CVE-2026-111130
OpenSlide through 4.0.1 Heap Out-of-Bounds Read via MIRAX get_tile_position
- State
- Published
- Severity
- 6.9 Medium
- Published
- Oct 15, 2026
- Updated
- Oct 21, 2026
- Reserved
- Oct 15, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | 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 | VulnCheck |
| 3.1 | 6.1 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H | VulnCheck |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
openslideOpenSlide |
|
References
- https://hackmd.io/@haind-pwn/openslide-mirax-slide-position-index-oob-readtechnical-description
- https://github.com/openslide/openslide/blob/fe79a9713bef2bfd64bbfefd15704060764b1274/src/openslide-vendor-mirax.c#L611-L635technical-description
- https://github.com/openslide/openslide/blob/fe79a9713bef2bfd64bbfefd15704060764b1274/src/openslide-vendor-mirax.c#L1033-L1034technical-description
- https://github.com/openslide/openslideproduct
- VulnCheck Advisory: OpenSlide through 4.0.1 Heap Out-of-Bounds Read via MIRAX get_tile_positionthird-party-advisory
- https://hackmd.io/@haind-pwn/cve-2026-111130-openslide-mirax-slide-position-index-oob-readexploit
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