CVE-2026-8484Heap buffer overflow in Jansi
Updated under an hour ago ()
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It affects FuseSource jansi. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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A heap buffer overflow vulnerability exists in the Jansi JNI "ioctl()" wrapper due to a lack of size verification for the argument array before the system call. This can lead to heap corruption and application crashes (DoS). All versions are believed to be vulnerable. This project is unmaintained at the time of CVE assignment.
- CVSS
- 4.8 MEDIUM (v4.0, CNA)CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-122
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- CERT-PL
- NVD analysis
- Deferred
- Record last updated
- Jun 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
FuseSource jansi fusesource:jansi (from the name) | through 2.4.3 | CNA record |
References
- https://cert.pl/en/posts/2026/06/CVE-2026-8484third-party-advisory
- https://github.com/fusesource/jansi/tree/masterproduct
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.