UBUNTU-CVE-2026-34543

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Source
https://ubuntu.com/security/CVE-2026-34543
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34543.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-34543
Upstream
Published
2026-04-01T21:17:00Z
Modified
2026-10-17T12:58:12Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.8, sensitive information from heap memory may be leaked through the decoded pixel data (information disclosure). This occurs under default settings; simply reading a malicious EXR file is sufficient to trigger the issue, without any user interaction. This issue has been patched in version 3.4.8.

References

Affected packages

Ubuntu:26.10 / openexr

Package

Name
openexr
Purl
pkg:deb/ubuntu/openexr?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.1.13-2build1
3.4.6+ds-4ubuntu3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libopenexr-3-4-33",
            "binary_version":  "3.4.6+ds-4ubuntu3"
        },
        {
            "binary_name":  "openexr",
            "binary_version":  "3.4.6+ds-4ubuntu3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34543.json"