Vulnerability-Lookup

CVE-2026-12975 (GCVE-0-2026-12975)

Vulnerability from cvelistv5 – Published: 2026-06-25 21:12 – Updated: 2026-08-26 12:04

Title

Apicurio/apicurio-registry: apicurio-registry: unhardened saxparser in content-type detection leads to blind xxe / ssrf / billion-laughs dos

Summary

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.

Severity

8.5 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-26 13:38 UTC

CWE

CWE-611 - Improper Restriction of XML External Entity Reference

Assigner

redhat CNA under the redhat root

CNA scorecard B 81/100 over 1018 records in the last 180 days details

References

4 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:59360	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-12975	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2491688	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex

Impacted products

2 products

Vendor	Product	Version	CPE status
Red Hat	Red Hat build of Apicurio Registry 3.3.1	cpe:/a:redhat:apicurio_registry:3.3
Red Hat	Red Hat build of Apicurio Registry 3.3.1	Unaffected: registry-rhel8 , < * (rpm) Unaffected: registry-rhel9 , < * (rpm) cpe:/a:redhat:apicurio_registry:3.3

Date Public

2026-06-10 13:00

Show details on NVD website

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          "metrics": [
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              "value": "Made public."
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        "datePublished": "2026-06-25T21:12:31.301Z",
        "dateReserved": "2026-06-23T10:44:04.308Z",
        "dateUpdated": "2026-08-26T12:04:54.899Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
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}

FKIE_CVE-2026-12975

Vulnerability from fkie_nvd - Published: 2026-06-25 22:17 - Updated: 2026-08-26 13:17

Severity

8.5 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H
8.5 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H

Summary

References

URL	Tags
secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:59360
secalert@redhat.com	https://access.redhat.com/security/cve/CVE-2026-12975	Vendor Advisory
secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=2491688	Issue Tracking, Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:59360
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/security/cve/CVE-2026-12975	Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://bugzilla.redhat.com/show_bug.cgi?id=2491688	Issue Tracking, Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12975.json	Vendor Advisory

Impacted products

	Vendor	Product	Version
	redhat	build_of_apicurio_registry	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:apicurio_registry:3.3"
          ],
          "defaultStatus": "unaffected",
          "packageName": "apicurio/apicurio-registry-rhel8",
          "product": "Red Hat build of Apicurio Registry 3.3.1",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:apicurio_registry:3.3"
          ],
          "defaultStatus": "unaffected",
          "packageName": "apicurio/apicurio-registry-rhel9",
          "product": "Red Hat build of Apicurio Registry 3.3.1",
          "vendor": "Red Hat"
        }
      ],
      "source": "secalert@redhat.com"
    },
    {
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          ],
          "defaultStatus": "affected",
          "packageName": "apicurio/apicurio",
          "product": "Red Hat build of Apicurio Registry 3.3.1",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "registry-rhel8",
              "versionType": "rpm"
            },
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "registry-rhel9",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:redhat:build_of_apicurio_registry:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B80ACBA3-FFCF-44E6-A77E-0BD398F0C4D7",
              "versionEndIncluding": "3.2",
              "versionStartIncluding": "3.0",
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      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "id": "CVE-2026-12975",
  "lastModified": "2026-08-26T13:17:45.910",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.5,
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          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
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        "type": "Secondary"
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}

GHSA-7G64-F2HM-VJXP

Vulnerability from github – Published: 2026-06-26 00:32 – Updated: 2026-08-25 15:32

Details

Severity

8.5 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-12975"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-25T22:17:00Z",
    "severity": "HIGH"
  },
  "details": "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.",
  "id": "GHSA-7g64-f2hm-vjxp",
  "modified": "2026-08-25T15:32:42Z",
  "published": "2026-06-26T00:32:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12975"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:59360"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-12975"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2491688"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12975.json"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

RHSA-2026:59360

Vulnerability from csaf_redhat - Published: 2026-08-25 10:07 - Updated: 2026-10-15 15:37

Summary

Red Hat Security Advisory: Apicurio Registry (container images) release and security update [ 3.3.1 GA ]

Severity

Important

Scope

6 vulnerabilities in this advisory, including CVE-2026-12975.

CVE-2026-12975

8.5 (High)


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

Fixed: 1 product

https://access.redhat.com/errata/RHSA-2026:59360

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-12975 (GCVE-0-2026-12975)

FKIE_CVE-2026-12975

GHSA-7G64-F2HM-VJXP

RHSA-2026:59360

Tags

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Nomenclature

Vulnerability timeline

Related by attack behaviour