Ubuntu USN · USN-8259-1

OpenEXR vulnerabilities

Published: Thu, 07 May 2026 15:37

CVE-2026-27622CVE-2026-34380CVE-2026-34588

Summary

Several security issues were fixed in OpenEXR.

Details

Quang Luong discovered that OpenEXR incorrectly handled sample count accumulation when processing deep scan line image files. An attacker could possibly use this issue to cause OpenEXR to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2026-27622) It was discovered that OpenEXR had an integer overflow in the PXR24 decoder. An attacker could possibly use this issue to cause OpenEXR to crash, resulting in a denial of service, or execute arbitrary code. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-34380) Quang Luong discovered that OpenEXR had a signed integer overflow in the PIZ decoder. An attacker could possibly use this issue to cause OpenEXR to crash, resulting in a denial of service, or execute arbitrary code. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-34588)

Recommended actions per Ubuntu release

StackPatch playbook auto-generated per release codename and per affected package.

Ubuntu bionic

openexr→2.2.0-11.1ubuntu1.9+esm1apt_upgrade
Standard apt upgrade. Install 2.2.0-11.1ubuntu1.9+esm1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y openexr
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libopenexr-dev→2.2.0-11.1ubuntu1.9+esm1apt_upgrade
Standard apt upgrade. Install 2.2.0-11.1ubuntu1.9+esm1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libopenexr-dev
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libopenexr22→2.2.0-11.1ubuntu1.9+esm1apt_upgrade
Standard apt upgrade. Install 2.2.0-11.1ubuntu1.9+esm1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libopenexr22
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
openexr→2.2.0-11.1ubuntu1.9+esm1apt_upgrade
Standard apt upgrade. Install 2.2.0-11.1ubuntu1.9+esm1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y openexr
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
openexr-doc→2.2.0-11.1ubuntu1.9+esm1apt_upgrade
Standard apt upgrade. Install 2.2.0-11.1ubuntu1.9+esm1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y openexr-doc
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu focal

openexr→2.3.0-6ubuntu0.5+esm2apt_upgrade
Standard apt upgrade. Install 2.3.0-6ubuntu0.5+esm2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y openexr
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libopenexr-dev→2.3.0-6ubuntu0.5+esm2apt_upgrade
Standard apt upgrade. Install 2.3.0-6ubuntu0.5+esm2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libopenexr-dev
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libopenexr24→2.3.0-6ubuntu0.5+esm2apt_upgrade
Standard apt upgrade. Install 2.3.0-6ubuntu0.5+esm2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libopenexr24
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
openexr→2.3.0-6ubuntu0.5+esm2apt_upgrade
Standard apt upgrade. Install 2.3.0-6ubuntu0.5+esm2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y openexr
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
openexr-doc→2.3.0-6ubuntu0.5+esm2apt_upgrade
Standard apt upgrade. Install 2.3.0-6ubuntu0.5+esm2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y openexr-doc
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu jammy

openexr→2.5.7-1ubuntu0.1~esm2apt_upgrade_esm
Fixed at 2.5.7-1ubuntu0.1~esm2 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y openexr=2.5.7-1ubuntu0.1~esm2
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libopenexr-dev→2.5.7-1ubuntu0.1~esm2apt_upgrade_esm
Fixed at 2.5.7-1ubuntu0.1~esm2 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libopenexr-dev=2.5.7-1ubuntu0.1~esm2
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libopenexr25→2.5.7-1ubuntu0.1~esm2apt_upgrade_esm
Fixed at 2.5.7-1ubuntu0.1~esm2 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libopenexr25=2.5.7-1ubuntu0.1~esm2
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
openexr→2.5.7-1ubuntu0.1~esm2apt_upgrade_esm
Fixed at 2.5.7-1ubuntu0.1~esm2 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y openexr=2.5.7-1ubuntu0.1~esm2
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
openexr-doc→2.5.7-1ubuntu0.1~esm2apt_upgrade_esm
Fixed at 2.5.7-1ubuntu0.1~esm2 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y openexr-doc=2.5.7-1ubuntu0.1~esm2
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.

Ubuntu noble

openexr→3.1.5-5.1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 3.1.5-5.1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y openexr=3.1.5-5.1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libopenexr-3-1-30→3.1.5-5.1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 3.1.5-5.1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libopenexr-3-1-30=3.1.5-5.1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libopenexr-dev→3.1.5-5.1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 3.1.5-5.1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libopenexr-dev=3.1.5-5.1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libopenexr-doc→3.1.5-5.1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 3.1.5-5.1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libopenexr-doc=3.1.5-5.1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
openexr→3.1.5-5.1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 3.1.5-5.1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y openexr=3.1.5-5.1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.

Ubuntu resolute

openexr→3.1.13-2ubuntu0.26.04.1~esm1apt_upgrade_esm
Fixed at 3.1.13-2ubuntu0.26.04.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y openexr=3.1.13-2ubuntu0.26.04.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libopenexr-3-1-30→3.1.13-2ubuntu0.26.04.1~esm1apt_upgrade_esm
Fixed at 3.1.13-2ubuntu0.26.04.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libopenexr-3-1-30=3.1.13-2ubuntu0.26.04.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libopenexr-dev→3.1.13-2ubuntu0.26.04.1~esm1apt_upgrade_esm
Fixed at 3.1.13-2ubuntu0.26.04.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libopenexr-dev=3.1.13-2ubuntu0.26.04.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libopenexr-doc→3.1.13-2ubuntu0.26.04.1~esm1apt_upgrade_esm
Fixed at 3.1.13-2ubuntu0.26.04.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libopenexr-doc=3.1.13-2ubuntu0.26.04.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
openexr→3.1.13-2ubuntu0.26.04.1~esm1apt_upgrade_esm
Fixed at 3.1.13-2ubuntu0.26.04.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y openexr=3.1.13-2ubuntu0.26.04.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.

Ubuntu xenial

openexr→2.2.0-10ubuntu2.6+esm4apt_upgrade
Standard apt upgrade. Install 2.2.0-10ubuntu2.6+esm4 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y openexr
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libopenexr-dev→2.2.0-10ubuntu2.6+esm4apt_upgrade
Standard apt upgrade. Install 2.2.0-10ubuntu2.6+esm4 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libopenexr-dev
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libopenexr22→2.2.0-10ubuntu2.6+esm4apt_upgrade
Standard apt upgrade. Install 2.2.0-10ubuntu2.6+esm4 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libopenexr22
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
openexr→2.2.0-10ubuntu2.6+esm4apt_upgrade
Standard apt upgrade. Install 2.2.0-10ubuntu2.6+esm4 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y openexr
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
openexr-doc→2.2.0-10ubuntu2.6+esm4apt_upgrade
Standard apt upgrade. Install 2.2.0-10ubuntu2.6+esm4 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y openexr-doc
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

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