Description
An issue in htop-dev htop v.2.20 allows a local attacker to cause an out-of-bounds access in the Header_populateFromSettings function.
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | htop | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | htop | 3.5.3-1.1 | openSUSE-SU-2026:11531-1 |
| openSUSE Leap 16.0 | htop | 3.5.3-bp160.1.1 | openSUSE-SU-2026:21585-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | htop | 3.5.3-r0 | — |
| Alpine v3.23 | htop | 3.4.1-r2 | — |
| Alpine v3.22 | htop | 3.4.1-r1 | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | htop | No fix yet | — |
Advisories 2
- openSUSE-SU-2026:21585-1 Security update for htop SUSE / openSUSE Security Updates · Aug 18, 2026
- openSUSE-SU-2026:11531-1 htop-3.5.3-1.1 on GA media SUSE / openSUSE Security Updates · Aug 18, 2026