Vulnerability · Published Apr 30, 2026 · Assigned by mitre
CVE-2026-42798
Medium 4.0
In plain English
A medium-severity integer overflow in little cms color engine from littlecms. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.0Medium
Exploit odds (30 days)0.1%top 97.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Little CMS (lcms2) 2.16 through 2.18 before 2.19 has an integer overflow in ParseCube in cmscgats.c.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:13 | lcms2 | 2.16-2+deb13u2 | DEBIAN-CVE-2026-42798 |
| Debian:14 | lcms2 | 2.19.1-1 | DEBIAN-CVE-2026-42798 |
| Ubuntu:25.10 | lcms2 | 2.16-2ubuntu0.2 | UBUNTU-CVE-2026-42798 |
| Ubuntu:26.04:LTS | lcms2 | 2.17-1ubuntu0.2 | UBUNTU-CVE-2026-42798 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| littlecms | little cms color engine | 2.16 – before 2.19 |
Weakness: CWE-190 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L