CVE-2026-54909: Go Missing Bounds Check Before Slice Access

Byte slice index or slice expression accessed before validating slice length with len(). This can trigger an out-of-bounds slice access panic on unexpected or truncated input.

Provally CuratedPublic repositoryMediumMedium confidenceVerifiedApache-2.0Go
greprules fetch cve-2026-54909-go-missing-bounds-check-before-slice-access --engine opengrep

Description

Byte slice index or slice expression accessed before validating slice length with len(). This can trigger an out-of-bounds slice access panic on unexpected or truncated input.