Vulnerability Description
YaCy Search Server through 1.941 contains an XML external entity injection vulnerability in SVG, FreeMind, and OpenSearch parsers that fail to disable external entity resolution. Attackers can publish malicious documents with DOCTYPE declarations containing SYSTEM entities pointing to local files, causing the crawler to exfiltrate file contents into the searchable index.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/yacy/yacy_search_server
- https://github.com/yacy/yacy_search_server/blob/Release_1.941/source/net/yacy/do
- https://github.com/yacy/yacy_search_server/blob/Release_1.941/source/net/yacy/do
- https://github.com/yacy/yacy_search_server/blob/Release_1.941/source/net/yacy/do
- https://github.com/yacy/yacy_search_server/commit/3c3a307e8b7a0ebbc4d1e6b10898b5
- https://github.com/yacy/yacy_search_server/issues/818
- https://www.vulncheck.com/advisories/yacy-search-server-through-1.941-xml-extern
- https://github.com/yacy/yacy_search_server/issues/818
FAQ
What is CVE-2026-82880?
CVE-2026-82880 is a vulnerability with a CVSS score of 7.5 (HIGH). YaCy Search Server through 1.941 contains an XML external entity injection vulnerability in SVG, FreeMind, and OpenSearch parsers that fail to disable external entity resolution. Attackers can publish...
How severe is CVE-2026-82880?
CVE-2026-82880 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-82880?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.