CVE-2019-12401
Solr versions 1.3.0 to 1.4.1, 3.1.0 to 3.6.2 and 4.0.0 to 4.10.4 are vulnerable to an XML resource consumption attack (a.k.a. Lol Bomb)…
- 7.5HighCVSS base score
- 8.5%Exploitation in 30 daysEPSS · top 4.9% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Solr versions 1.3.0 to 1.4.1, 3.1.0 to 3.6.2 and 4.0.0 to 4.10.4 are vulnerable to an XML resource consumption attack (a.k.a. Lol Bomb) via it’s update handler.?By leveraging XML DOCTYPE and ENTITY type elements, the attacker can create a pattern that will expand when the server parses the XML causing OOMs.
Timeline
ID reserved
By apache
- 4 months later
· 4 months later
Published
- 5 years later
· 5 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 8.5% · top 4.9% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.apache.solr:solr-coreGHSA-jq2w-w7v2-69q5 (opens in a new tab)
References
11
- [lucene-general] 20190909 [SECURITY] CVE-2019-12401: XML Bomb in Apache Solr versions prior to 5.0 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [lucene-dev] 20190909 [SECURITY] CVE-2019-12401: XML Bomb in Apache Solr versions prior to 5.0 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20190909 [SECURITY] CVE-2019-12401: XML Bomb in Apache Solr versions prior to 5.0 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [lucene-dev] 20190909 [jira] [Resolved] (SOLR-13750) [CVE-2019-12401] XML Bomb in Apache Solr versions prior to 5.0.0 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [announce] 20190909 [SECURITY] CVE-2019-12401: XML Bomb in Apache Solr versions prior to 5.0 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [lucene-solr-user] 20190909 [SECURITY] CVE-2019-12401: XML Bomb in Apache Solr versions prior to 5.0 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [lucene-dev] 20190909 [jira] [Updated] (SOLR-13750) [CVE-2019-12401] XML Bomb in Apache Solr versions prior to 5.0.0 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [www-announce] 20190909 [SECURITY] CVE-2019-12401: XML Bomb in Apache Solr versions prior to 5.0 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [lucene-dev] 20190911 [jira] [Commented] (SOLR-13750) [CVE-2019-12401] XML Bomb in Apache Solr versions prior to 5.0.0 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://security.netapp.com/advisory/ntap-20190926-0002/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-12401-XML%20Bomb-Apache%20Solr (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-4413 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-jq2w-w7v2-69q5 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2019-12401)Record last updated .