CVE-2026-77970

Sensitive fields nested in embedded values are not redacted in AshPaperTrail versions

MEDIUM
5.9
CVSS Score
Published: August 30, 2026 at 12:18 AM UTC
Updated: September 1, 2026 at 09:31 PM UTC
1 product affected across 1 vendorAshPaperTrail

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Severity
MEDIUM5.9
Exploit prediction
EPSS 0.1%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0.3.0 ≤ v < 0.7.00.3.0ffe5e03b14d26b73bff17f3eca811591788aba9c
Vendor states this is fixed in 0cd4acfe7f48397673d8594fb5e2cd0f1bda6e40 (fixed)
Affected range stops below 0.7.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.9MEDIUMEEF
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-312

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