CVE-2026-82880CWE-611xxe

CVE-2026-82880

High · published August 31, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
48.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00600 · 48.0th percentile
Weakness
CWE-611 · Improper Restriction of XML External Entity Reference
Published
2026-08-31T15:16Z
References (8)
https://github.com/yacy/yacy_search_server · [email protected]https://github.com/yacy/yacy_search_server/blob/Release_1.941/source/net/yacy/document/parser/images/svgParser.java#L72 · [email protected]https://github.com/yacy/yacy_search_server/blob/Release_1.941/source/net/yacy/document/parser/mmParser.java#L66 · [email protected]https://github.com/yacy/yacy_search_server/blob/Release_1.941/source/net/yacy/document/parser/xml/opensearchdescriptionReader.java#L119 · [email protected]https://github.com/yacy/yacy_search_server/commit/3c3a307e8b7a0ebbc4d1e6b10898b52e15c0cd44 · [email protected]https://github.com/yacy/yacy_search_server/issues/818 · [email protected]https://www.vulncheck.com/advisories/yacy-search-server-through-1.941-xml-external-entity-injection-via-parsers · [email protected]https://github.com/yacy/yacy_search_server/issues/818 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 02 SEP 03:40Z
    EPSS moved — → 0%
    epss
  • 31 AUG 10:51Z
    YaCy Search Server through 1.941 XML External Entity Injection via Parsers
    cvelistv5