CVE-2026-82880 (GCVE-0-2026-82880)

Vulnerability from cvelistv5 – Published: 2026-08-31 10:51 – Updated: 2026-08-31 14:18
VLAI
Title
YaCy Search Server through 1.941 XML External Entity Injection via Parsers
Summary
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.
Severity
8.7 (High)
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
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 14:17 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version CPE status
yacy yacy_search_server Affected: 0 , ≤ 1.941 (custom)
Unaffected: 3c3a307e8b7a0ebbc4d1e6b10898b52e15c0cd44 (git)
guessed Create a notification for this product.
Date Public
2026-08-22 00:00
Credits
Yu Sun
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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