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CVE-2026-5318 describes an out-of-bounds write in LibRaw up to version 0.22.0. The flaw is in HuffTable::initval in src/decompressors/losslessjpeg.cpp, within the JPEG DHT parser. According to the provided content, manipulation of the bits[] argument can cause memory to be written past the intended bounds during Huffman table initialization while parsing a specially crafted image file. The issue is remotely triggerable via malicious input files processed by affected LibRaw-based applications. The content also states that CVE-2026-5318 appears to be a duplicate of TALOS-2026-2330 / CVE-2026-20911, which is characterized as a heap-based buffer overflow in the same function.
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