffer to gssunwrap: if len xdrstreamremainingxdr goto unwrapfailed;...

AZL-100776 CVE-2026-89550 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauthgss: enforce krb5 token minimum length svcauthgssunwrappriv validates only an upper bound on the wire-supplied opaque length before handing the buffer to gssunwrap: if len xdrstreamremainingxdr goto unwrapfailed;...

CVE-2026-89550

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauthgss: enforce krb5 token minimum length svcauthgssunwrappriv validates only an upper bound on the wire-supplied opaque length before handing the buffer to gssunwrap: if len xdrstreamremainingxdr goto unwrapfailed;...

AZL-100515 CVE-2026-89542 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: harden gsskrb5unwrapv2 against short tokens gsskrb5unwrapv2 reads the EC and RRC header fields at ptr+4 and ptr+6 before validating that the token is at least GSSKRB5TOKHDRLEN 16 bytes long, and its rotateleft helper pass...

AZL-100070 CVE-2026-89538 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Reject krb5 v2 wrap tokens with oversized ec field gsskrb5unwrapv2 sets buf-len to a logical length, which can be much smaller than head0.iovlen the allocated receive-page capacity. It then calls xdrbuftrim with a trim...

DEBIAN-CVE-2026-89538

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Reject krb5 v2 wrap tokens with oversized ec field gsskrb5unwrapv2 sets buf-len to a logical length, which can be much smaller than head0.iovlen the allocated receive-page capacity. It then calls xdrbuftrim with a trim...

CVE-2026-89537

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Reject short RFC 4121 MIC tokens in gsskrb5verifymicv2 gsskrb5verifymicv2 reads the token ID at ptr0..1, the flags byte at ptr2, and padding at ptr3..7, then passes ptr + GSSKRB5TOKHDRLEN and cksumlen to gsskrb5micbuildsg...

CVE-2026-89538

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Reject krb5 v2 wrap tokens with oversized ec field gsskrb5unwrapv2 sets buf-len to a logical length, which can be much smaller than head0.iovlen the allocated receive-page capacity. It then calls xdrbuftrim with a trim...