Medium severity · published Aug 30, 2026
CVE-2026-77970
Sensitive fields nested in embedded values are not redacted in AshPaperTrail versions
5.9
CVSS
0.1%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
ash_paper_trail · ash-project
0.3.0 before 0.7.0; ffe5e03b14d26b73bff17f3eca811591788aba9c before 0cd4acfe7f48397673d8594fb5e2cd0f1bda6e40 · source: vendor