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fix: remove sensitive property values from debug log output - #403
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gnodet merged 1 commit intoSep 26, 2026
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The debug dump in BaseFilter.getDefaultFilterWrappers() was logging every key=value pair from the full filterProperties map, which includes all system properties and environment variables exposed via the env.* namespace (AWS_SECRET_ACCESS_KEY, GITHUB_TOKEN, DATABASE_URL, etc.). Replace the value dump with a count-only message that retains diagnostic value (how many properties are in scope) without leaking credentials. Fixes: apache/maven-resources-plugin#133
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Clean security fix. Replaces a debug block that dumped all filterProperties key=value pairs (including env.* — secrets, tokens, PII) with a safe count-only message. The isDebugEnabled() guard is retained, SLF4J parameterized logging is used correctly, and the TreeSet import cleanup is consistent. Backport PR #404 covers the 3.x branch.
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…from debug log output (MRESOURCES-290) - Replace full key=value property dump with count-only message in BaseFilter.getDefaultFilterWrappers() - Prevents env.* namespace from leaking in mvn -X debug output on 3.x branch - Backport of #403 - Fixes apache/maven-resources-plugin#133 (MRESOURCES-290)
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Fixes apache/maven-resources-plugin#133 (MRESOURCES-290).
Problem
BaseFilter.getDefaultFilterWrappers()contained a debug block that dumped every key=value pair fromfilterPropertieswhenisDebugEnabled()(i.e.mvn -X). ThefilterPropertiesmap is built from system properties and session properties, which includes the fullenv.*namespace — meaning every environment variable is logged in plain text:This silently leaks credentials and PII to anyone who can read the build log — a common scenario in CI systems where
-Xis enabled to debug a resource filtering issue.Fix
Replace the full value dump with a count-only message that retains diagnostic value without exposing secrets:
This tells you whether properties were loaded (useful to detect empty/misconfigured filter sets) without revealing any values.
Note: the 3.x branch has the same issue and will be backported separately.