Eclipse OpenJ9 up to 0.7.x/0.59.x Xtrace buffer overflow

Summaryinfo

A vulnerability, which was classified as critical, was found in Eclipse OpenJ9 up to 0.7.x/0.59.x. This affects an unknown part of the component Xtrace. Executing a manipulation can lead to buffer overflow. This vulnerability appears as CVE-2026-16439. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in Eclipse OpenJ9 up to 0.7.x/0.59.x. This vulnerability affects some unknown functionality of the component Xtrace. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In Eclipse OpenJ9 versions up to 0.60, using -Xtrace to trace method arguments can lead to buffer underflow.

The advisory is available at github.com. This vulnerability was named CVE-2026-16439 since 07/21/2026. The exploitation appears to be easy. The attack can be initiated remotely. The technical details are unknown and an exploit is not available.

Upgrading to version 0.8.0 or 0.60.0 eliminates this vulnerability.

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Productinfo

Vendor

• Eclipse

Name

• OpenJ9

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26
• 0.27
• 0.28
• 0.29
• 0.30
• 0.31
• 0.32
• 0.33
• 0.34
• 0.35
• 0.36
• 0.37
• 0.38
• 0.39
• 0.40
• 0.41
• 0.42
• 0.43
• 0.44
• 0.45
• 0.46
• 0.47
• 0.48
• 0.49
• 0.50
• 0.51
• 0.52
• 0.53
• 0.54
• 0.55
• 0.56
• 0.57
• 0.58
• 0.59

License

• open-source

CPE 2.3info

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CPE 2.2info

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