CVE-2026-8813

### Impact When parsing an image with an embedded ICC profile that contains a crafted `multiLocalizedUnicodeType` (`mluc`) tag, ExifReader can be made to allocate memory proportional to attacker-controlled fields in the tag rather than to the actual size of the input. Processing such an image causes excessive memory consumption and can terminate the host process (out-of-memory). Any application that calls `ExifReader.load()` on untrusted images, for example, user uploads in a web service, is affected. ICC profiles are carried in JPEG, TIFF, PNG, HEIC, AVIF, JPEG XL, and WebP, so the issue is reachable from any of those formats. ### Patches Fixed in `[email protected]`. Upgrade with: npm install exifreader@latest Bower users consume the bundled `dist/` files from this repository, and the same fix is committed there. ### Workarounds If upgrading is not immediately possible, configure a [custom build](https://github.com/mattiasw/ExifReader#configure-a-custom-build) that excludes the `icc` module so that ICC parsing (and therefore this code path) is skipped entirely. ### Resources - Patch: https://github.com/mattiasw/ExifReader/commit/c9d88b67e127b2dcc7b46e328df468257fb2dc30

### Impact When parsing an image with an embedded ICC profile that contains a crafted `multiLocalizedUnicodeType` (`mluc`) tag, ExifReader can be made to allocate memory proportional to attacker-controlled fields in the tag rather than to the actual size of the input. Processing such an image causes excessive memory consumption and can terminate the host process (out-of-memory). Any application that calls `ExifReader.load()` on untrusted images, for example, user uploads in a web service, is affected. ICC profiles are carried in JPEG, TIFF, PNG, HEIC, AVIF, JPEG XL, and WebP, so the issue is reachable from any of those formats. ### Patches Fixed in `[email protected]`. Upgrade with: npm install exifreader@latest Bower users consume the bundled `dist/` files from this repository, and the same fix is committed there. ### Workarounds If upgrading is not immediately possible, configure a [custom build](https://github.com/mattiasw/ExifReader#configure-a-custom-build) that excludes the `icc` module so that ICC parsing (and therefore this code path) is skipped entirely. ### Resources - Patch: https://github.com/mattiasw/ExifReader/commit/c9d88b67e127b2dcc7b46e328df468257fb2dc30

Esto afecta a las versiones del paquete exifreader anteriores a la 4.39.0. Una imagen manipulada que contiene una etiqueta ICC mluc puede establecer un recuento de registros controlado por el atacante junto con un tamaño de registro cero. Durante el análisis, ExifReader procesa repetidamente el mismo registro y añade entradas a un array sin suficiente validación de límites, causando un crecimiento excesivo de la memoria. En aplicaciones que analizan imágenes suministradas por el atacante, esto puede llevar a la denegación de servicio por agotamiento de la memoria.