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
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-77970
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-77970
cna.erlef.org
https://cna.erlef.org/cves/CVE-2026-77970.html
github.com
https://github.com/ash-project/ash_paper_trail/commit/0cd4acfe7f48397673d8594fb5e2cd0f1bda6e40
github.com
https://github.com/ash-project/ash_paper_trail/security/advisories/GHSA-v645-6jm6-cgpj
osv.dev
https://osv.dev/vulnerability/EEF-CVE-2026-77970
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