AIKIDO-2026-698682
OpenEXR is vulnerable to Out-of-bounds Read
55
Medium Risk
This Affects:
OpenEXRTL;DR
OpenEXR's HTJ2K decoder, embedded in the PyPI OpenEXR extension, parses a chunk header-length field (PLEN) and advances the compressed-buffer pointer without rejecting values larger than the available compressed data. A crafted HTJ2K EXR with an oversized PLEN causes an out-of-bounds read during decode through the Python bindings. The fix validates the HTJ2K chunk header length before decode.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you decode untrusted HTJ2K-compressed EXR files through the OpenEXR Python bindings.
Background info
OpenEXR is vulnerable to Out-of-bounds Read in versions 3.4.0 - 3.4.12.
How to fix this
Upgrade the OpenEXR library to the patch version.
Links
Are You Affected?
Connect your repositories to instantly see whether vulnerable or malicious packages exist in your codebase.
Free. No credit card required.
I consent to receiving marketing communications based on Aikido’s Privacy Policy.
SOC 2Compliant
ISO 27001CompliantISO 42001Compliant
FedRAMPImplementing© All Intel data is openly available and commercially licensed.