CVE-2026-82522
5.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| libjxl | libjxl | 0 < 0.12.0 | affected |
Weaknesses
- CWE-681: Incorrect Conversion between Numeric Types
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/libjxl/libjxl/releases/tag/v0.12.0
- https://github.com/libjxl/libjxl/pull/4885
- https://github.com/libjxl/libjxl/commit/22ad80af1454f0444ea34115e49ed40517147d68
- https://www.vulncheck.com/advisories/libjxl-container-box-parser-integer-underflow-via-32-bit-size-truncation
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