CVE-2026-12975

HIGH

Red Hat Apicurio Registry 3 - XML External Entity Server-Side Request Forgery

Title source: manual

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.

References (3)

Core 3

Core References

Vdb Entry, X_Refsource_Redhat vdb-entry x_refsource_redhat

https://access.redhat.com/security/cve/CVE-2026-12975

Issue Tracking, X_Refsource_Redhat issue-tracking x_refsource_redhat

RHBZ#2491688

https://bugzilla.redhat.com/show_bug.cgi?id=2491688

Vendor Advisory

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12975.json

Scores

CVSS v3 8.5

EPSS 0.0023

EPSS Percentile 14.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-611

Status published

Products (2)

Red Hat/Red Hat build of Apicurio Registry 3

redhat/build_of_apicurio_registry 3.0 - 3.2

Published Jun 25, 2026

Tracked Since Jun 26, 2026