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Vulnerabilities

Vulnerability · CVE-2026-12993

sync 2026-11-04T18:12:28Z

Published Unknown date · sync 2026-11-04T18:12:28Z

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-12993. EPSS is 0.52%. Act only if a listed version of sync 2026-11-04T18:12:28Z is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (sync 2026-11-04T18:12:28Z).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.52%
Remediation
Not established
Affected products
maven io.apicurio/apicurio-registry-schema-util-xml

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 JA

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • maven io.apicurio/apicurio-registry-schema-util-xml[,3.2.6),[3.3.0,3.3.1)

How to fix CVE-2026-12993

  • No stored fix

    No vendor fix text is stored. Use the linked advisory before you change production.

  • Version check

    Seen in [ · 3 other packages on the advisory

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-12993. EPSS is 0.52%. Act only if a listed version of sync 2026-11-04T18:12:28Z is installed.

Which versions are affected?

Compare what you have installed with [,3.2.6),[3.3.0,3.3.1). Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.52%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 4, 2026 · GitLab Advisory Database

    Detected

    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 JA

Sources

  • CVE.orgVulnerability recordCVE-2026-12993

    Official CVE identifier

    cve.org
  • GitLab Advisory DatabasePackage advisorymaven/io.apicurio/apicurio-registry-schema-util-xml/CVE-2026-12993.yml

    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 JA

    gitlab.com

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 4, 2026
  • GitLab Advisory DatabaseNov 4, 2026