Tilt defines dev environments as code for microservice apps on Kubernetes. From 0.20.8 through 0.37.3, the Tilt HUD HTTP server registers handlers on a gorilla/mux router with no authenticating middleware. When the HUD is bound to a non-loopback address, an unauthenticated network caller can trigger developer-defined resources, tamper with Tiltfile arguments, read full engine state including the session token, and invoke apiserver resources through the token-attaching /proxy handler. This issue is fixed in version 0.37.4.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-306"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55884.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0.20.8"
},
{
"fixed": "0.37.4"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "47393fba7f6ef5e305d5e814551feef8e4acbc0a"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v0.37.4",
"range": [
{
"fixed": "0b591662e013ba2d551d4861009d7b3c2276c90e"
}
],
"source": "REFERENCES_TAG"
}
]
}