Allocation of Resources Without Limits or Throttling Affecting github.com/quic-go/quic-go/http3 package, versions <0.59.1
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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- published4 Jun 2026
- disclosed3 Jun 2026
- creditUnknown
Introduced: 3 Jun 2026
CVE-2026-40898 Â (opens in a new tab)How to fix?
Upgrade github.com/quic-go/quic-go/http3 to version 0.59.1 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through the processing of QPACK-encoded HEADERS frames containing trailer field sections. An attacker can cause excessive memory allocation by sending specially crafted frames with many unique field names or large values, leading to resource exhaustion or application crashes.