Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| ohler55 | oj | affected |
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No vendor fix or workaround currently provided.
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Tracking
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| Source | ID | Title |
|---|---|---|
 Github GHSA |
GHSA-vwm4-62gf-x745 | Oj: Use-After-Free in Oj::Parser array_class/hash_class GC Marking |
Wed, 01 Jul 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Oj (Optimized JSON) is a JSON parser and Object marshaller packaged as a Ruby gem. In versions prior to 3.17.2, Oj::Parser in usual mode does not mark array_class and hash_class references during garbage collection, leading to Use-After-Free. If GC runs after the class is assigned but before a parse, the class object is reclaimed, leaving the parser holding a dangling VALUE. The subsequent parse call dereferences the freed object, producing a segfault. This issue has been fixed in version 3.17.2. | |
| Title | Oj: Use-After-Free in Oj::Parser array_class/hash_class GC Marking | |
| Weaknesses | CWE-416 | |
| References |
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| Metrics |
cvssV4_0
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Subscriptions
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-30T23:36:38.526Z
Reserved: 2026-06-16T13:49:33.555Z
Link: CVE-2026-54901
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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