CVE-2026-8484: CWE-122 Heap-based Buffer Overflow in FuseSource jansi
CVE-2026-8484 is a heap-based buffer overflow vulnerability in the FuseSource jansi library's JNI ioctl() wrapper. The issue arises from missing size verification on the argument array before making the system call, which can cause heap corruption and application crashes resulting in denial of service. All versions up to and including 2.4.3 are believed to be affected. The project is unmaintained at the time of CVE assignment, and no official patch or fix is currently available.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-8484) in FuseSource jansi involves a heap buffer overflow in the JNI ioctl() wrapper due to lack of size checks on the argument array prior to the system call. This flaw can lead to heap corruption and cause the application to crash, resulting in denial of service. The vulnerability affects all versions up to 2.4.3. The project is unmaintained, and no remediation level or patch has been provided by the vendor. The CVSS 4.0 base score is 4.8, indicating medium severity.
Potential Impact
Successful exploitation can cause heap corruption and application crashes, leading to denial of service conditions. There is no indication of privilege escalation, code execution, or data disclosure. No known exploits are reported in the wild.
Mitigation Recommendations
No official fix or patch is currently available as the project is unmaintained. Users should consider mitigating risk by avoiding use of affected versions (<=2.4.3) or isolating affected components to limit impact. Monitor vendor or community sources for any future updates or forks that may address this issue.
CVE-2026-8484: CWE-122 Heap-based Buffer Overflow in FuseSource jansi
Description
CVE-2026-8484 is a heap-based buffer overflow vulnerability in the FuseSource jansi library's JNI ioctl() wrapper. The issue arises from missing size verification on the argument array before making the system call, which can cause heap corruption and application crashes resulting in denial of service. All versions up to and including 2.4.3 are believed to be affected. The project is unmaintained at the time of CVE assignment, and no official patch or fix is currently available.
CVSS v4.0
Score 4.8medium
Affected software
pkg:maven/FuseSource/org.fusesource.jansi:jansiRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-8484) in FuseSource jansi involves a heap buffer overflow in the JNI ioctl() wrapper due to lack of size checks on the argument array prior to the system call. This flaw can lead to heap corruption and cause the application to crash, resulting in denial of service. The vulnerability affects all versions up to 2.4.3. The project is unmaintained, and no remediation level or patch has been provided by the vendor. The CVSS 4.0 base score is 4.8, indicating medium severity.
Potential Impact
Successful exploitation can cause heap corruption and application crashes, leading to denial of service conditions. There is no indication of privilege escalation, code execution, or data disclosure. No known exploits are reported in the wild.
Mitigation Recommendations
No official fix or patch is currently available as the project is unmaintained. Users should consider mitigating risk by avoiding use of affected versions (<=2.4.3) or isolating affected components to limit impact. Monitor vendor or community sources for any future updates or forks that may address this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- CERT-PL
- Date Reserved
- 2026-05-13T14:47:20.636Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3133ca0b89be68889d5375
Added to database: 6/16/2026, 11:30:18 AM
Last enriched: 6/16/2026, 11:45:25 AM
Last updated: 6/16/2026, 12:40:15 PM
Views: 4
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