# CVE-2026-34543: openexr: OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for t...

CVE-2026-34543 is fixed in openexr on 1 platform by DEBIAN-CVE-2026-34543 (version 3.4.14-0.1), released April 1, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-34543
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0050
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 1, 2026

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | openexr Debian 14 | 3.4.14-0.1 | [DEBIAN-CVE-2026-34543](https://patchblox.com/security/data/fix/linux/debian-cve-2026-34543.md) | Apr 1, 2026 |

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Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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