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[GHSA-fh45-7f3j-r575] A heap buffer overflow vulnerability exists in the Jansi... - #10194
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October 6, 2026 17:53
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This advisory currently lists no affected packages, so tools that match on GitHub advisories (including Dependabot) never flag Jansi. CERT Polska's advisory (https://cert.pl/en/posts/2026/06/CVE-2026-8484) states the issue affects Jansi through 2.4.3. That is the Maven artifact org.fusesource.jansi:jansi, and 2.4.3 is its last release (the project was deprecated in fusesource/jansi#312), so there is no patched version. The vulnerable code is the ioctl__IJ_3I JNI wrapper in src/main/native/jansi.c, unchanged in the 2.4.x releases.
Affected ranges were confirmed by inspecting the published jars: the ioctl(int, long, int[]) overload first appears in jansi-native 1.6 (bundled from jansi 1.12), and the Windows DLLs do not contain the wrapper.