Vulnerability-Lookup

GHSA-49V6-P72M-P687

Vulnerability from github – Published: 2026-01-27 09:30 – Updated: 2026-01-27 09:30

Details

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in yacy yacy_search_server (source/net/yacy/http/servlets modules). This vulnerability is associated with program files YaCyDefaultServlet.Java.

This issue affects yacy_search_server.

Severity ?

6.9 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/AU:Y/R:U/V:D/RE:M/U:Amber

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{
  "affected": [],
  "aliases": [
    "CVE-2026-24824"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-27T09:15:53Z",
    "severity": "MODERATE"
  },
  "details": "Improper Neutralization of Input During Web Page Generation (XSS or \u0027Cross-site Scripting\u0027) vulnerability in yacy yacy_search_server (source/net/yacy/http/servlets modules). This vulnerability is associated with program files YaCyDefaultServlet.Java.\n\nThis issue affects yacy_search_server.",
  "id": "GHSA-49v6-p72m-p687",
  "modified": "2026-01-27T09:30:31Z",
  "published": "2026-01-27T09:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24824"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yacy/yacy_search_server/pull/722"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/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:Y/R:U/V:D/RE:M/U:Amber",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-24824 (GCVE-0-2026-24824)

Vulnerability from cvelistv5 – Published: 2026-01-27 09:01 – Updated: 2026-01-27 16:58

Title

A XSS in yacy/yacy_search_server

Summary

Severity ?

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/AU:Y/R:U/V:D/RE:M/U:Amber

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Assigner

GovTech CSG

References

URL

Tags

https://github.com/yacy/yacy_search_server/pull/722

patch

Impacted products

	Vendor	Product	Version
	yacy	yacy_search_server	Affected: 0 , ≤ 1.92 (git)

Credits

TITAN Team (titancaproject@gmail.com)

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-24824",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-27T16:58:16.857470Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-27T16:58:24.836Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/yacy/yacy_search_server",
          "defaultStatus": "affected",
          "modules": [
            "source/net/yacy/http/servlets"
          ],
          "product": "yacy_search_server",
          "programFiles": [
            "YaCyDefaultServlet.java"
          ],
          "vendor": "yacy",
          "versions": [
            {
              "lessThanOrEqual": "1.92",
              "status": "affected",
              "version": "0",
              "versionType": "git"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "TITAN Team (titancaproject@gmail.com)"
        }
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      "descriptions": [
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          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
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            }
          ],
          "value": "Improper Neutralization of Input During Web Page Generation (XSS or \u0027Cross-site Scripting\u0027) vulnerability in yacy yacy_search_server (source/net/yacy/http/servlets modules). This vulnerability is associated with program files YaCyDefaultServlet.Java.\n\nThis issue affects yacy_search_server."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "YES",
            "Recovery": "USER",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "AMBER",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "NONE",
            "valueDensity": "DIFFUSE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/AU:Y/R:U/V:D/RE:M/U:Amber",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "MODERATE"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
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      "problemTypes": [
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          "descriptions": [
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              "lang": "en",
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            }
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      "providerMetadata": {
        "dateUpdated": "2026-01-27T09:01:06.551Z",
        "orgId": "1a37b84a-8e51-4525-b3d6-87e2fae01dbd",
        "shortName": "GovTech CSG"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/yacy/yacy_search_server/pull/722"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "A XSS in yacy/yacy_search_server",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1a37b84a-8e51-4525-b3d6-87e2fae01dbd",
    "assignerShortName": "GovTech CSG",
    "cveId": "CVE-2026-24824",
    "datePublished": "2026-01-27T09:01:06.551Z",
    "dateReserved": "2026-01-27T08:59:05.366Z",
    "dateUpdated": "2026-01-27T16:58:24.836Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-49V6-P72M-P687

CVE-2026-24824 (GCVE-0-2026-24824)

Tags

Sightings

Nomenclature