refactor: replace interface{} with any #115
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Signed-off-by: Mark Sagi-Kazar <mark.sagikazar@gmail.com>
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Aug 21, 2025
…RITY] (#904) This PR contains the following updates: | Package | Change | Age | Confidence | |---|---|---|---| | [github.com/go-viper/mapstructure/v2](https://github.com/go-viper/mapstructure) | `v2.3.0` -> `v2.4.0` | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | --- ### go-viper's mapstructure May Leak Sensitive Information in Logs When Processing Malformed Data [GHSA-2464-8j7c-4cjm](GHSA-2464-8j7c-4cjm) <details> <summary>More information</summary> #### Details ##### Summary Use of this library in a security-critical context may result in leaking sensitive information, if used to process sensitive fields. ##### Details OpenBao (and presumably HashiCorp Vault) have surfaced error messages from `mapstructure` as follows: https://github.com/openbao/openbao/blob/98c3a59c040efca724353ca46ca79bd5cdbab920/sdk/framework/field_data.go#L43-L50 ```go _, _, err := d.getPrimitive(field, schema) if err != nil { return fmt.Errorf("error converting input for field %q: %w", field, err) } ``` where this calls `mapstructure.WeakDecode(...)`: https://github.com/openbao/openbao/blob/98c3a59c040efca724353ca46ca79bd5cdbab920/sdk/framework/field_data.go#L181-L193 ```go func (d *FieldData) getPrimitive(k string, schema *FieldSchema) (interface{}, bool, error) { raw, ok := d.Raw[k] if !ok { return nil, false, nil } switch t := schema.Type; t { case TypeBool: var result bool if err := mapstructure.WeakDecode(raw, &result); err != nil { return nil, false, err } return result, true, nil ``` Notably, `WeakDecode(...)` eventually calls one of the decode helpers, which surfaces the original value via `strconv` helpers: https://github.com/go-viper/mapstructure/blob/8c61ec1924fcfa522f9fc6b4618c672db61d1a38/mapstructure.go#L720-L727 https://github.com/go-viper/mapstructure/blob/8c61ec1924fcfa522f9fc6b4618c672db61d1a38/mapstructure.go#L791-L798 https://github.com/go-viper/mapstructure/blob/8c61ec1924fcfa522f9fc6b4618c672db61d1a38/decode_hooks.go#L180 & more. These are different code paths than are fixed in the previous iteration at GHSA-fv92-fjc5-jj9h. ##### PoC To reproduce with OpenBao: ``` $ podman run --pull=always -p 8300:8300 openbao/openbao:latest server -dev -dev-root-token-id=root -dev-listen-address=0.0.0.0:8300 ``` and in a new tab: ``` $ BAO_TOKEN=root BAO_ADDR=http://localhost:8300 bao auth enable userpass Success! Enabled userpass auth method at: userpass/ $ curl -X PUT -H "X-Vault-Request: true" -H "X-Vault-Token: root" -d '{"ttl":"asdf"}' "http://localhost:8200/v1/auth/userpass/users/asdf" --> server logs: 2025-06-25T21:32:25.101-0500 [ERROR] core: failed to run existence check: error="error converting input for field \"ttl\": time: invalid duration \"asdf\"" ``` ##### Impact This is an information disclosure bug with little mitigation. See https://discuss.hashicorp.com/t/hcsec-2025-09-vault-may-expose-sensitive-information-in-error-logs-when-processing-malformed-data-with-the-kv-v2-plugin/74717 for a previous version. That version was fixed, but this is in the second part of that error message (starting at `'' expected a map, got 'string'` -- when the field type is `string` and a `map` is provided, we see the above information leak -- the previous example had a `map` type field with a `string` value provided). This was rated 4.5 Medium by HashiCorp in the past iteration. #### Severity - CVSS Score: 5.3 / 10 (Medium) - Vector String: `CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N` #### References - [https://github.com/go-viper/mapstructure/security/advisories/GHSA-2464-8j7c-4cjm](https://github.com/go-viper/mapstructure/security/advisories/GHSA-2464-8j7c-4cjm) - [https://github.com/go-viper/mapstructure/commit/742921c9ba2854d27baa64272487fc5075d2c39c](https://github.com/go-viper/mapstructure/commit/742921c9ba2854d27baa64272487fc5075d2c39c) - [https://github.com/go-viper/mapstructure](https://github.com/go-viper/mapstructure) This data is provided by [OSV](https://osv.dev/vulnerability/GHSA-2464-8j7c-4cjm) and the [GitHub Advisory Database](https://github.com/github/advisory-database) ([CC-BY 4.0](https://github.com/github/advisory-database/blob/main/LICENSE.md)). </details> --- ### Release Notes <details> <summary>go-viper/mapstructure (github.com/go-viper/mapstructure/v2)</summary> ### [`v2.4.0`](https://github.com/go-viper/mapstructure/releases/tag/v2.4.0) [Compare Source](go-viper/mapstructure@v2.3.0...v2.4.0) #### What's Changed - refactor: replace interface{} with any by [@​sagikazarmark](https://github.com/sagikazarmark) in go-viper/mapstructure#115 - build(deps): bump github/codeql-action from 3.29.0 to 3.29.2 by [@​dependabot](https://github.com/dependabot)\[bot] in go-viper/mapstructure#114 - Generic tests by [@​sagikazarmark](https://github.com/sagikazarmark) in go-viper/mapstructure#118 - Fix godoc reference link in README.md by [@​peczenyj](https://github.com/peczenyj) in go-viper/mapstructure#107 - feat: add StringToTimeLocationHookFunc to convert strings to \*time.Location by [@​ErfanMomeniii](https://github.com/ErfanMomeniii) in go-viper/mapstructure#117 - feat: add back previous StringToSlice as a weak function by [@​sagikazarmark](https://github.com/sagikazarmark) in go-viper/mapstructure#119 #### New Contributors - [@​ErfanMomeniii](https://github.com/ErfanMomeniii) made their first contribution in go-viper/mapstructure#117 **Full Changelog**: go-viper/mapstructure@v2.3.0...v2.4.0 </details> --- ### Configuration 📅 **Schedule**: Branch creation - "" (UTC), Automerge - Between 12:00 AM and 03:59 AM ( * 0-3 * * * ) (UTC). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0MS43Ni4wIiwidXBkYXRlZEluVmVyIjoiNDEuNzYuMCIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOlsiS2luZC9DaG9yZSJdfQ==--> <!--start release-notes-assistant--> <!--URL:https://code.forgejo.org/forgejo/runner--> - other - [PR](https://code.forgejo.org/forgejo/runner/pulls/904): <!--number 904 --><!--line 0 --><!--description VXBkYXRlIGdpdGh1Yi5jb20vZ28tdmlwZXIvbWFwc3RydWN0dXJlL3YyIChpbmRpcmVjdCkgdG8gdjIuNC4wIFtTRUNVUklUWV0=-->Update github.com/go-viper/mapstructure/v2 (indirect) to v2.4.0 [SECURITY]<!--description--> <!--end release-notes-assistant--> Reviewed-on: https://code.forgejo.org/forgejo/runner/pulls/904 Reviewed-by: earl-warren <earl-warren@noreply.code.forgejo.org> Co-authored-by: Renovate Bot <bot@kriese.eu> Co-committed-by: Renovate Bot <bot@kriese.eu>
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