CVE-2026-42217
Received
Received - Intake
BaseFortify
Publication date: 2026-05-07
Last updated on: 2026-05-07
Assigner: GitHub, Inc.
Description
Description
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From versions 3.0.0 to before 3.2.9, 3.3.0 to before 3.3.11, and 3.4.0 to before 3.4.11, readVariableLengthInteger() decodes a variable-length integer from untrusted EXR input without bounding the shift count. After enough continuation bytes, the code executes a left shift by 70 on a 64-bit value, which is undefined behavior. This issue has been patched in versions 3.2.9, 3.3.11, and 3.4.11.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| academysoftwarefoundation | openexr | From 3.0.0 (inc) to 3.2.9 (exc) |
| academysoftwarefoundation | openexr | From 3.3.0 (inc) to 3.3.11 (exc) |
| academysoftwarefoundation | openexr | From 3.4.0 (inc) to 3.4.11 (exc) |
| academysoftwarefoundation | openexr | 3.2.9 |
| academysoftwarefoundation | openexr | 3.3.11 |
| academysoftwarefoundation | openexr | 3.4.11 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-190 | The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number. |
Attack-Flow Graph
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