PT-2026-55275

Name of the Vulnerable Software and Affected Versions Fiber versions prior to 3.3.0 Fiber versions prior to 2.52.14 Description The BalancerForward proxy helper in middleware/proxy/proxy.go uses the Header.Add function instead of Header.Set when injecting the X-Real-IP header. This behavior appen...

Fleet has a rate limiting bypass via untrusted client IP headers

Impact Fleet trusted client-supplied IP address headers when determining the source IP for incoming requests. This allowed authenticated and unauthenticated clients to spoof their apparent IP address and bypass per-IP rate limiting controls. Fleet determines a client’s public IP address using HTT...

BIT-AUTHENTIK-2023-36456 Authentik lacks Proxy IP headers validation

authentik is an open-source Identity Provider. Prior to versions 2023.4.3 and 2023.5.5, authentik does not verify the source of the X-Forwarded-For and X-Real-IP headers, both in the Python code and the go code. Only authentik setups that are directly accessible by users without a reverse proxy a...