CVE-2026-77970
Sensitive fields nested in embedded values are not redacted in AshPaperTrail versions
- State
- Published
- Severity
- 5.9 Medium
- Published
- Aug 30, 2026
- Updated
- Aug 31, 2026
- Reserved
- Aug 24, 2026
Description
Cleartext Storage of Sensitive Information vulnerability in ash-project ash_paper_trail allows an attacker with read access to the generated version resource to recover sensitive values nested inside embedded resources, unions, or lists.
sensitive_attributes :redact and :ignore only act on the tracked resource's top-level attributes. maybe_redact_changes/3 and the stored-action-input path in AshPaperTrail.Resource.Changes.CreateNewVersion derive the sensitive set from the resource's own attributes and never descend into embedded, union, or list values, so a non-sensitive attribute or action argument that holds an embed with a sensitive? field (for example an accepted credentials embed carrying a token) is written to the version table in cleartext.
This issue affects ash_paper_trail: from 0.3.0 before 0.7.0.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.9 Medium | CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | EEF |
Weaknesses
- CWE-312 Cleartext Storage of Sensitive Information
Affected Products
| Product | Versions |
|---|---|
ash_paper_trailash-project |
|
ash_paper_trailash-project |
|
References
- https://github.com/ash-project/ash_paper_trail/security/advisories/GHSA-v645-6jm6-cgpjvendor-advisoryrelated
- https://cna.erlef.org/cves/CVE-2026-77970.htmlrelated
- https://osv.dev/vulnerability/EEF-CVE-2026-77970related
- https://github.com/ash-project/ash_paper_trail/commit/0cd4acfe7f48397673d8594fb5e2cd0f1bda6e40patch
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