DEBIAN-CVE-2026-34588

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Source
https://security-tracker.debian.org/tracker/CVE-2026-34588
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34588.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-34588
Upstream
  • CVE-2026-34588
Published
2026-04-06T16:16:35.893Z
Modified
2026-04-08T09:02:28.583391Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
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 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9, internalexrundo_piz() advances the working wavelet pointer with signed 32-bit arithmetic. Because nx, ny, and wcount are int, a crafted EXR file can make this product overflow and wrap. The next channel then decodes from an incorrect address. The wavelet decode path operates in place, so this yields both out-of-bounds reads and out-of-bounds writes. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.

References

Affected packages

Debian:11 / openexr

Package

Name
openexr
Purl
pkg:deb/debian/openexr?arch=source

Affected ranges

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

Affected versions

2.*
2.5.4-2
2.5.4-2+deb11u1
2.5.7-1
3.*
3.1.3-1
3.1.3-2
3.1.4-1
3.1.5-1
3.1.5-2
3.1.5-3
3.1.5-4
3.1.5-5
3.1.5-5.1
3.1.5-5.1+hurd.1
3.1.13-1
3.1.13-2
3.4.6+ds-1
3.4.6+ds-2
3.4.6+ds-3
3.4.6+ds-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34588.json"

Debian:12 / openexr

Package

Name
openexr
Purl
pkg:deb/debian/openexr?arch=source

Affected ranges

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

Affected versions

3.*
3.1.5-5
3.1.5-5.1
3.1.5-5.1+hurd.1
3.1.13-1
3.1.13-2
3.4.6+ds-1
3.4.6+ds-2
3.4.6+ds-3
3.4.6+ds-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34588.json"

Debian:13 / openexr

Package

Name
openexr
Purl
pkg:deb/debian/openexr?arch=source

Affected ranges

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

Affected versions

3.*
3.1.13-2
3.4.6+ds-1
3.4.6+ds-2
3.4.6+ds-3
3.4.6+ds-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34588.json"

Debian:14 / openexr

Package

Name
openexr
Purl
pkg:deb/debian/openexr?arch=source

Affected ranges

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

Affected versions

3.*
3.1.13-2
3.4.6+ds-1
3.4.6+ds-2
3.4.6+ds-3
3.4.6+ds-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34588.json"