CVE-2026-86338Network attack vectorHinoki check available

Protected-field disclosure via unredacted filter references

Published Sep 16, 2026 · Updated Sep 16, 2026

Information disclosure in Ash 2.11.0-rc.0 through 3.33.3 allows attackers to infer protected values through user-supplied filters. The field-policy authorizer replaces forbidden attribute references with nil, but failed to match Ash.Query.Calculation and Ash.Query.Aggregate references, so predicates evaluated their real values. The application must expose filtering over a forbidden calculation or aggregate; repeated match-or-no-match probes disclose its value.

CVSS severityUnavailable
Unscored
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Information disclosure in Ash 2.11.0-rc.0 through 3.33.3 allows attackers to infer protected values through user-supplied filters. The field-policy authorizer replaces forbidden attribute references with nil, but failed to match Ash.Query.Calculation and Ash.Query.Aggregate references, so predicates evaluated their real values. The application must expose filtering over a forbidden calculation or aggregate; repeated match-or-no-match probes disclose its value.

The record

CVE
CVE-2026-86338
Published
Sep 16, 2026
Updated
Sep 16, 2026
Vendor
Ash Framework
Product
Ash
Classifications
Unavailable
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=0b6d93c7c4637280b46ae66ea1d2eaf013701238 <b3d4503241f3deacb5ceb955e10a4fa927da0f67
  2. Affected versionversion=2.11.0-rc.0 <3.33.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Ash Framework · Ashversion=0b6d93c7c4637280b46ae66ea1d2eaf013701238 <b3d4503241f3deacb5ceb955e10a4fa927da0f67; version=2.11.0-rc.0 <3.33.4

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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