{"id":52015,"date":"2026-05-07T00:14:31","date_gmt":"2026-05-07T00:14:31","guid":{"rendered":"https:\/\/zero.redgem.net\/?p=52015"},"modified":"2026-05-07T00:14:31","modified_gmt":"2026-05-07T00:14:31","slug":"openexr-out-of-bounds-read-in-idmanifestinit-during-prefix-expansion","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=52015","title":{"rendered":"OpenEXR: Out-of-bounds read in `IDManifest::init()` during prefix expansion_CVE-2026-42216"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;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. 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