CVE-2026-12975 XML external entity in Red Hat build of Apicurio Registry 3.3.1
Attackers can trigger blind SSRF and denial of service via XML external entity injection in Apicurio Registry's content-type detection.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-12975?
CVE-2026-12975 is a high-severity vulnerability in Red Hat build of Apicurio Registry 3.3.1, published on 25 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw was found in Apicurio Registry. The ContentTypeUtil.isParsableXml() method creates a SAXParserFactory without enabling secure processing features or disabling external entity resolution. An attacker with artifact-write permission (or unauthenticated when the registry runs with default configuration) can upload a crafted XML document to trigger blind server-side request forgery (SSRF) via external DTD/entity fetch, or cause denial of service via entity expansion.
Weakness: CWE-611
Which versions are affected by CVE-2026-12975?
It affects 1 product.
Products include Redhat Build of Apicurio Registry.
How do I fix CVE-2026-12975?
No fix has been published for CVE-2026-12975 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-12975 being exploited?
There is no known exploitation of CVE-2026-12975 in the wild and no public exploit code.
Other vulnerabilities in Red Hat build of Apicurio Registry 3.3.1
Sources
Also known as GHSA-7g64-f2hm-vjxp.