Ash.Type.Union with :map_with_tag does not force the tag on dump, enabling tag confusion
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| ash-project | ash | unaffected |
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| ash-project | ash | unaffected |
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| Vendor | Product | Versions | ||||||||||||
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| Ash-project | Ash |
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| Ash-project | Ash |
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| Ash-project | Ash |
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No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.189% probability within 30 days)
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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| Description | Improper Validation of Specified Type of Input vulnerability in ash-project ash lets an attacker confuse the stored type tag of an Ash.Type.Union value that uses storage: :map_with_tag, bypassing that member's validation and any tag-based authorization. For a union with storage: :map_with_tag, each member is identified in storage by a configured tag and tag_value. Ash.Type.Union.dump_to_native/2 (lib/ash/type/union.ex) did not force the configured tag when writing the value, so a tag carried in the submitted value was persisted verbatim. An attacker can therefore store a value whose data belongs to one member but whose tag names a different member. On read the value is re-selected by its tag and treated as the incompatible member (a type confusion), bypassing the real member's constraints and any logic or policy that branches on the union tag. The fix drops any incoming tag and forces the configured tag value on dump. This issue affects ash: from 2.14.18 before 3.32.2. | |
| Title | Ash.Type.Union with :map_with_tag does not force the tag on dump, enabling tag confusion | |
| First Time appeared |
Ash-project
Ash-project ash |
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| Weaknesses | CWE-1287 | |
| CPEs | cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Ash-project
Ash-project ash |
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| References |
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| Metrics |
cvssV4_0
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