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JITServer: Multiple Denial of Service vulnerabilities via out-of-bounds heap reads during message and reply parsing

Exact source revision recorded 26 Oct 2026 18:35:30 UTC. It does not establish the source's current position. Latest evidence.

cve-program · CVE-2026-110938

Published

In Eclipse OpenJ9 versions up to 0.63.0, the JITServer component is vulnerable to denial of service due to improper boundary checks during protocol message and reply handling. An unauthenticated remote attacker or malicious JITServer can transmit malformed network payloads that cause out-of-bounds heap reads, immediately crashing the JITServer daemon or client JVM process via a segmentation fault (SIGSEGV).

Source published
21 Oct 2026 08:03:26 UTC
Source modified
26 Oct 2026 17:57:34 UTC
Observed here
26 Oct 2026 18:35:30 UTC
Source terms
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CVSS 4.0 · 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

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Sources read 7 Nov 17:14 UTC · 275 of 275 readable · 274 fully read · documentation 469/469 current