CVE-2026-34543
Fixed in a distro release EPSS <1%CVSS 8.7
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.
Products: AcademySoftwareFoundation openexr
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| PyPI | openexr | 3.4.8 |
| PyPI | openexr | no fix |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | openexr | 3.4.9-r0 |
| Chainguard | openexr-dev | 3.4.9-r0 |
| Chainguard | openexr-doc | 3.4.9-r0 |
| Chainguard | openexr-libiex | 3.4.9-r0 |
| Chainguard | openexr-libilmthread | 3.4.9-r0 |
| Chainguard | openexr-libopenexr | 3.4.9-r0 |
| Chainguard | openexr-libopenexrcore | 3.4.9-r0 |
| Chainguard | openexr-libopenexrutil | 3.4.9-r0 |
| Debian 12 | openexr | no fix |
| Debian 13 | openexr | no fix |
| Debian 14 | openexr | 3.4.14-0.1 |
| Ubuntu 26.10 | openexr | no fix |
| Wolfi | openexr | 3.4.9-r0 |
| Wolfi | openexr-dev | 3.4.9-r0 |
| Wolfi | openexr-doc | 3.4.9-r0 |
| Wolfi | openexr-libiex | 3.4.9-r0 |
| Wolfi | openexr-libilmthread | 3.4.9-r0 |
| Wolfi | openexr-libopenexr | 3.4.9-r0 |
| Wolfi | openexr-libopenexrcore | 3.4.9-r0 |
| Wolfi | openexr-libopenexrutil | 3.4.9-r0 |
| openSUSE Tumbleweed | openexr | 3.4.9-1.1 |