CVE-2026-54660

swagger-typescript-api prior to 13.12.2 forwards the Authorization token to every external $ref request during openapi schema resolution, enabling token exfiltration to attacker-controlled endpoints. The root cause is getRemoteRequestHeaders attaching the token to all fetchRemoteSchemaDocument ca...

check-jsonschema default caching for remote schemas allows for cache confusion

ImpactThe default cache strategy uses the basename of a remote schema as the name of the file in the cache, e.g. https://example.org/schema.json will be stored as schema.json. This naming allows for conflicts. If an attacker can get a user to run check-jsonschema against a malicious schema URL,...

Cache Poisoning

check-jsonschema is vulnerable to Cache Poisoning. The vulnerability is due to improper handling of schema caching, where the basename of a remote schema URL is used as the cache filename. This allows attackers to insert malicious schemas into the cache via schema URL conflicts, potentially causi...

`kubectl --http-cache=<world-accessible dir>` creates world-writeable cached schema files

In kubectl v1.8.0+, schema info is cached in the location specified by --cache-dir defaulting to $HOME/.kube/http-cache, written with world-writeable permissions rw-rw-rw-. If --cache-dir is specified and pointed at a different location accessible to other users/groups, the written files may be...