The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learningUpgrade Chainguard
caddy
to version 2.7.5-r1 or higher.
Note: Versions mentioned in the description apply only to the upstream caddy
package and not the caddy
package as distributed by Chainguard
.
See How to fix?
for Chainguard
relevant fixed versions and status.
OpenTelemetry-Go Contrib is a collection of third-party packages for OpenTelemetry-Go. A handler wrapper out of the box adds labels http.user_agent
and http.method
that have unbound cardinality. It leads to the server's potential memory exhaustion when many malicious requests are sent to it. HTTP header User-Agent or HTTP method for requests can be easily set by an attacker to be random and long. The library internally uses httpconv.ServerRequest
that records every value for HTTP method
and User-Agent
. In order to be affected, a program has to use the otelhttp.NewHandler
wrapper and not filter any unknown HTTP methods or User agents on the level of CDN, LB, previous middleware, etc. Version 0.44.0 fixed this issue when the values collected for attribute http.request.method
were changed to be restricted to a set of well-known values and other high cardinality attributes were removed. As a workaround to stop being affected, otelhttp.WithFilter()
can be used, but it requires manual careful configuration to not log certain requests entirely. For convenience and safe usage of this library, it should by default mark with the label unknown
non-standard HTTP methods and User agents to show that such requests were made but do not increase cardinality. In case someone wants to stay with the current behavior, library API should allow to enable it.