{"id":"GO-2026-4537","summary":"Caddy is vulnerable to cross-origin config application via local admin API /load in github.com/caddyserver/caddy/v2","details":"Caddy is vulnerable to cross-origin config application via local admin API /load in github.com/caddyserver/caddy/v2","aliases":["CVE-2026-27589","GHSA-879p-475x-rqh2"],"modified":"2026-02-26T19:10:56.696684Z","published":"2026-02-26T16:27:51Z","database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-4537","review_status":"REVIEWED"},"references":[{"type":"ADVISORY","url":"https://github.com/caddyserver/caddy/security/advisories/GHSA-879p-475x-rqh2"},{"type":"FIX","url":"https://github.com/caddyserver/caddy/commit/65e0ddc22137bbbaa68c842ae0b98d0548504545"},{"type":"WEB","url":"https://github.com/caddyserver/caddy/releases/tag/v2.11.1"}],"affected":[{"package":{"name":"github.com/caddyserver/caddy/v2","ecosystem":"Go","purl":"pkg:golang/github.com/caddyserver/caddy/v2"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.11.1"}]}],"ecosystem_specific":{"imports":[{"path":"github.com/caddyserver/caddy/v2","symbols":["APIError.Error","AdminHandlerFunc.ServeHTTP","AppConfigDir","AppDataDir","BufferedLog","ClearLastConfigIfDifferent","Context.App","Context.AppIfConfigured","Context.IdentityCredentials","Context.LoadModule","Context.LoadModuleByID","Context.Logger","Context.Slogger","Duration.UnmarshalJSON","Event.CloudEvent","GetModule","GetModules","HomeDir","InstanceID","Load","Logging.Logger","NetworkAddress.Listen","NetworkAddress.ListenAll","NetworkAddress.ListenQUIC","NetworkAddress.String","NewContext","NewEvent","PIDFile","ParseDuration","ParseNetworkAddress","ParseNetworkAddressWithDefaults","ParseStructTag","ProvisionContext","RegisterModule","RemoveMetaFields","Replacer.Get","Replacer.GetString","Replacer.ReplaceAll","Replacer.ReplaceFunc","Replacer.ReplaceKnown","Replacer.ReplaceOrErr","Run","Stop","StrictUnmarshalJSON","ToString","TrapSignals","UsagePool.Delete","UsagePool.LoadOrNew","Validate","Version"]}]},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-4537.json"}}],"schema_version":"1.7.3"}