Missing initialization of resource in Eclipse OpenJ9
Priority HIGH 68CWE-909Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
In Eclipse Openj9 to version 0.25.0, usage of the jdk.internal.reflect.ConstantPool API causes the JVM in some cases to pre-resolve certain constant pool entries. This allows a user to call static methods or access static members without running the class initialization method, and may allow a user to observe uninitialized values.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01126 66th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Eclipse Foundation | Eclipse OpenJ9 | up to 0.25.0 | — | No fix listed | CNA |
- Eclipse OpenJ9 VendorEclipse Foundation Affected up to 0.25.0 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:eclipse:openj9:*:*:*:*:*:*:*:* | up to 0.25.0 | Vulnerable | Eclipse Foundation |
- cpe:2.3:a:eclipse:openj9:*:*:*:*:*:*:*:* Versions up to 0.25.0 Vulnerable ·Eclipse Foundation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-28167
- 2026-10-03 Alias added: GHSA-wmhf-m2r4-mcrp
References
More Eclipse Foundation Openj9 vulnerabilities
- TI-2026-06062 Out-of-bounds read in Eclipse OpenJ9 CVSS 4.0HIGH 8.7
- TI-2018-09008 Improper input validation in Eclipse OpenJ9 CVSS 3.0CRITICAL 9.8
- TI-2018-09006 Improper input validation in Eclipse OpenJ9 CVSS 3.0CRITICAL 9.8
- TI-2021-17899 In Eclipse Openj9 before version 0.29.0, the JVM does not throw IllegalAccessError for… CVSS 3.1CRITICAL 9.8
- TI-2019-08829 Out-of-bounds write in Eclipse OpenJ9 CVSS 3.0CRITICAL 9.8
- TI-2020-16547 Stack-based buffer overflow in Eclipse OpenJ9 CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-28167 · CVE Program
- CVE-2021-28167 · NVD
- FIRST EPSS
- GHSA-wmhf-m2r4-mcrp · GitHub Advisory Database · CC BY 4.0
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