Vulnerability in Jansi JNI "ioctl()" wrapper (CVE-2026-8484)
Summary
Vulnerability in Jansi JNI "ioctl()" wrapper (CVE-2026-8484). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
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.
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-8484 has been found in Jansi JNI "ioctl()" wrapper.
Risk of unauthorized operations or information disclosure.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Jansi JNI "ioctl()" wrapper CVE-2026-8484" on the vendor's site.
CVE-2026-8484 (Jansi JNI "ioctl()" wrapper) — CWE-122
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-122) exists in Jansi JNI "ioctl()" wrapper.
Check the vendor advisory for the affected versions of Jansi JNI "ioctl()" wrapper.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Jansi JNI "ioctl()" wrapper を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2026-8484 jansi
- Ubuntu UBUNTU-CVE-2026-8484 jansi
References
- advisory nvd.nist.gov
- advisory cert.pl
- advisory github.com
- package github.com
- web github.com
- web github.com
- web repo.maven.apache.org