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CVE-2026-82880: Improper Restriction of XML External Entity Reference in yacy yacy_search_server

0
High
VulnerabilityCVE-2026-82880cvecve-2026-82880
Published: 08/31/2026 (08/31/2026, 10:51:05 UTC)
Source: CVE Database V5
Vendor/Project: yacy
Product: yacy_search_server

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 v4.0

Score 8.7high

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
High
Vuln. Integrity
None
Vuln. Availability
None
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
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

Affected software

GitHub Actionsmore threats →cve
yacy_search_server
pkg:github/yacy_search_server
Affected versions
<=1.941

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Data Version
5.2
Assigner Short Name
VulnCheck
Date Reserved
2026-08-31T08:38:43.268Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a95607cacd9273b49fd6f2c

Added to database: 08/31/2026, 11:07:40 UTC

Last updated: 08/31/2026, 11:07:40 UTC

Views: 1

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