🛡️ CVE-2019-12401 — solr-core
Description
Apache Solr vulnerable to XML Bomb
Solr versions prior to 5.0.0 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.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.
Weakness class
CVE-2019-12401 is classified as CWE-776: XML Entity Expansion. Nested entity definitions expand enormously when parsed, consuming memory and CPU.
Affected software
CVE-2019-12401 is recorded against 1 package.
- org.apache.solr:solr-core (fixed in 5.0.0)
Timeline and source
Published on 24 May 2022 and last revised on 21 February 2024. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
nvd.nist.gov (Advisory)
github.com (Web)
issues.apache.org (Web)
lists.apache.org (Web)
lists.apache.org (Web)
lists.apache.org (Web)
lists.apache.org (Web)
lists.apache.org (Web)
lists.apache.org (Web)
lists.apache.org (Web)
security.netapp.com (Web)
mail-archives.us.apache.org (Web)
www.openwall.com (Web)
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| org.apache.solr:solr-core | — | 5.0.0 |
Similar Threats
- Critical CVE-2026-44825
- High CVE-2026-22022
- High CVE-2026-22444
- Medium CVE-2024-52012
- High CVE-2025-24814
More CVE 2019 advisories
Browse all of CVE 2019 in the advisory index.
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