CVE-2026-123610
LOW
NVD
CVSS Score
3.7
Severity
LOW
Published
Nov 08, 2026
Vendor
unknown
Description
rustls before 0.23.46 contains an uncontrolled memory allocation flaw in its optional Brotli certificate decompression, which limits decompressed output size but accepts an input-selected large history window. Malicious peers can send a certificate with a five-byte Brotli header requesting up to 1 GiB before authentication, aborting Brotli-enabled clients or client-authenticating servers whose allocator cannot satisfy the request.