VDB
DEBIAN-CVE-2026-4424
DEBIAN-CVE-2026-4424
PUBLISHED
CVSS 7.5 HIGH
A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size after transitions between compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive, leading to the disclosure of sensitive heap memory information without requiring authentication or user interaction.
Risk Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | libarchive | 3.8.6-1, 3.8.5-1, 3.8.4-1 |
| Debian:11 | libarchive | 3.7.2-2.1, 3.7.4-3, 3.7.4-4 |
| Debian:12 | libarchive | 3.6.2-1, 3.8.6-1, 3.8.7-1 |
| Debian:13 | libarchive | 0, 0, 3.8.7-1 |
Timeline
- Mar 19, 2026 CVE Published
- May 16, 2026 CVE Updated