ALAS2-2026-4109

Amazon Linux 2 (EOS) Security Advisory: ALAS2-2026-4109
Advisory Released Date: 2026-11-12
Advisory Updated Date: 2026-11-12
Severity: Important
Issue Overview:

Size calculations for very large merge results can overflow, leading to an undersized buffer and heap corruption. (CVE-2026-105437)

Recursive clones can lead to remote code execution through unsafe handling of submodule-related repository metadata. (CVE-2026-111760)

A server can advertise a malformed unborn HEAD, causing unintended file writes during subsequent ref updates with the files ref backend. (CVE-2026-113408)

Certain fast-import features can access arbitrary paths and are now disallowed by default. (CVE-2026-114466)

Removing more than two GPG signatures from commit messages can corrupt stack memory, potentially causing denial of service during merges. (CVE-2026-114467)

Binary-patch size validation can be bypassed because it checks the encoded input rather than the inflated result, potentially causing an out-of-bounds read and crash. (CVE-2026-114469)


Affected Packages:

git


Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.


Issue Correction:
Run yum update git or yum update --advisory ALAS2-2026-4109 to update your system.

New Packages:
aarch64:
    git-2.47.3-1.amzn2.0.2.aarch64
    git-core-2.47.3-1.amzn2.0.2.aarch64
    git-credential-libsecret-2.47.3-1.amzn2.0.2.aarch64
    git-daemon-2.47.3-1.amzn2.0.2.aarch64
    git-debuginfo-2.47.3-1.amzn2.0.2.aarch64

i686:
    git-2.47.3-1.amzn2.0.2.i686
    git-core-2.47.3-1.amzn2.0.2.i686
    git-credential-libsecret-2.47.3-1.amzn2.0.2.i686
    git-daemon-2.47.3-1.amzn2.0.2.i686
    git-debuginfo-2.47.3-1.amzn2.0.2.i686

noarch:
    git-all-2.47.3-1.amzn2.0.2.noarch
    git-core-doc-2.47.3-1.amzn2.0.2.noarch
    git-cvs-2.47.3-1.amzn2.0.2.noarch
    git-email-2.47.3-1.amzn2.0.2.noarch
    gitk-2.47.3-1.amzn2.0.2.noarch
    gitweb-2.47.3-1.amzn2.0.2.noarch
    git-gui-2.47.3-1.amzn2.0.2.noarch
    git-instaweb-2.47.3-1.amzn2.0.2.noarch
    git-p4-2.47.3-1.amzn2.0.2.noarch
    perl-Git-2.47.3-1.amzn2.0.2.noarch
    perl-Git-SVN-2.47.3-1.amzn2.0.2.noarch
    git-subtree-2.47.3-1.amzn2.0.2.noarch
    git-svn-2.47.3-1.amzn2.0.2.noarch

src:
    git-2.47.3-1.amzn2.0.2.src

x86_64:
    git-2.47.3-1.amzn2.0.2.x86_64
    git-core-2.47.3-1.amzn2.0.2.x86_64
    git-credential-libsecret-2.47.3-1.amzn2.0.2.x86_64
    git-daemon-2.47.3-1.amzn2.0.2.x86_64
    git-debuginfo-2.47.3-1.amzn2.0.2.x86_64

Additional References

Red Hat: CVE-2026-105437, CVE-2026-111760, CVE-2026-113408, CVE-2026-114466, CVE-2026-114467, CVE-2026-114469

Mitre: CVE-2026-105437, CVE-2026-111760, CVE-2026-113408, CVE-2026-114466, CVE-2026-114467, CVE-2026-114469