CVE-2026-17459 (GCVE-0-2026-17459)

Vulnerability from cvelistv5 – Published: 2026-07-26 10:15 – Updated: 2026-07-26 15:39
VLAI
Title
perwendel spark SparkJava ExternalResourceHandler.jav staticFiles.externalLocation symlink
Summary
A vulnerability was determined in perwendel spark up to 2.9.4. This vulnerability affects the function staticFiles.externalLocation of the file src/main/java/spark/resource/ExternalResourceHandler.jav of the component SparkJava. Executing a manipulation can lead to symlink following. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
4.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/383321 vdb-entrytechnical-description
https://vuldb.com/vuln/383321/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-17459 third-party-advisory
https://vuldb.com/submit/862468 third-party-advisory
https://github.com/perwendel/spark/issues/1296 exploitissue-tracking
https://github.com/perwendel/spark/ product
Impacted products
Vendor Product Version
perwendel spark Affected: 2.9.0
Affected: 2.9.1
Affected: 2.9.2
Affected: 2.9.3
Affected: 2.9.4
    cpe:2.3:a:perwendel:spark:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
naixiao (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

{
  "containers": {
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      "affected": [
        {
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            "cpe:2.3:a:perwendel:spark:*:*:*:*:*:*:*:*"
          ],
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          "product": "spark",
          "vendor": "perwendel",
          "versions": [
            {
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              "version": "2.9.0"
            },
            {
              "status": "affected",
              "version": "2.9.1"
            },
            {
              "status": "affected",
              "version": "2.9.2"
            },
            {
              "status": "affected",
              "version": "2.9.3"
            },
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            }
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          "type": "reporter",
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        },
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        }
      ],
      "descriptions": [
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          "value": "A vulnerability was determined in perwendel spark up to 2.9.4. This vulnerability affects the function staticFiles.externalLocation of the file src/main/java/spark/resource/ExternalResourceHandler.jav of the component SparkJava. Executing a manipulation can lead to symlink following. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet."
        }
      ],
      "metrics": [
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      "problemTypes": [
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      "providerMetadata": {
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        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
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            "technical-description"
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          "url": "https://vuldb.com/vuln/383321"
        },
        {
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          "tags": [
            "signature",
            "permissions-required"
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          "url": "https://vuldb.com/vuln/383321/cti"
        },
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          "tags": [
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          ],
          "url": "https://vuldb.com/cve/CVE-2026-17459"
        },
        {
          "name": "Submit #862468 | GitHub spark V 2.9.4 SparkJava External Static Files Symlink Escape Allows Local File",
          "tags": [
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          "url": "https://vuldb.com/submit/862468"
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          "url": "https://github.com/perwendel/spark/issues/1296"
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          "time": "2026-07-25T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-07-26T14:14:59.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "perwendel spark SparkJava ExternalResourceHandler.jav staticFiles.externalLocation symlink",
      "x_generator": [
        "VulDB PVTS v202607"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-17459",
    "datePublished": "2026-07-26T10:15:09.381Z",
    "dateReserved": "2026-07-25T19:07:45.086Z",
    "dateUpdated": "2026-07-26T15:39:34.334Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}



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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.

Sightings

Author Source Type Date Other

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.