AWS SDK for Rust will log AWS credentials when TRACE-level logging is enabled for request sending

The `aws_sigv4::SigningParams` struct had a derived `Debug` implementation. When debug-formatted, it would include a user's AWS access key, AWS secret key, and security token in plaintext. When TRACE-level logging is enabled for an SDK, `SigningParams` is printed, thereby revealing those credentials to anyone with access to logs. ### Impact All users of the AWS SDK for Rust who enabled TRACE-level logging, either globally (e.g. `RUST_LOG=trace`), or for the `aws-sigv4` crate specifically. ### Patches - Versions >= `0.55.1` - `0.54.2` - `0.53.2` - `0.52.1` - `0.51.1` - `0.50.1` - `0.49.1` - `0.48.1` - `0.47.1` - `0.46.1` - `0.15.1` - `0.14.1` - `0.13.1` - `0.12.1` - `0.11.1` - `0.10.2` - `0.9.1` - `0.8.1` - `0.7.1` - `0.6.1` - `0.5.3` - `0.3.1` - `0.2.1` ### Workarounds Disable TRACE-level logging for AWS Rust SDK crates.

Source published

26 Apr 2023 16:01:10 UTC

Source modified

6 Apr 2026 17:38:55 UTC

Observed here

24 Oct 2026 13:19:54 UTC

Source terms

GitHub Advisory Database · CC-BY-4.0

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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