CVE-2026-82880

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Source
https://cve.org/CVERecord?id=CVE-2026-82880
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82880.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-82880
Published
2026-08-31T10:51:05.895Z
Modified
2026-09-02T08:05:28.969074Z
Severity
  • 8.7 (High) CVSS_V4 - 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 CVSS Calculator
Summary
YaCy Search Server through 1.941 XML External Entity Injection via Parsers
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82880.json",
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-611"
    ]
}
References

Affected packages

Git / github.com/yacy/yacy_search_server

Affected ranges

Type
GIT
Repo
https://github.com/yacy/yacy_search_server
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
f0464e7fbcfcb69127f0325910f92f113ce23677
Fixed
3c3a307e8b7a0ebbc4d1e6b10898b52e15c0cd44
Database specific
Show details 
{
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.941"
        }
    ]
}

Affected versions

0.*
0.99
Release_1.*
Release_1.68
Release_1.7
Release_1.72
Release_1.80
Release_1.82
Release_1.90
Release_1.92
Release_1.921
Release_1.922
Release_1.924
Release_1.925
Release_1.926
Release_1.930
Release_1.940
Release_1.941

Database specific

vanir_signatures 
[
    {
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "length": 296.0,
            "function_hash": "253114117520710906708306885545795412856"
        },
        "id": "CVE-2026-82880-05e3bdb3",
        "target": {
            "function": "getParser",
            "file": "source/net/yacy/document/parser/mmParser.java"
        },
        "source": "https://github.com/yacy/yacy_search_server/commit/3c3a307e8b7a0ebbc4d1e6b10898b52e15c0cd44",
        "signature_version": "v1"
    },
    {
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "269894528396889290421345609015362374073",
                "63852848258733690195633855390551312856",
                "197466823696600968901206104621033784542",
                "329610203813327021758110752833970569693",
                "274237720760827054830947659873154679851",
                "242022797532493209716638083965128112006",
                "22299921081814358682207236430113121386",
                "220133595808515816858430264583907125017",
                "236110901352793652058129087261641857551",
                "83563450838181707931386806257969500754",
                "321660501725871082476785721227489543517",
                "218165324020684230914066271139045705229",
                "17715561314935330516065188604706131232",
                "62475332307317057559205485155857836021",
                "263270315049907440132877468465707824436"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-82880-186d2cff",
        "target": {
            "file": "source/net/yacy/document/parser/xml/opensearchdescriptionReader.java"
        },
        "source": "https://github.com/yacy/yacy_search_server/commit/3c3a307e8b7a0ebbc4d1e6b10898b52e15c0cd44",
        "signature_version": "v1"
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "length": 296.0,
            "function_hash": "253114117520710906708306885545795412856"
        },
        "id": "CVE-2026-82880-68e34e1f",
        "target": {
            "function": "getParser",
            "file": "source/net/yacy/document/parser/xml/opensearchdescriptionReader.java"
        },
        "source": "https://github.com/yacy/yacy_search_server/commit/3c3a307e8b7a0ebbc4d1e6b10898b52e15c0cd44",
        "signature_version": "v1"
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "length": 296.0,
            "function_hash": "253114117520710906708306885545795412856"
        },
        "id": "CVE-2026-82880-71c06c7e",
        "target": {
            "function": "getParser",
            "file": "source/net/yacy/document/parser/images/svgParser.java"
        },
        "source": "https://github.com/yacy/yacy_search_server/commit/3c3a307e8b7a0ebbc4d1e6b10898b52e15c0cd44",
        "signature_version": "v1"
    },
    {
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "334325006341034609252658010373122686125",
                "210643252108695771797813159560717573461",
                "197466823696600968901206104621033784542",
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                "274237720760827054830947659873154679851",
                "242022797532493209716638083965128112006",
                "22299921081814358682207236430113121386",
                "220133595808515816858430264583907125017",
                "236110901352793652058129087261641857551",
                "83563450838181707931386806257969500754",
                "321660501725871082476785721227489543517",
                "218165324020684230914066271139045705229",
                "17715561314935330516065188604706131232",
                "60466921694717550025193741167906379648",
                "4300665876233712408931547315213190618"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-82880-828664ac",
        "target": {
            "file": "source/net/yacy/document/parser/mmParser.java"
        },
        "source": "https://github.com/yacy/yacy_search_server/commit/3c3a307e8b7a0ebbc4d1e6b10898b52e15c0cd44",
        "signature_version": "v1"
    },
    {
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "120856314992910365580626304005466836586",
                "183550965096600777239221451601797241721",
                "197466823696600968901206104621033784542",
                "329610203813327021758110752833970569693",
                "274237720760827054830947659873154679851",
                "242022797532493209716638083965128112006",
                "22299921081814358682207236430113121386",
                "220133595808515816858430264583907125017",
                "236110901352793652058129087261641857551",
                "83563450838181707931386806257969500754",
                "321660501725871082476785721227489543517",
                "218165324020684230914066271139045705229",
                "17715561314935330516065188604706131232",
                "60466921694717550025193741167906379648",
                "4300665876233712408931547315213190618"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-82880-887f3fe5",
        "target": {
            "file": "source/net/yacy/document/parser/images/svgParser.java"
        },
        "source": "https://github.com/yacy/yacy_search_server/commit/3c3a307e8b7a0ebbc4d1e6b10898b52e15c0cd44",
        "signature_version": "v1"
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82880.json"
vanir_signatures_modified 
"2026-09-02T08:05:28Z"