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CVE Record

CVE-2025-48044: Authorization bypass when bypass policy condition evaluates to true

Incorrect Authorization vulnerability in ash-project ash allows Authentication Bypass. This vulnerability is associated with program files lib/ash/policy/policy.ex and program routines 'Elixir.Ash.Policy.Policy':expression/2. This issue affects ash: from 3.6.3 before 3.7.1.

HighCVSS 8.6Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Ash applications using affected authorization policies may let a low-privileged user bypass intended access controls when a bypass-policy condition evaluates as true. Successful abuse could expose or alter sensitive application data. Availability impact is not identified. The issue is remotely reachable and low complexity according to CVSS 4.0.

Executive priority

Treat as a high-priority authorization defect. Promptly identify internet-facing or sensitive-data applications using affected Ash versions, then upgrade and test access controls. Escalate systems where bypass policies govern confidential records or privileged changes. There is no supplied evidence of active exploitation.

Technical view

CVE-2025-48044 is an incorrect-authorization flaw, CWE-863, in Ash policy expression handling, associated with lib/ash/policy/policy.ex and expression/2. It affects Ash versions from 3.6.3 through versions before 3.7.1. The supplied CVSS 4.0 score is 8.6, with network access, low complexity, low privileges, and no user interaction.

Likely exposure

Exposure is likely where an Elixir application runs Ash 3.6.3 to below 3.7.1 and relies on affected bypass-policy conditions for authorization. Actual risk depends on application policy configuration and protected resources. The bundle does not establish which deployments or downstream applications are affected.

Exploitation context

The source bundle provides no evidence of public exploitation or exploit availability, and the CVE is not listed as KEV. This does not prove exploitation is absent. The CVSS vector indicates a remote, low-privileged attacker could potentially trigger the flaw without user interaction.

Researcher notes

The affected interval is stated as 3.6.3 through versions before 3.7.1, while structured affected entries also reference a specific repository commit. Validate exposure using both the resolved package version and vendor advisory. The bundle attributes the flaw to policy expression handling but does not provide enough detail to characterize every vulnerable policy pattern.

Mitigation direction

  • Upgrade Ash to version 3.7.1 or later according to the stated affected range.
  • Review the vendor advisory before deployment for any release-specific requirements.
  • Prioritize applications whose bypass policies protect sensitive reads or writes.
  • Apply compensating authorization checks if an immediate upgrade is impossible.

Validation and detection

  • Inventory deployed Ash versions, including locked transitive dependencies.
  • Identify authorization policies containing bypass conditions in affected applications.
  • Confirm production resolves Ash 3.7.1 or later after remediation.
  • Test that low-privileged users cannot access or modify protected resources.
  • Review access logs for unexpected successful actions by low-privileged accounts.
Prepared
Confidence
high
Sources
6

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-863: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2025-48044 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.6 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
5Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: yesTechnical Impact: total

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.6CVSS 4.0HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:NEEF

Vulnerability scoring details

Base CVSS 4.0 score

8.6High
CVSS 4.0 vector shape for CVE-2025-48044Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
ash-projectashash, 3.6.3unaffected
ash-projectashash-project/ash, 79749c2685ea031ebb2de8cf60cc5edced6a8dd0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-863 · source CWE mapping

Incorrect Authorization

Incorrect Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.