GHSA-XQXV-4JC2-X56X ZITADEL: Missing client_id binding in OIDC authorization code exchange and refresh token flows (RFC 6749 Section 4.1.3 violation)

Summary Zitadel's OAuth2 / OIDC CodeExchange and RefreshToken implementations omit a critical validation step to ensure that the requesting client matches the client that originally initiated the authorization flow. This violates RFC 6749 Section 4.1.3, which mandates that the authorization serve...

ZITADEL: Missing client_id binding in OIDC authorization code exchange and refresh token flows (RFC 6749 Section 4.1.3 violation)

Summary Zitadel's OAuth2 / OIDC CodeExchange and RefreshToken implementations omit a critical validation step to ensure that the requesting client matches the client that originally initiated the authorization flow. This violates RFC 6749 Section 4.1.3, which mandates that the authorization serve...

EUVD-2026-37891

Some shadow paging errors paths will switch the page-tables without updating the currently running vCPU reference. This causes a mismatch between the loaded page-tables and the mapcache metadata which can lead to corruption of the mapcache...

CVE-2026-42488 x86: mismatched mapcache metadata

Some shadow paging errors paths will switch the page-tables without updating the currently running vCPU reference. This causes a mismatch between the loaded page-tables and the mapcache metadata which can lead to corruption of the mapcache...

CVE-2026-42488 x86: mismatched mapcache metadata

Some shadow paging errors paths will switch the page-tables without updating the currently running vCPU reference. This causes a mismatch between the loaded page-tables and the mapcache metadata which can lead to corruption of the mapcache...

CVE-2026-42488

CVE-2026-42488 concerns the Xen hypervisor. Some shadow paging error paths can switch page-tables without updating the running vCPU reference, causing a mismatch between loaded page-tables and mapcache metadata and potentially leading to mapcache corruption. Affected products/versions are implied...

CVE-2026-42488

Some shadow paging errors paths will switch the page-tables without updating the currently running vCPU reference. This causes a mismatch between the loaded page-tables and the mapcache metadata which can lead to corruption of the mapcache...

CVE-2026-42488

Some shadow paging errors paths will switch the page-tables without updating the currently running vCPU reference. This causes a mismatch between the loaded page-tables and the mapcache metadata which can lead to corruption of the mapcache...

CVE-2026-50643

8cc is vulnerable to an Out‑of‑Bounds Read due to improper handling of line directives and GNU linemarkers. The compiler accepts attacker-controlled filename and line number metadata and later uses it without validation when accessing source line arrays. By supplying invalid or oversized line...

GHSA-6X8V-2FQ5-2229 ZITADEL: Cross-Tenant User Leakage via Recycled Identifiers

Summary A flaw in the user lifecycle enforcement allowed deleted users to retain their original organization/tenant association. Recreating a deleted user under a distinct organization can cause the new user instance to be incorrectly provisioned within the original organization if the previous I...

ZITADEL: Cross-Tenant User Leakage via Recycled Identifiers

Summary A flaw in the user lifecycle enforcement allowed deleted users to retain their original organization/tenant association. Recreating a deleted user under a distinct organization can cause the new user instance to be incorrectly provisioned within the original organization if the previous I...

GHSA-2C85-RFCC-G74J Karate Mock Server RCE via embedded expression evaluation of request-derived data

Summary Karate Mock Server can execute embedded expressions found in attacker-controlled HTTP request data when a Mock Server feature assigns request-derived values such as request, requestHeaders, or requestParams to variables. In affected scenarios, an unauthenticated remote attacker can place ...

Karate Mock Server RCE via embedded expression evaluation of request-derived data

Summary Karate Mock Server can execute embedded expressions found in attacker-controlled HTTP request data when a Mock Server feature assigns request-derived values such as request, requestHeaders, or requestParams to variables. In affected scenarios, an unauthenticated remote attacker can place ...

Hydro: Insufficient session expiration when recreating sessions

Impact Hydro contains an insufficient session expiration vulnerability in its session recreation logic. When a session is recreated, including during logout or other session renewal flows, Hydro creates a new session token but does not delete the previous server-side session token. As a result, a...

GHSA-94JP-7776-QJ6Q Hydro: Insufficient session expiration when recreating sessions

Impact Hydro contains an insufficient session expiration vulnerability in its session recreation logic. When a session is recreated, including during logout or other session renewal flows, Hydro creates a new session token but does not delete the previous server-side session token. As a result, a...

GHSA-64MM-VXMG-Q3VJ http-proxy-middleware `router` host+path substring matching allows Host-header-driven backend routing bypass

Summary http-proxy-middleware documents router proxy-table entries as host, path, or host+path selectors, but the host+path implementation uses unanchored substring matching on attacker-controlled request metadata. As a result, a crafted Host header that is only a superstring match for a configur...

http-proxy-middleware `router` host+path substring matching allows Host-header-driven backend routing bypass

Summary http-proxy-middleware documents router proxy-table entries as host, path, or host+path selectors, but the host+path implementation uses unanchored substring matching on attacker-controlled request metadata. As a result, a crafted Host header that is only a superstring match for a configur...

GHSA-X9G3-XRWR-CWFG piscina: Prototype Pollution Gadget → RCE via inherited options.filename

Summary piscina's constructor and run paths read the filename option via plain member access: js // dist/index.js line 92 constructor const filename = options.filename ? 0, common1.maybeFileURLToPathoptions.filename : null; this.options = ...kDefaultOptions, ...options, filename, maxQueue: 0 ; //...

piscina: Prototype Pollution Gadget → RCE via inherited options.filename

Summary piscina's constructor and run paths read the filename option via plain member access: js // dist/index.js line 92 constructor const filename = options.filename ? 0, common1.maybeFileURLToPathoptions.filename : null; this.options = ...kDefaultOptions, ...options, filename, maxQueue: 0 ; //...

ZITADEL: Server-Side Request Forgery (SSRF) and Denylist Bypass in Outgoing HTTP Components

Summary A Server-Side Request Forgery SSRF vulnerability was discovered in Zitadel affecting: HTTP Notification Channels: Used as an alternative to SMTP/Twilio configurations, sending payloads to user-defined URLs via HTTP POST webhooks. OIDC BackChannel Logout: Terminates sessions across differe...