CVE-2026-77970 (GCVE-0-2026-77970)
Vulnerability from cvelistv5 – Published: 2026-08-30 00:18 – Updated: 2026-08-31 14:51
VLAI
EPSS
VEX
Title
Sensitive fields nested in embedded values are not redacted in AshPaperTrail versions
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 14:51 UTC
CWE
- CWE-312 - Cleartext Storage of Sensitive Information
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ash-project/ash_paper_trail/se… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-77970.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-77970 | related |
| https://github.com/ash-project/ash_paper_trail/co… | patch |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| ash-project | ash_paper_trail |
Affected:
0.3.0 , < 0.7.0
(semver)
cpe:2.3:a:ash-project:ash_paper_trail:*:*:*:*:*:*:*:* |
||
| ash-project | ash_paper_trail |
Affected:
ffe5e03b14d26b73bff17f3eca811591788aba9c , < 0cd4acfe7f48397673d8594fb5e2cd0f1bda6e40
(git)
cpe:2.3:a:ash-project:ash_paper_trail:*:*:*:*:*:*:*:* |
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"value": "\u003cp\u003eThe resource must version an attribute or accept an action input whose type is an embedded resource, union, or list containing a \u003ccode\u003esensitive?\u003c/code\u003e field, with \u003ccode\u003esensitive_attributes\u003c/code\u003e set to \u003ccode\u003e:redact\u003c/code\u003e or \u003ccode\u003e:ignore\u003c/code\u003e. Exposure requires read access to the generated version resource.\u003c/p\u003e"
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{
"base64": false,
"type": "text/markdown",
"value": "The resource must version an attribute or accept an action input whose type is an embedded resource, union, or list containing a `sensitive?` field, with `sensitive_attributes` set to `:redact` or `:ignore`. Exposure requires read access to the generated version resource."
}
],
"value": "The resource must version an attribute or accept an action input whose type is an embedded resource, union, or list containing a sensitive? field, with sensitive_attributes set to :redact or :ignore. Exposure requires read access to the generated version resource."
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:ash-project:ash_paper_trail:*:*:*:*:*:*:*:*",
"versionEndExcluding": "0.7.0",
"versionStartIncluding": "0.3.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Peter Ullrich"
},
{
"lang": "en",
"type": "reporter",
"value": "Peter Ullrich"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Zach Daniel / Ash Project"
},
{
"lang": "en",
"type": "coordinator",
"value": "Jonatan M\u00e4nnchen / EEF"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eCleartext 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.\u003c/p\u003e\n\u003cp\u003e\u003ccode\u003esensitive_attributes :redact\u003c/code\u003e and \u003ccode\u003e:ignore\u003c/code\u003e only act on the tracked resource\u0027s top-level attributes. \u003ccode\u003emaybe_redact_changes/3\u003c/code\u003e and the stored-action-input path in \u003ccode\u003eAshPaperTrail.Resource.Changes.CreateNewVersion\u003c/code\u003e derive the sensitive set from the resource\u0027s 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 \u003ccode\u003esensitive?\u003c/code\u003e field (for example an accepted credentials embed carrying a token) is written to the version table in cleartext.\u003c/p\u003e\n\u003cp\u003eThis issue affects ash_paper_trail: from 0.3.0 before 0.7.0.\u003c/p\u003e"
},
{
"base64": false,
"type": "text/markdown",
"value": "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.\n\n`sensitive_attributes :redact` and `:ignore` only act on the tracked resource\u0027s 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\u0027s 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.\n\nThis issue affects ash_paper_trail: from 0.3.0 before 0.7.0."
}
],
"value": "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.\n\nsensitive_attributes :redact and :ignore only act on the tracked resource\u0027s 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\u0027s 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.\n\nThis issue affects ash_paper_trail: from 0.3.0 before 0.7.0."
}
],
"impacts": [
{
"capecId": "CAPEC-37",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-37 Retrieve Embedded Sensitive Data"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "LOCAL",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "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",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-312",
"description": "CWE-312 Cleartext Storage of Sensitive Information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-30T00:18:22.853Z",
"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"shortName": "EEF"
},
"references": [
{
"tags": [
"vendor-advisory",
"related"
],
"url": "https://github.com/ash-project/ash_paper_trail/security/advisories/GHSA-v645-6jm6-cgpj"
},
{
"tags": [
"related"
],
"url": "https://cna.erlef.org/cves/CVE-2026-77970.html"
},
{
"tags": [
"related"
],
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-77970"
},
{
"tags": [
"patch"
],
"url": "https://github.com/ash-project/ash_paper_trail/commit/0cd4acfe7f48397673d8594fb5e2cd0f1bda6e40"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Sensitive fields nested in embedded values are not redacted in AshPaperTrail versions"
}
},
"cveMetadata": {
"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"assignerShortName": "EEF",
"cveId": "CVE-2026-77970",
"datePublished": "2026-08-30T00:18:22.853Z",
"dateReserved": "2026-08-24T15:45:02.123Z",
"dateUpdated": "2026-08-31T14:51:59.120Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.