Eclipse OMR <=0.11 arraycmp SIMD Zero-Byte Comparison Bug
CVE-2026-16243 Published on July 21, 2026
Eclipse OMR : arraycmp SIMD implementation does not check if the number of bytes to compare is zero
In Eclipse OMR versions up to 0.11, the arraycmp SIMD implementation for Z and P does not check if the number of bytes to compare is zero.
Weakness Type
Out-of-bounds Read
The software reads data past the end, or before the beginning, of the intended buffer. Typically, this can allow attackers to read sensitive information from other memory locations or cause a crash. A crash can occur when the code reads a variable amount of data and assumes that a sentinel exists to stop the read operation, such as a NUL in a string. The expected sentinel might not be located in the out-of-bounds memory, causing excessive data to be read, leading to a segmentation fault or a buffer overflow. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent read operation then produces undefined or unexpected results.
Products Associated with CVE-2026-16243
Want to know whenever a new CVE is published for Eclipse Omr? stack.watch will email you.
Affected Versions
Eclipse Foundation Eclipse OMR:- Version 0.1 and below 0.11 is affected.
- Before 0.1 is unaffected.
- Version 0.11 is unaffected.