Missing Release of Memory after Effective Lifetime Affecting io.netty:netty-codec-haproxy package, versions [,4.1.135.Final)[4.2.0.Final,4.2.15.Final)
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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- published12 Jun 2026
- disclosed11 Jun 2026
- creditUnknown
Introduced: 11 Jun 2026
CVE-2026-48059 (opens in a new tab)How to fix?
Upgrade io.netty:netty-codec-haproxy to version 4.1.135.Final, 4.2.15.Final or higher.
Overview
Affected versions of this package are vulnerable to Missing Release of Memory after Effective Lifetime in the parsing process of nested PP2_TYPE_SSL TLVs within the HAProxy PROXY protocol v2 codec. An attacker can cause memory exhaustion by sending syntactically valid headers containing deeply nested PP2_TYPE_SSL TLVs, which leads to a memory leak as the underlying buffer remains pinned.