CVE-2026-77454Public exploitHinoki check available

Authorization bypass via dropped exists/2 predicate

Published Aug 30, 2026 · Updated Aug 30, 2026

Incorrect authorization in AshSql 0.4.1 through 0.7.0 allows local users to bypass data-scoping and policy checks via exists/2 filters. AshSql.Join.related_query/3 omits the caller-supplied predicate, and limit_from_many/5 emits a bare correlated EXISTS when a limited relationship contains a parent-referencing filter or sort. Exploitation requires that relationship configuration; the resulting query matches any related row and can pass a policy after its actor-scoping condition disappears.

CVSS severity5.9
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Incorrect authorization in AshSql 0.4.1 through 0.7.0 allows local users to bypass data-scoping and policy checks via exists/2 filters. AshSql.Join.related_query/3 omits the caller-supplied predicate, and limit_from_many/5 emits a bare correlated EXISTS when a limited relationship contains a parent-referencing filter or sort. Exploitation requires that relationship configuration; the resulting query matches any related row and can pass a policy after its actor-scoping condition disappears.

The record

CVE
CVE-2026-77454
Published
Aug 30, 2026
Updated
Aug 30, 2026
Vendor
Ash Framework
Product
AshSql
Classifications
CWE-863, CAPEC-1
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 30, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.4.1 <0.7.1
  2. Affected versionversion=e26a63b29bd7501505fafd726f14262cdc3b6629 <865fdd4e5e70724a23b19c048e6768c31d2209ab

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Ash Framework · AshSqlversion=0.4.1 <0.7.1; version=e26a63b29bd7501505fafd726f14262cdc3b6629 <865fdd4e5e70724a23b19c048e6768c31d2209ab

Published CVSS scores

5.9GitHubCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

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.

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No observations available

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

Weakness, pattern, technique

CWE-863Incorrect Authorization
CAPEC-1Accessing Functionality Not Properly Constrained by ACLs

Public exploit references

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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