Use of Uninitialized Resource Affecting openexr package, versions <3.4.9-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-OPENEXR-15967907
  • published10 Apr 2026
  • disclosed1 Apr 2026

Introduced: 1 Apr 2026

NewCVE-2026-34543  (opens in a new tab)
CWE-908  (opens in a new tab)

How to fix?

Upgrade Chainguard openexr to version 3.4.9-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openexr package and not the openexr package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1