CVE-2026-42216
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, IDManifest::init() reconstructs strings from a prefix-compressed representation. If the previous string is longer than 255 bytes, the next string is expected to begin with a 2-byte prefix length. The code reads stringList[i][0] and stringList[i][1] without checking that the current string has at least two bytes. 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-125 | The product reads data past the end, or before the beginning, of the intended buffer. |
Attack-Flow Graph
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