MEDIUM 5.3 NVD
CVE-2026-82522
libjxl before 0.12 contains an integer underflow vulnerability in the container box parser that allows remote attackers to inject arbitrary metadata by exploiti
libjxl before 0.12 contains an integer underflow vulnerability in the container box parser that allows remote attackers to inject arbitrary metadata by exploiting 64-bit box size truncation to size_t on 32-bit platforms. Attackers can supply a crafted JPEG XL file causing the decoder to parse attacker-controlled codestream bytes as phantom box headers, enabling injection of arbitrary metadata (Exif, XMP, IPTC, JUMBF) and potential out-of-bounds reads.
References
- https://github.com/libjxl/libjxl/commit/22ad80af1454f0444ea34115e49ed40517147d68
- https://github.com/libjxl/libjxl/pull/4885
- https://github.com/libjxl/libjxl/releases/tag/v0.12.0
- https://www.vulncheck.com/advisories/libjxl-container-box-parser-integer-underflow-via-32-
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-09-02 via NVD.
vulnfeed aggregates 10363 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.