CVEvulnerability
CVE-2026-82522
5.3 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-09-02
- Last modified
- 2026-09-23
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 5.3 MEDIUM — 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- Weaknesses
- CWE-681
Description
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.
Related
Weakness · CWE (1)
- CWE-681 Incorrect Conversion between Numeric Types weakness
References
- https://github.com/libjxl/libjxl/commit/22ad80af1454f0444ea34115e49ed40517147d68 github.com
- https://github.com/libjxl/libjxl/pull/4885 github.com
- https://github.com/libjxl/libjxl/releases/tag/v0.12.0 github.com
- https://www.vulncheck.com/advisories/libjxl-container-box-parser-integer-underflow-via-32-bit-size-truncation www.vulncheck.com