Vulnerability GO-2026-6888

Unknown
UNKNOWN RISK
Vulnerabilities without an assigned CVSS score. Severity is not determinable from available data.
9 hours ago
November 05, 2026 at 10:55 PM UTC
Excessive memory allocation when decompressing crafted streams in github.com/andybalholm/brotli
<1.2.7
<1.2.7

Summary

Excessive memory allocation when decompressing crafted streams in github.com/andybalholm/brotli

Details

In github.com/andybalholm/brotli before v1.2.7, the decompressor allocates memory for Huffman tables and block-type trees on every meta-block header without bounding the cumulative allocations relative to the input size. A small crafted brotli stream containing many empty meta-blocks with new Huffman trees can trigger hundreds of megabytes of allocations per kilobyte of input, leading to denial of service.

Timeline

Published
9 hours ago
November 05, 2026 at 10:55 PM UTC
Fixed (v1.2.7)
13 days ago
October 23, 2026 at 05:03 PM UTC
Last Modified
8 hours ago
November 05, 2026 at 11:25 PM UTC