DEBIAN-CVE-2026-5917

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Source
https://security-tracker.debian.org/tracker/CVE-2026-5917
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5917.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-5917
Upstream
Published
2026-08-11T22:17:37Z
Modified
2026-09-14T17:03:22Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

libgit2 versions before 1.8.7 and 1.9.0 before 1.9.7 built with the libssh2 SSH backend (USE_SSH=libssh2) contain a shell command injection vulnerability that allows remote attackers to execute arbitrary commands on an SSH server by supplying a repository path containing unescaped shell metacharacters such as single quotes, semicolons, or pipes. The gen_proto() function in ssh_libssh2.c inserts the repository path directly into a shell command string without escaping special characters before passing it to libssh2_channel_exec(), enabling an attacker to craft a malicious submodule URL in a .gitmodules file that, when processed during a recursive clone, causes the remote server's shell to interpret injected commands under the victim's SSH user account.

References

Affected packages

Debian:12 / libgit2

Package

Name
libgit2
Purl
pkg:deb/debian/libgit2?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.5.1+ds-1
1.5.1+ds-1+deb12u1
1.6.4+ds-1
1.7.1+ds-1
1.7.1+ds-2
1.7.2+ds-1
1.8.1+ds-1
1.8.1+ds-2
1.8.2~rc1+ds-1
1.8.2~rc1+ds-2
1.8.2~rc1+ds2-1
1.8.4+ds-1
1.8.4+ds-2
1.8.4+ds-3~bpo12+1~bin
1.8.4+ds-3~bpo12+1
1.8.4+ds-3
1.9.0+ds-1
1.9.0+ds-2
1.9.1+ds-1
1.9.2+ds-1
1.9.2+ds-2
1.9.2+ds-3
1.9.2+ds-4
1.9.2+ds-5
1.9.2+ds-6
1.9.2+ds-7
1.9.2+ds-8
1.9.2+ds-9
1.9.3+ds-1
1.9.4+ds-1
1.9.6+ds-1
1.9.7+ds-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5917.json"

Debian:13 / libgit2

Package

Name
libgit2
Purl
pkg:deb/debian/libgit2?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.9.0+ds-2+deb13u1

Affected versions

1.*
1.9.0+ds-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5917.json"

Debian:14 / libgit2

Package

Name
libgit2
Purl
pkg:deb/debian/libgit2?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.9.7+ds-1

Affected versions

1.*
1.9.0+ds-2
1.9.1+ds-1
1.9.2+ds-1
1.9.2+ds-2
1.9.2+ds-3
1.9.2+ds-4
1.9.2+ds-5
1.9.2+ds-6
1.9.2+ds-7
1.9.2+ds-8
1.9.2+ds-9
1.9.3+ds-1
1.9.4+ds-1
1.9.6+ds-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5917.json"