CVE-2026-3547 (GCVE-0-2026-3547)

Vulnerability from cvelistv5 – Published: 2026-03-19 20:20 – Updated: 2026-03-19 20:20
VLAI?
Title
wolfSSL: out-of-bounds read (DoS) in ALPN parsing due to incomplete validation
Summary
Out-of-bounds read in ALPN parsing due to incomplete validation. wolfSSL 5.8.4 and earlier contained an out-of-bounds read in ALPN handling when built with ALPN enabled (HAVE_ALPN / --enable-alpn). A crafted ALPN protocol list could trigger an out-of-bounds read, leading to a potential process crash (denial of service). Note that ALPN is disabled by default, but is enabled for these 3rd party compatibility features: enable-apachehttpd, enable-bind, enable-curl, enable-haproxy, enable-hitch, enable-lighty, enable-jni, enable-nginx, enable-quic.
CWE
Assigner
Impacted products
Vendor Product Version
wolfSSL wolfSSL Affected: 0 , < 5.9.0 (semver)
Create a notification for this product.
Credits
Oleh Konko
Show details on NVD website

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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