CVE-2026-102989

TanStack Router is vulnerable to an unauthenticated reflected XSS in its server-function responses. The root cause involves an attacker placing non-public fields in a server-function request payload, causing attacker-controlled middleware state to reach the error path. This allows a crafted URL t...

@ardeora/start-devtools (>=1.0.0, <=1.0.1), @carvajalconsultants/headstart (>=1.0.0, <=1.0.2) +25 more potentially affected by unknown CVE via @tanstack/start-server-core (>=1.121.0-alpha.28, <=1.167.29)

@tanstack/start-server-core NPM version =1.121.0-alpha.28, =1.0.0, =1.0.0, =0.0.14, =1.0.0, =0.3.0, =0.3.0, =1.20.3-alpha.1, =1.111.10, =1.121.23, =0.0.1, =1.121.0-alpha.28, =1.20.3-alpha.1, =1.114.29, =1.121.23, =1.121.0-alpha.28, =2.0.0-beta.19 and more Source cves: unknown CVE Source advisory:...

@ardeora/start-devtools (>=1.0.0, <=1.0.1), @carvajalconsultants/headstart (>=1.0.0, <=1.0.2) +25 more potentially affected by unknown CVE via @tanstack/start-server-core (>=1.121.0-alpha.28, <=1.167.29)

@tanstack/start-server-core NPM version =1.121.0-alpha.28, =1.0.0, =1.0.0, =0.0.14, =1.0.0, =0.3.0, =0.3.0, =1.20.3-alpha.1, =1.111.10, =1.121.23, =0.0.1, =1.121.0-alpha.28, =1.20.3-alpha.1, =1.114.29, =1.121.23, =1.121.0-alpha.28, =2.0.0-beta.19 and more Source cves: unknown CVE Source advisory:...

MAL-2026-3490 Malicious code in @tanstack/start-server-core (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware 7db0631bb410a51551790c0b55b574d53aea5d7a677439e6f3cf877503317658 Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...