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Extend actions/unpinned-tag to analyze composite action metadata (action.yml / action.yaml) #21692

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Extend actions/unpinned-tag to analyze composite action metadata (action.yml / action.yaml) #21692

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386872c
Initial plan
Copilot Apr 10, 2026
ec12035
Extend unpinned-tag query to scan composite action metadata
Copilot Apr 10, 2026
e598c56
update and fix tests
oscarsj Apr 20, 2026
ca68274
Add changelog
oscarsj Apr 20, 2026
b204603
Update UnpinnedActionsTag query metadata scope
Copilot Apr 20, 2026
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25 changes: 18 additions & 7 deletions actions/ql/src/Security/CWE-829/UnpinnedActionsTag.ql
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Original file line number Diff line number Diff line change
Expand Up @@ -31,15 +31,26 @@
bindingset[nwo]
private predicate isContainerImage(string nwo) { nwo.regexpMatch("^docker://.+") }

from UsesStep uses, string nwo, string version, Workflow workflow, string name
private predicate getStepContainerName(UsesStep uses, string name) {

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Code scanning / CodeQL

Predicates starting with "get" or "as" should return a value Warning

This predicate starts with 'get' but does not return a value.
exists(Workflow workflow |
uses.getEnclosingWorkflow() = workflow and
(
workflow.getName() = name
Comment on lines +34 to +38
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Copilot AI Apr 20, 2026

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The query’s metadata comment at the top of the file still describes this as a workflow-only check (for example, the @name says “in workflow”), but the query now also analyzes composite action metadata. Please update the header comment to reflect the expanded scope so the rendered query docs aren’t misleading.

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Copilot AI Apr 20, 2026

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Updated in commit b204603: the query header @name now reflects the expanded scope (workflow or composite action).

or
not exists(workflow.getName()) and workflow.getLocation().getFile().getBaseName() = name
)
)
or
exists(CompositeAction action |
uses.getEnclosingCompositeAction() = action and
name = action.getLocation().getFile().getBaseName()
)
}

from UsesStep uses, string nwo, string version, string name
where
uses.getCallee() = nwo and
uses.getEnclosingWorkflow() = workflow and
(
workflow.getName() = name
or
not exists(workflow.getName()) and workflow.getLocation().getFile().getBaseName() = name
) and
getStepContainerName(uses, name) and
uses.getVersion() = version and
not isTrustedOwner(nwo) and
not (if isContainerImage(nwo) then isPinnedContainer(version) else isPinnedCommit(version)) and
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6 changes: 6 additions & 0 deletions actions/ql/test/query-tests/Security/CWE-829/.github/actions/unpinned-tag/action.yml
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@@ -0,0 +1,6 @@
name: Composite unpinned tag test
runs:
using: "composite"
steps:
- uses: foo/bar@v2
- uses: foo/bar@25b062c917b0c75f8b47d8469aff6c94ffd89abb
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Test coverage for the new composite-action support only exercises action.yml. Since the intended scope is action.yml and action.yaml, add a second composite-action fixture using the .yaml extension with an unpinned uses: ref (and update the expected results) to ensure both metadata filenames are handled.

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1 change: 1 addition & 0 deletions actions/ql/test/query-tests/Security/CWE-829/UnpinnedActionsTag.expected
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@@ -1,3 +1,4 @@
| .github/actions/unpinned-tag/action.yml:5:13:5:22 | foo/bar@v2 | Unpinned 3rd party Action 'action.yml' step $@ uses 'foo/bar' with ref 'v2', not a pinned commit hash | .github/actions/unpinned-tag/action.yml:5:7:6:60 | Uses Step | Uses Step |
| .github/workflows/actor_trusted_checkout.yml:19:13:19:36 | completely/fakeaction@v2 | Unpinned 3rd party Action 'actor_trusted_checkout.yml' step $@ uses 'completely/fakeaction' with ref 'v2', not a pinned commit hash | .github/workflows/actor_trusted_checkout.yml:19:7:23:4 | Uses Step | Uses Step |
| .github/workflows/actor_trusted_checkout.yml:23:13:23:37 | fakerepo/comment-on-pr@v1 | Unpinned 3rd party Action 'actor_trusted_checkout.yml' step $@ uses 'fakerepo/comment-on-pr' with ref 'v1', not a pinned commit hash | .github/workflows/actor_trusted_checkout.yml:23:7:26:21 | Uses Step | Uses Step |
| .github/workflows/artifactpoisoning21.yml:13:15:13:49 | dawidd6/action-download-artifact@v2 | Unpinned 3rd party Action 'Pull Request Open' step $@ uses 'dawidd6/action-download-artifact' with ref 'v2', not a pinned commit hash | .github/workflows/artifactpoisoning21.yml:13:9:18:6 | Uses Step | Uses Step |
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