CVE & CISA-KEV Catalog

CVE-2026-1837

HIGH
7.5
CVSS v3
NVD

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).

CWE-805CWE-770Allocation of Resources Without Limits or ThrottlingCWE-787Out-of-bounds Write

How to fix

Remediation Available
iOSApple
Fixed in:26.5127110
macOS TahoeApple
Fixed in:26.5127115
tvOSApple
Fixed in:26.5127118
visionOSApple
Fixed in:26.5127120
watchOSApple
Fixed in:26.5127119
jpeg-xlDebian
Fixed in:0.11.2-0.1~deb13u1CVE-2026-1837
Fixed in:0.11.2-0.1CVE-2026-1837
jpeg-xlUbuntu
Fixed in:0.11.1-6ubuntu1.1USN-8146-1
libjpegxl-javaUbuntu
Fixed in:0.11.1-6ubuntu1.1USN-8146-1
libjxl-toolsUbuntu
Fixed in:0.11.1-6ubuntu1.1USN-8146-1
libjxl0.11Ubuntu
Fixed in:0.11.1-6ubuntu1.1USN-8146-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

0.20%probability of exploitation in 30 days
10thpercentile

Low risk: more likely to be exploited than 10% of all known CVEs.

References

Embed a live status badge for CVE-2026-1837
CVE-2026-1837 severity badge

Markdown

[![CVE-2026-1837](https://tridentstack.com/cve/badge/CVE-2026-1837.svg)](https://tridentstack.com/cve/CVE-2026-1837)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-1837"><img src="https://tridentstack.com/cve/badge/CVE-2026-1837.svg" alt="CVE-2026-1837"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-30.