Description
Improper Access Control in Adminer versions 1.12.0 to 4.6.2 (fixed in version 4.6.3) allows an attacker to achieve Arbitrary File Read on the remote server by requesting the Adminer to connect to a remote MySQL database.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | adminer | 4.6.3-1 | — |
| Debian 13 | adminer | 4.6.3-1 | — |
| Debian 12 | adminer | 4.6.3-1 | — |
| Debian 9 | adminer | 4.2.5-3+deb9u3 | DLA-3002-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | adminer | No fix yet | — |
| Ubuntu 26.04 LTS | adminer | No fix yet | — |
| Ubuntu 25.10 | adminer | No fix yet | — |
| Ubuntu 24.04 LTS | adminer | No fix yet | — |
| Ubuntu 22.04 LTS | adminer | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | adminer | No fix yet | — |
| Ubuntu Pro 18.04 LTS | adminer | No fix yet | — |
| Ubuntu Pro 16.04 LTS | adminer | No fix yet | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 3 repositories
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p0dalirius/CVE-2021-43008-AdminerRead ★ 85 · Dec 13, 2021
Exploit tool for CVE-2021-43008 Adminer 1.0 up to 4.6.2 Arbitrary File Read vulnerability
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Bamolitho/adminer_CVE-2021-43008 ★ 0 · Nov 27, 2025
Environnement de démonstration pour la vulnérabilité CVE-2021-43008 d’Adminer : observer l’impact réel et tester des mesures de mitigation.
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DaturaSaturated/Adminer-CVE-2021-43008 ★ 0 · Nov 19, 2025
Adminer CVE-2021-43008 PoC
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | vrana/adminer | >= 1.12.0, < 4.6.3 | 4.6.3 | GHSA-rxfq-3vpc-vv72 |
Advisories 2
- DLA-3002-1 adminer - security update Debian Security (DSA / DLA) · Mar 9, 2026
- ICSA-22-130-01 Adminer in Industrial Products CISA ICS & IT advisories · May 10, 2022