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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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.
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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.
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