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fix: prevent possible dns rebinding for alert notifications directing to internal sevices (#2314)

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- Validate resolved IPs immediately before connecting.
- Guard Shoutrrr requests during initialization and delivery.
- Require admins for services without HTTP client support.
- Test DNS rebinding, redirects, internal hosts, and authorization.
- Upgrade Shoutrrr to 0.20.0 to support custom dialcontext
This commit is contained in:
hank
2026-09-08 08:05:47 -04:00
committed by GitHub
parent 997adc19bb
commit 9a0aa5a89e
9 changed files with 500 additions and 124 deletions
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4
internal/alerts/alerts_test_helpers.go
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@@ -100,10 +100,6 @@ func (am *AlertManager) SetAlertTriggered(alert CachedAlertData, triggered bool)
return am.setAlertTriggered(alert, triggered)
}
func IsInternalURL(rawURL string) (bool, error) {
return isInternalURL(rawURL)
}
// BuildContainerLogExcerpt exposes buildContainerLogExcerpt for testing.
func BuildContainerLogExcerpt(raw string) string {
return buildContainerLogExcerpt(raw)