CVE-2026-111130
OpenSlide through 4.0.1 Heap Out-of-Bounds Read via MIRAX get_tile_position
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-125 |
| Vendor | openslide |
| Product | openslide |
| Published | Oct 15, 2026 |
Stay Ahead of the Next One
Get instant alerts for openslide openslide
Be the first to know when new medium vulnerabilities affecting openslide openslide are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Affected Versions
OpenSlide / openslide
0 ≤ 4.0.1
References
hackmd.io: https://hackmd.io/@haind-pwn/openslide-mirax-slide-position-index-oob-read github.com: https://github.com/openslide/openslide/blob/fe79a9713bef2bfd64bbfefd15704060764b1274/src/openslide-vendor-mirax.c#L611-L635 github.com: https://github.com/openslide/openslide/blob/fe79a9713bef2bfd64bbfefd15704060764b1274/src/openslide-vendor-mirax.c#L1033-L1034 github.com: https://github.com/openslide/openslide vulncheck.com: https://www.vulncheck.com/advisories/openslide-through-4.0.1-heap-out-of-bounds-read-via-mirax-get-tile-position
Credits
HaiND from the Post and Telecommunication Institute of Technology