CVE-2026-110597: Out-of-bounds Read in syoyo tinyexr
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.
CVSS v4.0
Score 6.9medium
Affected software
syoyo
tinyexr
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-110597 is a heap out-of-bounds read vulnerability in syoyo's Tinyexr library through version 3.2.0. The issue exists in the ParseEXRMultipartHeaderFromMemory() function, where a stale remaining-size value allows attackers to supply a specially crafted multi-part EXR file. This crafted file can cause later part headers to bypass the ReadAttribute() bounds checks, resulting in reading beyond allocated buffers. The impact includes application crashes or leaking adjacent heap memory into attribute values.
Potential Impact
Exploitation of this vulnerability can lead to application crashes or disclosure of adjacent heap memory contents. This could potentially expose sensitive information stored in memory. The CVSS 4.0 score is 6.9 (medium severity), indicating a moderate risk primarily due to local attack vector and user interaction requirements.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch link is provided in the available data. Users should monitor the vendor's announcements for updates and avoid processing untrusted multi-part EXR files until a fix is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-14T13:07:19.216Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6acf92e92cdf04f6568a2e18
Added to database: 10/14/2026, 14:34:17 UTC
Last enriched: 10/14/2026, 15:18:50 UTC
Last updated: 10/14/2026, 19:00:29 UTC
Views: 3
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