Description
Git before 2.14.5, 2.15.x before 2.15.3, 2.16.x before 2.16.5, 2.17.x before 2.17.2, 2.18.x before 2.18.1, and 2.19.x before 2.19.1 allows remote code execution during processing of a recursive "git clone" of a superproject if a .gitmodules file has a URL field beginning with a '-' character.
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 | 1:2.19.1-1 | — |
| Debian 13 | git | 1:2.19.1-1 | — |
| Debian 12 | git | 1:2.19.1-1 | — |
| Debian 9 | git | 1:2.11.0-3+deb9u4 | DSA-4311-1 |
| Debian 8 | git | 1:2.1.4-2.1+deb8u7 | DLA-1533-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | git | 1:2.17.1-1ubuntu0.3 | USN-3791-1 |
| Ubuntu 16.04 LTS | git | 1:2.7.4-0ubuntu1.5 | USN-3791-1 |
| Ubuntu 14.04 LTS | git | 1:1.9.1-1ubuntu0.9 | USN-3791-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | git +17 | 1.8.3.1-20.el7 | RHSA-2018:3408 |
| RHEL 6 | git +11 | 1.7.1-10.el6_10 | RHSA-2020:0316 |
| RHEL 3 | rh-git29-git +15 | 2.9.3-7.el6 | RHSA-2018:3541 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | git | 2.26.1-3.25.2 | SUSE-SU-2020:1121-1 |
| SLES 15 | git | 2.16.4-3.6.1 | SUSE-SU-2018:3150-1 |
| SLES 15 | libgit2 | 0.26.8-3.8.1 | SUSE-SU-2018:4009-1 |
| SLES 12 SP4 | git | 2.12.3-27.17.2 | SUSE-SU-2018:4088-3 |
| SLES 12 SP3 | git | 2.12.3-27.17.2 | SUSE-SU-2018:4088-1 |
| SLES 12 SP2 | git | 2.12.3-27.17.2 | SUSE-SU-2018:4088-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | git | 2.12.3-27.17.2 | SUSE-SU-2018:4088-1 |
| SLES 12 | git | 2.12.3-27.17.2 | SUSE-SU-2018:4088-1 |
| SLES for SAP 12 SP4 | git | 2.12.3-27.17.2 | SUSE-SU-2018:4088-3 |
| SLES for SAP 12 SP3 | git | 2.12.3-27.17.2 | SUSE-SU-2018:4088-1 |
| SLES for SAP 12 SP2 | git | 2.12.3-27.17.2 | SUSE-SU-2018:4088-1 |
| SLES for SAP 12 SP1 | git | 2.12.3-27.17.2 | SUSE-SU-2018:4088-2 |
| SUSE OpenStack Cloud 8 | git | 2.12.3-27.17.2 | SUSE-SU-2018:4088-1 |
| SUSE OpenStack Cloud 7 | git | 2.12.3-27.17.2 | SUSE-SU-2018:4088-1 |
| SUSE HPE Helion OpenStack 8 | git | 2.12.3-27.17.2 | SUSE-SU-2018:4088-1 |
| SUSE Enterprise Storage 4 | git | 2.12.3-27.17.2 | SUSE-SU-2018:4088-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | git | 2.33.0-1.3 | openSUSE-SU-2024:10786-1 |
| openSUSE Tumbleweed | libgit2 | 1.1.1-1.2 | openSUSE-SU-2024:10943-1 |
| openSUSE Leap 15.1 | git | 2.26.1-lp151.4.9.1 | openSUSE-SU-2020:0598-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | git | 2.19.1-r0 | — |
| Alpine v3.23 | git | 2.19.1-r0 | — |
| Alpine v3.22 | git | 2.19.1-r0 | — |
| Alpine v3.21 | git | 2.19.1-r0 | — |
| Alpine v3.20 | git | 2.19.1-r0 | — |
Show 15 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | git | 2.19.1-r0 | — |
| Alpine v3.18 | git | 2.19.1-r0 | — |
| Alpine v3.17 | git | 2.19.1-r0 | — |
| Alpine v3.16 | git | 2.19.1-r0 | — |
| Alpine v3.15 | git | 2.19.1-r0 | — |
| Alpine v3.14 | git | 2.19.1-r0 | — |
| Alpine v3.13 | git | 2.19.1-r0 | — |
| Alpine v3.12 | git | 2.19.1-r0 | — |
| Alpine v3.11 | git | 2.19.1-r0 | — |
| Alpine v3.10 | git | 2.19.1-r0 | — |
| Alpine v3.9 | git | 2.19.1-r0 | — |
| Alpine v3.8 | git | 2.18.1-r0 | — |
| Alpine v3.7 | git | 2.15.3-r0 | — |
| Alpine v3.6 | git | 2.13.7-r1 | — |
| Alpine v3.5 | git | 2.11.3-r2 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | git +14 | 2.14.5-1.amzn2 | ALAS2-2018-1093 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | git +17 | 1.8.3.1-20.el7 | ELSA-2018-3408 |
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.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Metasploit 1 module
-
Malicious Git HTTP Server For CVE-2018-17456
exploit/multi/http/git_submodule_url_exec
Exploit-DB 2
- Git Submodule - Arbitrary Code Execution EDB-45631 · local · Oct 16, 2018
- Git Submodule - Arbitrary Code Execution (PoC) EDB-45548 · local · Oct 5, 2018
GitHub 5 repositories
-
AnonymKing/CVE-2018-17456 ★ 5 · Jun 21, 2019
CVE-2018-17456漏洞复现（PoC+Exp）
-
KKkai0315/CVE-2018-17456 ★ 0 · Jul 22, 2024
a test repository for CVE-2018-17456's PoC
-
799600966/CVE-2018-17456 ★ 0 · Jun 5, 2019
-
matlink/CVE-2018-17456 ★ 0 · Nov 8, 2018
-
shpik-kr/CVE-2018-17456 ★ 0 · Oct 21, 2018
1-day
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 17
- RHSA-2020:0316 Red Hat Security Advisory: git security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2018:3541 Red Hat Security Advisory: rh-git29-git security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2018:3408 Red Hat Security Advisory: git security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DSA-4311-1 git - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1533-1 git - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3791-1 git vulnerability Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2018:3150-1 Security update for git SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:0598-1 Security update for git SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:4088-1 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-2018:4088-2 Security update for git SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:4009-1 Security update for libgit2 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10943-1 libgit2-1_1-1.1.1-1.2 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
- SUSE-SU-2018:4088-3 Security update for git SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2018-3408 Important: git security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 9, 2018
- ALAS2-2018-1093 Important: git security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 25, 2018
References
- 45631 exploit
- 105523 vdb-entry
- 1041811 vdb-entry
- DSA-4311 vendor-advisory
- RHSA-2018:3505 vendor-advisory
- https://github.com/git/git/commit/1a7fd1fb2998002da6e9ff2ee46e1bdd25ee8404
- 45548 exploit
- RHSA-2018:3541 vendor-advisory
- https://github.com/git/git/commit/a124133e1e6ab5c7a9fef6d0e6bcb084e3455b46
- RHSA-2018:3408 vendor-advisory
- https://marc.info/?l=git&m=153875888916397&w=2
- https://www.openwall.com/lists/oss-security/2018/10/06/3
- USN-3791-1 vendor-advisory
- 20190320 March 2019 Sourcetree Advisory - Multiple Remote Code Execution Vulnerabilities mailing-list
- 107511 vdb-entry
- http://packetstormsecurity.com/files/152173/Sourcetree-Git-Arbitrary-Code-Execution-URL-Handling.html
- RHSA-2020:0316 vendor-advisory
- openSUSE-SU-2020:0598 vendor-advisory