Allocation of Resources Without Limits or Throttling Affecting org.http4s:http4s-ember-core_3 package, versions [,0.23.35)[1.0.0-M1,1.0.0-M47)
Threat Intelligence
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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- published16 Sept 2026
- disclosed15 Sept 2026
- creditreardonj
Introduced: 15 Sep 2026
NewCVE-2026-69218 (opens in a new tab)How to fix?
Upgrade org.http4s:http4s-ember-core_3 to version 0.23.35, 1.0.0-M47 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the H2Connection process. An attacker can exhaust heap memory and cause service disruption by sending HTTP/2 HEADERS or PUSH_PROMISE frames without END_HEADERS, followed by unbounded CONTINUATION fragments, leading to unbounded memory accumulation before request decoding.