UBUNTU-CVE-2026-1837

A specially-crafted file can cause libjxl's decoder to write pixel data to uninitialized unallocated memory. Soon after that data from another uninitialized unallocated region is copied to pixel data. This can be done by requesting color transformation of grayscale images to another grayscale col...

CVE-2025-12474

A specially-crafted file can cause libjxl's decoder to read pixel data from uninitialized but allocated memory. This can be done by causing the decoder to reference an outside-image-bound area in a subsequent patches. An incorrect optimization causes the decoder to omit populating those areas...

DEBIAN-CVE-2025-12474

A specially-crafted file can cause libjxl's decoder to read pixel data from uninitialized but allocated memory. This can be done by causing the decoder to reference an outside-image-bound area in a subsequent patches. An incorrect optimization causes the decoder to omit populating those areas...

UBUNTU-CVE-2025-12474

A specially-crafted file can cause libjxl's decoder to read pixel data from uninitialized but allocated memory. This can be done by causing the decoder to reference an outside-image-bound area in a subsequent patches. An incorrect optimization causes the decoder to omit populating those areas...

Use of Uninitialized Resource

Overview Affected versions of this package are vulnerable to Use of Uninitialized Resource due to an uninitialized memory read in the decoder. An attacker can cause a denial of service by submitting specially crafted input that triggers the incorrect optimization in patch handling. Remediation...

CVE-2025-12474 libjxl: Uninitialized memory read in decoder due to incorrect optimization in patch handling

A specially-crafted file can cause libjxl's decoder to read pixel data from uninitialized but allocated memory. This can be done by causing the decoder to reference an outside-image-bound area in a subsequent patches. An incorrect optimization causes the decoder to omit populating those areas...

CVE-2025-12474

A specially-crafted file can cause libjxl's decoder to read pixel data from uninitialized but allocated memory. This can be done by causing the decoder to reference an outside-image-bound area in a subsequent patches. An incorrect optimization causes the decoder to omit populating those areas...

CVE-2025-12474

The CVE describes a vulnerability in libjxl where a specially crafted file can cause the decoder to read pixel data from uninitialized memory, due to referencing an outside-image-bound area in later patches and an optimization that omits populating those areas. Several connected advisories confir...

CVE-2025-12474

A specially-crafted file can cause libjxl's decoder to read pixel data from uninitialized but allocated memory. This can be done by causing the decoder to reference an outside-image-bound area in a subsequent patches. An incorrect optimization causes the decoder to omit populating those areas...

CVE-2025-12474 libjxl: Uninitialized memory read in decoder due to incorrect optimization in patch handling

A specially-crafted file can cause libjxl's decoder to read pixel data from uninitialized but allocated memory. This can be done by causing the decoder to reference an outside-image-bound area in a subsequent patches. An incorrect optimization causes the decoder to omit populating those areas...

CVE-2025-12474

A specially-crafted file can cause libjxl's decoder to read pixel data from uninitialized but allocated memory. This can be done by causing the decoder to reference an outside-image-bound area in a subsequent patches. An incorrect optimization causes the decoder to omit populating those areas...

CVE-2025-12474 libjxl: Uninitialized memory read in decoder due to incorrect optimization in patch handling

A specially-crafted file can cause libjxl's decoder to read pixel data from uninitialized but allocated memory. This can be done by causing the decoder to reference an outside-image-bound area in a subsequent patches. An incorrect optimization causes the decoder to omit populating those areas...

CVE-2026-1837

A specially-crafted file can cause libjxl's decoder to write pixel data to uninitialized unallocated memory. Soon after that data from another uninitialized unallocated region is copied to pixel data. This can be done by requesting color transformation of grayscale images to another grayscale col...

CVE-2026-1837

The connected records confirm CVE-2026-1837 affects libjxl’s decoder when LCMS2 is used as the CMS. A specially-crafted file can trigger an out-of-bounds write by transforming grayscale images to another grayscale color space, where buffers allocated for 1-float-per-pixel are treated as 3-float-p...

CVE-2026-1837 libjxl: Out-of-bounds write in grayscale color transformation when using LCMS2

A specially-crafted file can cause libjxl's decoder to write pixel data to uninitialized unallocated memory. Soon after that data from another uninitialized unallocated region is copied to pixel data. This can be done by requesting color transformation of grayscale images to another grayscale col...

Out-of-bounds Write

Overview Affected versions of this package are vulnerable to Out-of-bounds Write via the IsNeeded function when using LCMS2. An attacker can achieve arbitrary code execution or cause a denial of service by tricking a user into processing a specially crafted image file. Remediation Upgrade libjxl ...

CVE-2026-1837 libjxl: Out-of-bounds write in grayscale color transformation when using LCMS2

A specially-crafted file can cause libjxl's decoder to write pixel data to uninitialized unallocated memory. Soon after that data from another uninitialized unallocated region is copied to pixel data. This can be done by requesting color transformation of grayscale images to another grayscale col...

CVE-2026-1837 libjxl: Out-of-bounds write in grayscale color transformation when using LCMS2

A specially-crafted file can cause libjxl's decoder to write pixel data to uninitialized unallocated memory. Soon after that data from another uninitialized unallocated region is copied to pixel data. This can be done by requesting color transformation of grayscale images to another grayscale col...

CVE-2026-1837: Buffer Access with Incorrect Length Value

A specially-crafted file can cause libjxl's decoder to write pixel data to uninitialized unallocated memory. Soon after that data from another uninitialized unallocated region is copied to pixel data. This can be done by requesting color transformation of grayscale images to another grayscale col...

CVE-2025-12474

A specially-crafted file can cause libjxl's decoder to read pixel data from uninitialized but allocated memory. This can be done by causing the decoder to reference an outside-image-bound area in a subsequent patches. An incorrect optimization causes the decoder to omit populating those areas...