CVE-2026-82880 YaCy Search Server through 1.941 XML External Entity Injection via Parsers
Attackers can exploit XML parsers in YaCy Search Server to read local files via malicious documents, leading to data exfiltration into the search index.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-82880?
CVE-2026-82880 is a high-severity vulnerability in yacy_search_server, published on 31 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-611
Which versions are affected by CVE-2026-82880?
How do I fix CVE-2026-82880?
No fix has been published for CVE-2026-82880 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-82880 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82880 exists.
Sources
Also known as GHSA-7qrf-6jm7-8f89.