CVE-2026-39886

medium Red Hat
CVSS v3 Base Score
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.1%
Exploitation probability in 30 days
Top 81% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Published: April 21, 2026 (80 days ago)
Last Modified: April 21, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in OpenEXR, an image storage format for the motion picture industry. A remote attacker could exploit a signed integer overflow vulnerability in the HTJ2K (High-Throughput JPEG 2000) decompression path by providing a specially crafted EXR file. This flaw causes an internal bytes-per-line value to overflow, leading to undefined behavior. In certain environments, this could result in a heap out-of-bounds write, potentially causing a denial of service.

CWE

CWE-190

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 github.com 🔗 github.com