Description
Git through 2.14.2 mishandles layers of tree objects, which allows remote attackers to cause a denial of service (memory consumption) via a crafted repository, aka a Git bomb. This can also have an impact of disk consumption; however, an affected process typically would not survive its attempt to build the data structure in memory before writing to disk.
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 | git | 1:2.16.1-1 | — |
| Debian 13 | git | 1:2.16.1-1 | — |
| Debian 12 | git | 1:2.16.1-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | git | 1:2.17.1-1ubuntu0.4 | USN-3829-1 |
| Ubuntu 16.04 LTS | git | 1:2.7.4-0ubuntu1.6 | USN-3829-1 |
| Ubuntu 14.04 LTS | git | 1:1.9.1-1ubuntu0.10 | USN-3829-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | git | 2.26.1-3.25.2 | SUSE-SU-2020:1121-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | git | 2.33.0-1.3 | openSUSE-SU-2024:10786-1 |
| openSUSE Leap 15.1 | git | 2.26.1-lp151.4.9.1 | openSUSE-SU-2020:0598-1 |
Advisories 4
- USN-3829-1 git vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- openSUSE-SU-2020:0598-1 Security update for git SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10786-1 git-2.33.0-1.3 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1121-1 Security update for git SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://github.com/Katee/git-bomb
- https://kate.io/blog/git-bomb/
- USN-3829-1 vendor-advisory
- openSUSE-SU-2020:0598 vendor-advisory