CVE-2026-44636 | saitoha libsixel up to 1.8.7-r1 SIXEL Encoder sixel_encode_highcolor heap-based overflow (GHSA-hx93-w8p2-ffh5)

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A vulnerability identified as critical has been detected in saitoha libsixel up to 1.8.7-r1. Impacted is the function sixel_encode_highcolor of the component SIXEL Encoder. The manipulation leads to heap-based buffer overflow.

This vulnerability is referenced as CVE-2026-44636. Remote exploitation of the attack is possible. No exploit is available.

You should upgrade the affected component.VulDB Recent EntriesRead More