CVE-2026-110597
Tinyexr through 3.2.0 Heap Out-of-Bounds Read via ParseEXRMultipartHeaderFromMemory
- State
- Published
- Severity
- 6.9 Medium
- Published
- Oct 14, 2026
- Updated
- Oct 14, 2026
- Reserved
- Oct 14, 2026
Description
Tinyexr through 3.2.0 contains a heap out-of-bounds read vulnerability in ParseEXRMultipartHeaderFromMemory() that allows attackers to read beyond buffers due to a stale remaining-size value. Attackers can supply a crafted multi-part EXR file whose later part headers bypass ReadAttribute() bounds checks, crashing applications or leaking adjacent heap memory into attribute values.
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 |
|---|---|
tinyexrsyoyo |
|
References
- https://hackmd.io/@haind-pwn/tinyexr-multipart-header-stale-size-oob-readthird-party-advisory
- https://github.com/syoyo/tinyexr/blob/6f470c9ab24bf3992bc512ce07e8ecb00d9bf105/tinyexr.h#L10551-L10621technical-description
- https://github.com/syoyo/tinyexr/blob/6f470c9ab24bf3992bc512ce07e8ecb00d9bf105/tinyexr.h#L1207-L1266technical-description
- VulnCheck Advisory: Tinyexr through 3.2.0 Heap Out-of-Bounds Read via ParseEXRMultipartHeaderFromMemorythird-party-advisory
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