---
cve: "CVE-2026-77970"
severity: "MEDIUM"
cvss: 5.9
epss: "10%"
vendor: "ash-project"
kev: false
exploited: false
published: "2026-08-30 01:20:29"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-02T15:33:53+02:00"
---

# CVE-2026-77970

> 5.9 MEDIUM · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- e03925c19365697ceb099d2ceca9ee1f5ce8c8b8 (Commit)
- 0cd4acfe7f48397673d8594fb5e2cd0f1bda6e40 (Commit)

## Referenzen

- <https://github.com/ash-project/ash_paper_trail/security/advisories/GHSA-v645-6jm6-cgpj>
- <https://cna.erlef.org/cves/CVE-2026-77970.html>
- <https://osv.dev/vulnerability/EEF-CVE-2026-77970>
- <https://github.com/ash-project/ash_paper_trail/commit/0cd4acfe7f48397673d8594fb5e2cd0f1bda6e40>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-77970) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_