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.
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| CPEs | cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:* | |
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| 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. | |
| Title | OpenEXR: Shift exponent overflow in `readVariableLengthInteger()` (`ImfIDManifest.cpp`) | |
| Weaknesses | CWE-190 | |
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cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-05-07T04:04:54.736Z
Updated: 2026-05-07T12:08:50.166Z
Reserved: 2026-04-25T05:04:37.028Z
Link: CVE-2026-42217
Updated: 2026-05-07T12:08:45.971Z
Status : Analyzed
Published: 2026-05-07T04:16:34.387
Modified: 2026-05-08T17:01:46.713
Link: CVE-2026-42217
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