CVE-2026-12993
Last modified
CVE-2026-12993 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A flaw was found in Apicurio Registry. The DocumentBuilderAccessor correctly blocks external DTD and schema access but does not disable DOCTYPE declarations or enable FEATURE_SECURE_PROCESSING. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
Description
A flaw was found in Apicurio Registry. The DocumentBuilderAccessor correctly blocks external DTD and schema access but does not disable DOCTYPE declarations or enable FEATURE_SECURE_PROCESSING. An attacker with artifact-write permission can upload XML documents with internal entity-expansion payloads (billion-laughs variant) that cause CPU and heap exhaustion, partially mitigated by the JAXP default 64,000 entity-expansion limit.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Build Of Apicurio Registry | >= 3.0, <= 3.2 |
References
- https://access.redhat.com/security/cve/CVE-2026-12993Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2491692Issue Tracking, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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