CVE-2026-111130 OpenSlide through 4.0.1 Heap Out-of-Bounds Read via MIRAX get_tile_position
Attackers can cause crashes or read memory via crafted MIRAX slides in OpenSlide, impacting applications using the library.
- 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-2026-111130?
CVE-2026-111130 is a medium-severity memory corruption vulnerability in openslide, published on 15 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
OpenSlide through 4.0.1 contains a heap out-of-bounds read vulnerability in the MIRAX reader that allows attackers to read past the slide_positions array via crafted Slidedat.ini values. Attackers can supply a MIRAX slide whose CameraImageDivisionsPerSide does not evenly divide the image counts, crashing applications that open it and corrupting tile geometry.
Weakness: CWE-125
Which versions are affected by CVE-2026-111130?
How do I fix CVE-2026-111130?
No fix has been published for CVE-2026-111130 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-111130 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111130 exists.
Sources
Also known as DEBIAN-CVE-2026-111130, GHSA-5jq9-3x2q-j76q, UBUNTU-CVE-2026-111130.