High 8.7Published Oct 21, 2026

CVE-2026-110938JITServer: Multiple Denial of Service vulnerabilities via out-of-bounds heap reads during message and reply parsing

Updated under an hour ago (2026-10-22 06:40 UTC)

Does this affect you?

It affects Eclipse Foundation Eclipse OpenJ9. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.41%, higher than 35% of scored CVEs.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Eclipse Foundation Eclipse OpenJ9

Exploited in the last 30 days

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).

CVSS: 8.7 HIGH (v4.0, CNA)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
Weakness (CWE): CWE-125, CWE-20
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.41% (percentile 35)
Assigned by: eclipse
NVD analysis: Received
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 21, 2026

Affected products

Affected products

Eclipse Foundation Eclipse OpenJ9 eclipse_foundation:eclipse_openj9 (from the name)	from 0.8.0 before 0.63	CNA record

References

https://github.com/eclipse-openj9/openj9/pull/25011
https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/943
https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/944
https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/946
https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/947
https://gitlab.eclipse.org/security/cve-assignment/-/work_items/407

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.