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Fencer Intel
high 7.5

CVE-2012-6612 in the critical feed json

Improper Restriction of XML External Entity Reference in Apache Solr

published 2013-12-07 12 y ago modified 2026-06-16 4 mo ago also GHSA-6cpj-3g83-q2j4 , EUVD-2022-2772

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
10.1%
EPSS 10.1% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

The (1) UpdateRequestHandler for XSLT or (2) XPathEntityProcessor in Apache Solr before 4.1 allows remote attackers to have an unspecified impact via XML data containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue, different vectors than CVE-2013-6407.

Patch / fix

  • maven org.apache.solr:solr-core 4.1.0
  • lucene-solr Debian 14, Debian 13, Debian 12 3.6.2+dfsg-2

debian advisories DEBIAN-CVE-2012-6612

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-6612 updated cvss 5.0

Solr: XML eXternal Entity (XXE) flaw in XML and XSLT UpdateRequestHandler

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

10.08% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected packages

ecosystem package affected fixed in
maven org.apache.solr:solr-core
<4.1.0
4.1.0

Classification

Weakness
  • CWE-611 Improper Restriction of XML External Entity Reference

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.