Description
The get_group_tree function in lib/Munin/Master/HTMLConfig.pm in Munin before 2.0.18 allows remote nodes to cause a denial of service (infinite loop and memory consumption in the munin-html process) via crafted multigraph data.
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 | munin | 2.0.18-1 | — |
| Debian 13 | munin | 2.0.18-1 | — |
| Debian 12 | munin | 2.0.18-1 | — |
| Debian 7 | munin | 2.0.6-4+deb7u2 | DSA-2815-1 |
| Debian 6.0 | munin | 1.4.5-3+deb6u1 | DLA-20-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | munin | 2.0.25-4.10 | openSUSE-SU-2024:10330-1 |
Advisories 3
- DSA-2815-1 munin - denial of service Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-20-1 munin - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10330-1 munin-2.0.25-4.10 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026