CVE•Published 2026-02-11•Modified 2026-04-14•0 articles on news•6 live references•NVD data

CVE-2026-1837Libjxl_project · Libjxl

Vulnerability data via NVD (ingested)

CVSS v3.1

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS percentile

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Weaknesses (CWE)

CWE-805Buffer Access with Incorrect Length Value CWE-770Allocation of Resources Without Limits or Throttling

Description

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 color space. Buffers allocated for 1-float-per-pixel are used as if they are allocated for 3-float-per-pixel. That happens only if LCMS2 is used as CMS engine. There is another CMS engine available (selected by build flags).

Timeline

Published 2026-02-11

Modified 2026-04-14

External references

NVD MITRE Exploit-DB GitHub PoC Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-1837

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Libjxl Project Libjxl"

All exposed Libjxl Project Libjxl instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Libjxl"

HTTP body or banner mentions "Libjxl" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-1837