CVE-2026-53583: Inverted Memcmp Match Check
Inverted `memcmp` comparison: `memcmp` returns 0 when buffers are equal and non-zero when they differ. Using `!!memcmp(...)` to set a match or validation flag treats mismatches as valid and matching data as invalid, which can lead to TLS certificate validation bypass.
Cgreprules fetch cve-2026-53583-inverted-memcmp-match-check --engine opengrepDescription
Inverted `memcmp` comparison: `memcmp` returns 0 when buffers are equal and non-zero when they differ. Using `!!memcmp(...)` to set a match or validation flag treats mismatches as valid and matching data as invalid, which can lead to TLS certificate validation bypass.
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