Out-of-bounds Read Affecting openexr-debugsource package, versions <0:3.1.5-1.amzn2023.0.11


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.06% (19th percentile)

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  • Snyk IDSNYK-AMZN2023-OPENEXRDEBUGSOURCE-16883386
  • published27 May 2026
  • disclosed7 May 2026

Introduced: 7 May 2026

NewCVE-2026-42216  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 openexr-debugsource to version 0:3.1.5-1.amzn2023.0.11 or higher.
This issue was patched in ALAS2023-2026-1713.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openexr-debugsource package and not the openexr-debugsource package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 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 versions 3.0.0 to before 3.2.9, 3.3.0 to before 3.3.11, and 3.4.0 to before 3.4.11, IDManifest::init() reconstructs strings from a prefix-compressed representation. If the previous string is longer than 255 bytes, the next string is expected to begin with a 2-byte prefix length. The code reads stringList[i][0] and stringList[i][1] without checking that the current string has at least two bytes. This issue has been patched in versions 3.2.9, 3.3.11, and 3.4.11.

CVSS Base Scores

version 3.1