Medium severity6.1NVD Advisory· Published Oct 18, 2026

CVE-2026-112020

Description

LodePNG through 20261006 contains a heap out-of-bounds read vulnerability in lodepng::getFilterTypesInterlaced() in lodepng_util.cpp that lacks bounds checks on decompressed IDAT data. Attackers can supply a crafted interlaced PNG declaring a raster larger than its IDAT stream to disclose adjacent heap memory or crash applications.

Affected products

Lodepng/Lodepngllm-fuzzy
Range: <=20261006

Patches

Vulnerability mechanics

References

github.com/lvandeve/lodepng/blob/e584a8490db1b76b81bf298c11c09d3b55d9c270/lodepng_util.cppnvd
hackmd.io/@haindpwn/lodepng-getfiltertypesinterlaced-short-idat-oob-readnvd
www.vulncheck.com/advisories/lodepng-through-20261006-heap-out-of-bounds-read-via-getfiltertypesinterlacednvd

News mentions

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