CVE-2026-111130: medium-severity vulnerability in openslide
OpenSlide through 4.0.1 Heap Out-of-Bounds Read via MIRAX get_tile_position
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 6.9epss 0.2%
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.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
OpenSlide · openslidepublic PoCs found — 1
cve_referencehackmd.io/@haind-pwn/cve-2026-111130-openslide-mirax-slide-position-index-oob-readunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/openslide/openslidehttps://github.com/openslide/openslide/blob/fe79a9713bef2bfd64bbfefd15704060764b1274/src/openslide-vendor-mirax.c#L1033-L1034https://github.com/openslide/openslide/blob/fe79a9713bef2bfd64bbfefd15704060764b1274/src/openslide-vendor-mirax.c#L611-L635https://hackmd.io/@haind-pwn/cve-2026-111130-openslide-mirax-slide-position-index-oob-readhttps://hackmd.io/@haind-pwn/openslide-mirax-slide-position-index-oob-readhttps://www.vulncheck.com/advisories/openslide-through-4.0.1-heap-out-of-bounds-read-via-mirax-get-tile-position