diff --git a/dev-python/cfn-lint/Manifest b/dev-python/cfn-lint/Manifest
index abc548bd67528..d8c03cf26b55b 100644
--- a/dev-python/cfn-lint/Manifest
+++ b/dev-python/cfn-lint/Manifest
@@ -2,3 +2,4 @@ DIST cfn_lint-1.39.1.tar.gz 3250565 BLAKE2B 8cae83fc090a5208e24d85270085fe7ab271
 DIST cfn_lint-1.40.0.tar.gz 3359732 BLAKE2B adcefc474df4c05558acf69892daf8335cca39b979221cdec82de9e7b58409b1c9e980bfd1becb65b3a84fd41933ec5ece2199c698b3987499694758a9289a82 SHA512 0da2b29ab549c4422b5c2cc0c51d54308f9dd7990061e39654fa3a08c75c63e44e36b133e292757f1bb13121003791cb33409c404ec201da8718421da89a0d4f
 DIST cfn_lint-1.40.1.tar.gz 3321409 BLAKE2B 1e220b53f2bebc78dafb5b1edc84a078e59e33391f8534a8fa6e9d17c41dbc14ef10db9554cc743aca68354f2f09d16a11753255a0250cf8c85d0ff21b860acc SHA512 b1e74debb054ffdd149af632fc776bb912235a0d95681f878144e51b35732f4debf6193db1c7e9c5539cd899aac0cdd312da21ad9cf75e471cffadb9609ca307
 DIST cfn_lint-1.40.2.tar.gz 3352309 BLAKE2B ae10b4cf4039d3da96a37250d74d03284989c9439f7aee483c2aff8c233250dc1f60680fa6130943b1b684f858edf1995004baec5fd577deccb04194558ca516 SHA512 118843ae523a795d59587edda4a5bbbfed78e1617da9547fef0f6e1508d5575952ae4217a63e97d9c6f56221f3de2f64d251ff4b7e1728b168a760af4cfe39f2
+DIST cfn_lint-1.40.3.tar.gz 3426494 BLAKE2B 7545e83cdc1cc59a6990fa16839d449db2c6c8077a35f24c1d43bfdeec46b5689fd99f2da4251a211e95409d0d9c37325ebafb7ec87d7f975453a3ce7270c3d2 SHA512 683a9a17b668175b75858afafbb301ba0556ff6941698681eff1d1c7bad9787a8a7ecba3521c4554f2267c07f7f9ad6b7a1848feedcd0d0a5a24180053f62692
diff --git a/dev-python/cfn-lint/cfn-lint-1.40.3.ebuild b/dev-python/cfn-lint/cfn-lint-1.40.3.ebuild
new file mode 100644
index 0000000000000..ffc56bfdf15f7
--- /dev/null
+++ b/dev-python/cfn-lint/cfn-lint-1.40.3.ebuild
@@ -0,0 +1,61 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{11..13} )
+
+inherit distutils-r1 pypi
+
+DESCRIPTION="CloudFormation Linter"
+HOMEPAGE="
+	https://github.com/aws-cloudformation/cfn-lint/
+	https://pypi.org/project/cfn-lint/
+"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~riscv ~x86"
+
+RDEPEND="
+	>=dev-python/aws-sam-translator-1.97.0[${PYTHON_USEDEP}]
+	dev-python/jsonpatch[${PYTHON_USEDEP}]
+	>=dev-python/jschema-to-python-1.2.3[${PYTHON_USEDEP}]
+	<dev-python/jsonschema-5[${PYTHON_USEDEP}]
+	>=dev-python/jsonschema-3.0[${PYTHON_USEDEP}]
+	dev-python/junit-xml[${PYTHON_USEDEP}]
+	<dev-python/networkx-4[${PYTHON_USEDEP}]
+	>=dev-python/pyyaml-5.4[${PYTHON_USEDEP}]
+	>=dev-python/regex-2021.7.1[${PYTHON_USEDEP}]
+	>=dev-python/sarif-om-1.0.4[${PYTHON_USEDEP}]
+	>=dev-python/sympy-1.0.0[${PYTHON_USEDEP}]
+"
+BDEPEND="
+	>=dev-python/setuptools-77.0.3[${PYTHON_USEDEP}]
+	test? (
+		dev-python/defusedxml[${PYTHON_USEDEP}]
+	)
+"
+
+EPYTEST_PLUGINS=()
+distutils_enable_tests pytest
+
+python_test() {
+	local EPYTEST_DESELECT=(
+		# different line wrapping somehow
+		test/unit/module/template/test_template.py::TestTemplate::test_build_graph
+		# requires git repo
+		test/unit/module/maintenance/test_update_documentation.py::TestUpdateDocumentation::test_update_docs
+		# TODO: suddenly started failing in older versions too
+		# https://github.com/aws-cloudformation/cfn-lint/issues/4207
+		test/integration/test_good_templates.py
+		test/unit/module/override/test_exclude.py::TestExclude::test_success_run
+		test/unit/module/test_api.py::TestLintFile::test_good_template
+		test/unit/module/test_rules_collections.py::TestRulesCollection::test_success_run
+	)
+
+	# from tox.ini
+	local -x AWS_DEFAULT_REGION=us-east-1
+	epytest
+}