CVE catalog

CVE-2026-8484

Severity: Medium · CVSS 5CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Published: Jun 16, 2026, 10:32:14 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.14% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	jansi	sid	`2.4.3-1`	vulnerable
Debian	jansi	forky	`2.4.3-1`	vulnerable
Debian	jansi	trixie	`2.4.1-2`	vulnerable
Debian	jansi	bookworm	`2.4.0-2`	vulnerable
Debian	jansi1	sid	`1.18-4`	not affected
Debian	jansi1	forky	`1.18-4`	not affected
Debian	jansi1	trixie	`1.18-3.1`	not affected
Debian	jansi1	bookworm	`1.18-3`	not affected
Debian	jansi-native	sid	`1.8-2`	vulnerable
Debian	jansi-native	forky	`1.8-2`	vulnerable
Debian	jansi-native	trixie	`1.8-2`	vulnerable
Debian	jansi-native	bookworm	`1.8-1`	vulnerable
Cpe	jansi	Not reported	Not reported	vulnerable
Cpe	jansi-native	Not reported	Not reported	vulnerable
Cpe	jansi1	Not reported	Not reported	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	jansi	source	sid	`(unfixed)`	not yet assigned	Not reported	[1142997]
Debian	jansi	source	forky	`(unfixed)`	not yet assigned	Not reported	[1142997]
Debian	jansi	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1142997]
Debian	jansi	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1142997]
Debian	jansi1	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	jansi1	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	jansi1	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	jansi1	source	bookworm	`Not affected`	unimportant	Not reported	Not reported
Debian	jansi-native	source	sid	`(unfixed)`	not yet assigned	Not reported	[1142998]
Debian	jansi-native	source	forky	`(unfixed)`	not yet assigned	Not reported	[1142998]
Debian	jansi-native	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1142998]
Debian	jansi-native	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1142998]

[Debian bug #1142997][Debian bug #1142998]

Notes

[trixie] jansi: Minor issue [bookworm] jansi: Minor issue [trixie] jansi-native: Minor issue [bookworm] jansi-native: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libjansi-java]Affected
Source package: [jansi]
Details (2)
- 2.4.0-2 · all · bookworm
  Affected
  nvd · jansi · debian · bookworm; nvd · jansi · debian · 12
- 2.4.0-2 · all · bookworm
  Affected
  nvd · jansi · debian · bookworm; nvd · jansi · debian · 12
[libjansi-native-java]Affected
Source package: [jansi-native]
Details (2)
- 1.8-1 · all · bookworm
  Affected
  nvd · jansi-native · debian · bookworm; nvd · jansi-native · debian · 12
- 1.8-1 · all · bookworm
  Affected
  nvd · jansi-native · debian · bookworm; nvd · jansi-native · debian · 12
[libjansi1-java]Not affected
Source package: [jansi1]
Details (2)
- 1.18-3 · all · bookworm
  Not affected
  nvd · jansi1 · debian · bookworm
- 1.18-3 · all · bookworm
  Not affected
  nvd · jansi1 · debian · bookworm

[Debian 13 (Trixie)]

[libjansi-java]Affected
Source package: [jansi]
Details (2)
- 2.4.1-2 · all · trixie
  Affected
  nvd · jansi · debian · 13
- 2.4.1-2 · all · trixie
  Affected
  nvd · jansi · debian · 13
[libjansi-native-java]Affected
Source package: [jansi-native]
Details (2)
- 1.8-2 · all · trixie
  Affected
  nvd · jansi-native · debian · 13
- 1.8-2 · all · trixie
  Affected
  nvd · jansi-native · debian · 13

Observed: Oct 23, 2026, 9:45:59 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]