Description
The (1) git-remote-ext and (2) unspecified other remote helper programs in Git before 2.3.10, 2.4.x before 2.4.10, 2.5.x before 2.5.4, and 2.6.x before 2.6.1 do not properly restrict the allowed protocols, which might allow remote attackers to execute arbitrary code via a URL in a (a) .gitmodules file or (b) unknown other sources in a submodule.
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 | 1:2.6.1-1 | — |
| Debian 13 | git | 1:2.6.1-1 | — |
| Debian 12 | git | 1:2.6.1-1 | — |
| Debian 8 | git | 1:2.1.4-2.1+deb8u1 | DSA-3435-1 |
| Debian 7 | git | 1:1.7.10.4-1+wheezy2 | DSA-3435-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | git | 1:1.9.1-1ubuntu0.2 | USN-2835-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | git +15 | 1.8.3.1-6.el7 | RHSA-2015:2561 |
| RHEL 2 | git19-git +12 | 1.9.4-3.el6.1 | RHSA-2015:2515 |
| RHEL 2 | git19-git-hg +1 | 1.9.4-3.el7.1 | RHSA-2015:2515 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | git | 1.8.5.6-15.1 | SUSE-SU-2015:2325-1 |
| SLES 12 | git | 1.8.5.6-15.1 | SUSE-SU-2015:2025-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | git | 1.8.5.6-15.1 | SUSE-SU-2015:2325-1 |
| SLES for SAP 12 | git | 1.8.5.6-15.1 | SUSE-SU-2015:2025-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | mercurial | 4.0-1.1 | openSUSE-SU-2024:10070-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | git +15 | 1.8.3.1-6.el7 | ELSA-2015-2561 |
| Oracle Linux 7 | git19-git +14 | 1.9.4-3.el7.1 | ELSA-2015-2515 |
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.
GitHub 1 repository
-
avuserow/bug-free-chainsaw ★ 2 · Dec 16, 2015
CVE-2015-7545 proof of concept
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 9
- RHSA-2015:2561 Red Hat Security Advisory: git security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2015:2515 Red Hat Security Advisory: git19-git security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DSA-3435-1 git - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-2835-1 git vulnerability Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2015:2025-1 Recommended update for git SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10070-1 mercurial-4.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:2325-1 Recommended update for git SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2015-2515 Moderate: git19-git security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Feb 4, 2016
- ELSA-2015-2561 Moderate: git security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Dec 8, 2015
References
- RHSA-2015:2515 vendor-advisory
- openSUSE-SU-2015:1968 vendor-advisory
- GLSA-201605-01 vendor-advisory
- [oss-security] 20151208 CVE for git issue - please use CVE-2015-7545 mailing-list
- [linux-kernel] 20151005 [ANNOUNCE] Git v2.6.1, v2.5.4, v2.4.10 and v2.3.10 mailing-list
- https://github.com/git/git/blob/master/Documentation/RelNotes/2.6.1.txt
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- 1034501 vdb-entry
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1269794
- https://github.com/git/git/blob/master/Documentation/RelNotes/2.3.10.txt
- USN-2835-1 vendor-advisory
- https://kernel.googlesource.com/pub/scm/git/git/+/33cfccbbf35a56e190b79bdec5c85457c952a021
- https://github.com/git/git/blob/master/Documentation/RelNotes/2.5.4.txt
- [oss-security] 20151211 Re: CVE for git issue - please use CVE-2015-7545 mailing-list
- 78711 vdb-entry
- [oss-security] 20151209 Re: CVE for git issue - please use CVE-2015-7545 mailing-list
- https://github.com/git/git/blob/master/Documentation/RelNotes/2.4.10.txt
- SSA:2016-123-01 vendor-advisory
- DSA-3435 vendor-advisory