OESA-2026-4623

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-4623
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-4623.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2026-4623
Upstream
Published
2026-10-29T09:03:42Z
Modified
2026-10-29T09:15:43Z
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
libgit2 security update
Details

libgit2 is a portable, pure C implementation of the Git core methods provided as a re-entrant linkable library with a solid API, allowing you to write native speed custom Git applications in any language which supports C bindings.

Security Fix(es):

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.(CVE-2026-5917)

Database specific 
{
    "severity":  "High"
}
References

Affected packages

openEuler:24.03-LTS-SP4 / libgit2

Package

Name
libgit2
Purl
pkg:rpm/openEuler/libgit2&distro=openEuler-24.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.7.2-3.oe2403sp4

Ecosystem specific 

{
    "aarch64":  [
        "libgit2-1.7.2-3.oe2403sp4.aarch64.rpm",
        "libgit2-debuginfo-1.7.2-3.oe2403sp4.aarch64.rpm",
        "libgit2-debugsource-1.7.2-3.oe2403sp4.aarch64.rpm",
        "libgit2-devel-1.7.2-3.oe2403sp4.aarch64.rpm"
    ],
    "src":  [
        "libgit2-1.7.2-3.oe2403sp4.src.rpm"
    ],
    "x86_64":  [
        "libgit2-1.7.2-3.oe2403sp4.x86_64.rpm",
        "libgit2-debuginfo-1.7.2-3.oe2403sp4.x86_64.rpm",
        "libgit2-debugsource-1.7.2-3.oe2403sp4.x86_64.rpm",
        "libgit2-devel-1.7.2-3.oe2403sp4.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4623.json"