VDB
ALPINE-CVE-2021-45444
ALPINE-CVE-2021-45444
PUBLISHED
CVSS 7.800000190734863 HIGH
In zsh before 5.8.1, an attacker can achieve code execution if they control a command output inside the prompt, as demonstrated by a %F argument. This occurs because of recursive PROMPT_SUBST expansion.
Risk Scores
CVSS v3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.17 | zsh | 5.0.2-r2, 0, 4.3.11-r1 |
| Alpine:v3.13 | zsh | 4.3.15-r0, 5.8-r1, 5.8-r0 |
| Alpine:v3.23 | zsh | 5.4.1-r0, 0, 4.3.11-r1 |
| Alpine:v3.20 | zsh | 0, 5.2-r0, 5.2-r1 |
| Alpine:v3.22 | zsh | 5.0.2-r2, 5.0.6-r0, 5.0.5-r0 |
| Alpine:v3.18 | zsh | 5.1-r0, 5.0.2-r1, 5.0.2-r2 |
| Alpine:v3.21 | zsh | 5.0.0-r0, 5.8-r4, 5.8-r3 |
| Alpine:v3.19 | zsh | 4.3.11-r1, 5.4.2-r1, 5.6.2-r0 |
| Alpine:v3.14 | zsh | 5.0.6-r0, 5.3.1-r0, 4.3.11-r1 |
| Alpine:v3.16 | zsh | 5.0.2-r1, 5.0.5-r0, 5.0.6-r0 |
| Alpine:v3.15 | zsh | 5.0.8-r0, 5.8-r3, 5.8-r2 |
| Alpine:v3.12 | zsh | 0, 4.3.12-r0, 4.3.15-r0 |
Timeline
- Feb 14, 2022 CVE Published
- Dec 3, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch