Vulnerability-Lookup

CVE-2026-32773 (GCVE-0-2026-32773)

Vulnerability from cvelistv5 – Published: 2026-09-02 10:51 – Updated: 2026-09-02 12:43

Title

Apache Spark: XSS Vulnerability in Spark Web 3.5.4

Summary

There is a lack of XSS escaping in the Spark History Server prior to 3.5.8 which allows a malicious Spark job to generate arbitrary unescaped frontend code which could lead to a minimal privilege escalation in browser. Users are encouraged to upgrade to Spark 3.5.8 or later. This CVE is marked as "low" since the path to exploit requires both relatively high permissions (ability to launch a Spark job) and requires tricking a user with higher permissions to log in and visit the Spark history web page. Users are encouraged to upgrade their Spark history servers to Spark 3.5.8 or later.

Severity

6.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-02 12:43 UTC

CWE

CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

Assigner

apache mitre root

References

2 references

URL	Tags
https://lists.apache.org/thread/k36prh3oxl1z6ov7w…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/09/01/4

Impacted products

1 product

Vendor	Product	Version	CPE status
Apache Software Foundation	Apache Spark	Affected: 3.0.0 , < 3.5.8 (semver)	guessed

Credits

Yann Gourio

Show details on NVD website

JSON

To clipboard

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bit-spark-2026-32773

Vulnerability from bitnami_vulndb

Published

2026-09-08 08:20

Modified

2026-09-09 09:13

Summary

Apache Spark: XSS Vulnerability in Spark Web 3.5.4

Details

This CVE is marked as "low" since the path to exploit requires both relatively high permissions (ability to launch a Spark job) and requires tricking a user with higher permissions to log in and visit the Spark history web page.

Users are encouraged to upgrade their Spark history servers to Spark 3.5.8 or later.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "spark",
        "purl": "pkg:bitnami/spark"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.5.8"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-32773"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:apache:spark:*:*:*:*:*:maven:*:*"
    ],
    "severity": "Medium"
  },
  "details": "There is a lack of XSS escaping in the Spark History Server prior to 3.5.8 which allows a malicious Spark job to generate arbitrary unescaped frontend code which could lead to a minimal privilege escalation in browser. Users are encouraged to upgrade to Spark 3.5.8 or later.\n\nThis CVE is marked as \"low\" since the path to exploit requires both relatively high permissions (ability to launch a Spark job) and requires tricking a user with higher permissions to log in and visit the Spark history web page.\n\nUsers are encouraged to upgrade their Spark history servers to Spark 3.5.8 or later.",
  "id": "BIT-spark-2026-32773",
  "modified": "2026-09-09T09:13:23.794Z",
  "published": "2026-09-08T08:20:03.756Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "http://www.openwall.com/lists/oss-security/2026/09/01/4"
    },
    {
      "type": "ADVISORY",
      "url": "https://lists.apache.org/thread/k36prh3oxl1z6ov7w8rpmfnt07hmzw3v"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32773"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Apache Spark: XSS Vulnerability in Spark Web 3.5.4"
}

FKIE_CVE-2026-32773

Vulnerability from fkie_nvd - Published: 2026-09-02 11:17 - Updated: 2026-09-08 13:04

Severity

6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Summary

References

	URL	Tags
	security@apache.org	https://lists.apache.org/thread/k36prh3oxl1z6ov7w8rpmfnt07hmzw3v	Mailing List, Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/09/01/4	Mailing List, Third Party Advisory

Impacted products

	Vendor	Product	Version
	apache	spark	*

JSON

To clipboard

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}

GHSA-9437-39HJ-3C93

Vulnerability from github – Published: 2026-09-02 12:31 – Updated: 2026-09-02 15:34

Details

Users are encouraged to upgrade their Spark history servers to Spark 3.5.8 or later.

Severity

6.1 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-32773"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-80"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-02T11:17:20Z",
    "severity": "MODERATE"
  },
  "details": "There is a lack of XSS escaping in the Spark History Server prior to 3.5.8 which allows a malicious Spark job to generate arbitrary unescaped frontend code which could lead to a minimal privilege escalation in browser. Users are encouraged to upgrade to Spark 3.5.8 or later.\n\nThis CVE is marked as \"low\" since the path to exploit requires both relatively high permissions (ability to launch a Spark job) and requires tricking a user with higher permissions to log in and visit the Spark history web page.\n\nUsers are encouraged to upgrade their Spark history servers to Spark 3.5.8 or later.",
  "id": "GHSA-9437-39hj-3c93",
  "modified": "2026-09-02T15:34:41Z",
  "published": "2026-09-02T12:31:29Z",
  "references": [
    {
      "type": "ADVISORY",
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    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/k36prh3oxl1z6ov7w8rpmfnt07hmzw3v"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/09/01/4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-32773 (GCVE-0-2026-32773)

bit-spark-2026-32773

Vulnerability from bitnami_vulndb

FKIE_CVE-2026-32773

GHSA-9437-39HJ-3C93

Tags

Sightings

Nomenclature