What is CVE-2026-39243?

CVE-2026-39243 is a medium-severity vulnerability in N/a, classified under Improper Link Resolution Before File Access. CVSS score: 5.5/10. Published 2026-07-09.

How severe is CVE-2026-39243?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in N/a

CVE-2026-39243

decompress before 4.2.2 allows arbitrary hardlink creation during archive extraction, enabling file read disclosure and file corruption. When processing hardlink entries (type === 'link'), the x.linkname field from the archive is passed di…

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

References

cve@mitre.org
cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2026-39243?: CVE-2026-39243 is a medium-severity vulnerability in N/a, classified under Improper Link Resolution Before File Access. CVSS score: 5.5/10. Published 2026-07-09.
How severe is CVE-2026-39243?: Medium severity. CVSS v3 base score is 5.5 out of 10.