CVE-2026-5704
Publication date 6 April 2026
Last updated 27 June 2026
Ubuntu priority
Description
A flaw was found in tar. A remote attacker could exploit this vulnerability by crafting a malicious archive, leading to hidden file injection with fully attacker-controlled content. This bypasses pre-extraction inspection mechanisms, potentially allowing an attacker to introduce malicious files onto a system without detection.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| tar | 26.04 LTS resolute |
Fixed 1.35+dfsg-4ubuntu0.1
|
| 25.10 questing |
Needs evaluation
|
|
| 24.04 LTS noble |
Fixed 1.35+dfsg-3ubuntu0.1
|
|
| 22.04 LTS jammy |
Fixed 1.34+dfsg-1ubuntu0.1.22.04.3
|
|
| 20.04 LTS focal |
Fixed 1.30+dfsg-7ubuntu0.20.04.4+esm1
|
|
| 18.04 LTS bionic |
Fixed 1.29b-2ubuntu0.4+esm2
|
|
| 16.04 LTS xenial |
Fixed 1.28-2.1ubuntu0.2+esm4
|
|
| 14.04 LTS trusty |
Fixed 1.27.1-1ubuntu0.1+esm5
|
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CVSS version: CVSS v3.0
Base score
5.0 · Medium
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
References
Related Ubuntu Security Notices (USN)
- USN-8477-1
- tar vulnerability
- 25 June 2026