CVE-2026-112020 LodePNG through 20261006 Heap Out-of-Bounds Read via getFilterTypesInterlaced()
Attackers can trigger heap out-of-bounds reads in LodePNG via crafted interlaced PNGs, potentially disclosing memory or crashing applications.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-112020?
CVE-2026-112020 is a medium-severity vulnerability in lvandeve lodepng, published on 18 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-125
Which versions are affected by CVE-2026-112020?
How do I fix CVE-2026-112020?
No fix has been published for CVE-2026-112020 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-112020 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-112020 exists.
Sources
Also known as GHSA-245m-8wv4-4xg8.