CVE-2026-5917
- Source
- https://cve.org/CVERecord?id=CVE-2026-5917
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-5917.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-5917
- Aliases
-
- GHSA-xqj4-2j5v-rr75
- Downstream
- Related
- Published
- 2026-08-11T21:40:29Z
- Modified
- 2026-08-28T11:47:28Z
- Severity
-
- 8.6 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- libgit2 Shell Command Injection via ssh_libssh2 Backend
- 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.
- Database specific
{ "cna_assigner": "VulnCheck", "cwe_ids": [ "CWE-78" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5917.json" }- References
Affected packages
Git / github.com/libgit2/libgit2
Affected ranges
- Type
- GIT
- Repo
- https://github.com/libgit2/libgit2
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "introduced": "0" }, { "fixed": "1.8.7" }, { "introduced": "1.9.0" }, { "fixed": "1.9.7" } ], "source": "AFFECTED_FIELD" }