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CVE-2018-11761
In Apache Tika 0.1 to 1.18, the XML parsers were not configured to limit entity expansion. They were therefore vulnerable to an entity…
- 7.5HighCVSS base score
- 9.5%Exploitation in 30 daysEPSS · top 4.5% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In Apache Tika 0.1 to 1.18, the XML parsers were not configured to limit entity expansion. They were therefore vulnerable to an entity expansion vulnerability which can lead to a denial of service attack.
Timeline
ID reserved
By apache
- 4 months later
· 4 months later
Published
- 6 years later
· 6 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 | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 9.5% · top 4.5% of all CVEs (12 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
Apache Software Foundation · Apache Tika
- affected 0.1 to 1.18
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.apache.tika:tika-coreGHSA-6jq2-789q-fff2 (opens in a new tab)
References
References4
- 105514 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [tika-dev] 20180919 [CVE-2018-11761] Apache Tika DoS XML Entity Expansion Vulnerability (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [lucene-solr-user] 20190104 Re: SOLR v7 Security Issues Caused Denial of Use - Sonatype Application Composition Report (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html (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-2018-0520 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-6jq2-789q-fff2 (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-2018-11761)Record last updated .