Missing Release of Memory after Effective Lifetime Affecting s2n package, versions [0,]
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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- published25 Jul 2026
- disclosed22 Jul 2026
- creditUnknown
Introduced: 22 Jul 2026
NewCVE-2026-16318 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Missing Release of Memory after Effective Lifetime in the QUIC transport parameters extension handler during the processing of HelloRetryRequest messages. An attacker can cause increased memory consumption by repeatedly triggering HelloRetryRequests, leading to memory leaks that accumulate over time. This is only exploitable if the deployment is server-side with QUIC enabled; non-QUIC TLS connections are not affected.