CVE-2026-12975
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.5 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H
- EPSS
- 0.44% probability · 37th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-611
- Affected
- redhat/build of apicurio registry
- Source
- secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2026:59360
- https://access.redhat.com/security/cve/CVE-2026-12975Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2491688Issue Tracking, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:59360
- https://access.redhat.com/security/cve/CVE-2026-12975Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2491688Issue Tracking, Vendor Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12975.jsonVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.