← Vulnerability feed

Vulnerability record · CVE-2026-82880 · published 31 August 2026

CVE-2026-82880: XML external entity (XXE) vulnerability

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.

8.7 CVSS 4.0 High EPSS 0.60% · top 53.4% CWE-611 · XML external entity (XXE) Deferred
8.7CVSS 4.0 base score
0.60%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
8References
31 Aug 2026Last modified by NVD

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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/yacy/yacy_search_server
https://github.com/yacy/yacy_search_server/blob/Release_1.941/source/net/yacy/document/parser/images/svgParser.java#L72
https://github.com/yacy/yacy_search_server/blob/Release_1.941/source/net/yacy/document/parser/mmParser.java#L66
https://github.com/yacy/yacy_search_server/blob/Release_1.941/source/net/yacy/document/parser/xml/opensearchdescriptionR
https://github.com/yacy/yacy_search_server/commit/3c3a307e8b7a0ebbc4d1e6b10898b52e15c0cd44
https://github.com/yacy/yacy_search_server/issues/818
https://www.vulncheck.com/advisories/yacy-search-server-through-1.941-xml-external-entity-injection-via-parsers
https://github.com/yacy/yacy_search_server/issues/818

Track CVE-2026-82880 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-58360GeoServer WMS GetMap XXE allows unauthenticated file read and SSRFGeoServer versions 2.26.0 through 2.26.2 and before 2.25.6 accept XML input at the /geoserver/wms GetMap endpoint without sufficiently restricting ex…KEVEPSS 61%analysed9.8CVE-2025-2776SysAid On-Prem unauthenticated XXE in Server URL processingSysAid On-Prem versions up to 23.3.40 process the Server URL without restricting XML external entities, so an unauthenticated attacker can supply cra…KEVEPSS 64%analysed7.5CVE-2025-2775SysAid On-Prem unauthenticated XXE in Checkin processingSysAid On-Prem versions up to 23.3.40 process Checkin XML without restricting external entities, so an unauthenticated attacker can supply a crafted …KEVEPSS 43%analysed7.5CVE-2023-45727Proself XXE flaw allows unauthenticated file readProself Enterprise/Standard, Gateway, and Mail Sanitize editions fail to restrict XML external entities when parsing malformed XML requests. A remote…KEVEPSS 3.5%analysed9.8CVE-2024-34102Adobe Commerce and Magento XXE flaw allows unauthenticated code executionAdobe Commerce and Magento Open Source are affected by an improper restriction of XML external entity reference (XXE) vulnerability. A crafted XML do…KEVEPSS 100%analysed9.8CVE-2019-9670Zimbra mailboxd Autodiscover XXE allows unauthenticated compromiseThe mailboxd component in Synacor Zimbra Collaboration Suite 8.7.x before 8.7.11p10 parses XML in the Autodiscover servlet without restricting extern…KEVEPSS 100%analysed7.5CVE-2019-13608Citrix StoreFront Server XXE allows unauthenticated file disclosureCitrix StoreFront Server before 1903, 7.15 LTSR before CU4 (3.12.4000), and 7.6 LTSR before CU8 (3.0.8000) is vulnerable to XML External Entity (XXE)…KEVEPSS 30%analysed6.5CVE-2016-9563SAP NetWeaver AS Java XXE in BC-BMT-BPM-DSK endpointThe BC-BMT-BPM-DSK component in SAP NetWeaver AS Java 7.5 fails to disable XML external entity processing, allowing XXE attacks through the sap.com~t…KEVEPSS 24%analysed

Source: NIST National Vulnerability Database (record CVE-2026-82880), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.