CVE-2025-62593 (GCVE-0-2025-62593)

Vulnerability from cvelistv5 – Published: 2025-11-26 22:28 – Updated: 2026-10-01 18:07
VLAI CISA Previdian
Title
Ray is vulnerable to RCE via Safari & Firefox Browsers through DNS Rebinding Attack
Summary
Ray is an AI compute engine. Prior to version 2.52.0, developers working with Ray as a development tool can be exploited via a critical RCE vulnerability exploitable via Firefox and Safari. This vulnerability is due to an insufficient guard against browser-based attacks, as the current defense uses the User-Agent header starting with the string "Mozilla" as a defense mechanism. This defense is insufficient as the fetch specification allows the User-Agent header to be modified. Combined with a DNS rebinding attack against the browser, and this vulnerability is exploitable against a developer running Ray who inadvertently visits a malicious website, or is served a malicious advertisement (malvertising). This issue has been patched in version 2.52.0.
Severity
9.4 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 03:55 UTC
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
  • CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7613 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
ray-project ray Affected: < 2.52.0
guessed Create a notification for this product.
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: dbcc7200-bedc-43a5-a884-5faab5df0c56

Vulnerability ID: CVE-2025-62593

Status: Confirmed

Status Updated: 2026-08-18 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-08-18
Asserted: 2026-08-18
Scope
Notes: Ray-Project Ray Code Injection Vulnerability | Affected: Ray-Project / Ray | Description: Ray-Project Ray contains a code injection vulnerability that could allow remote code execution. Developers using Ray as a development tool may be exposed to this vulnerability exploitable through Firefox and Safari. | Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. | Due date: 2026-08-21 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://github.com/ray-project/ray/security/advisories/GHSA-q279-jhrf-cc6v ; https://github.com/ray-project/ray/commit/70e7c72780bdec075dba6cad1afe0832772bfe09 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2025-62593
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-94 CWE-352
Feed CISA Known Exploited Vulnerabilities Catalog
Product Ray
Due Date 2026-08-21
Date Added 2026-08-18
Vendorproject Ray-Project
Vulnerabilityname Ray-Project Ray Code Injection Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-08-17 15:00 UTC | Updated: 2026-08-17 15:00 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: a2123a01-1583-46af-afdd-0f872cd4307d

Vulnerability ID: CVE-2025-62593

Status: Confirmed

Status Updated: 2026-08-18 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-08-18
Asserted: 2026-08-18
Scope
Notes: Ray is vulnerable to RCE via Safari & Firefox Browsers through DNS Rebinding Attack | Affected: ray-project / ray | CVSS: 9.4 (CRITICAL) | EPSS: 0.00369 | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Ray is vulnerable to RCE via Safari & Firefox Browsers through DNS Rebinding Attack
Vendor ray-project
Product ray
Added Date 2026-08-18T00:00:00.000Z
Cvss Score 9.4
Epss Score 0.00369
Cvss Severity CRITICAL
Epss Percentile 0.30029
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-08-17 15:00 UTC | Updated: 2026-08-17 15:00 UTC
Show details on NVD website
To clipboard 

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                "subIntegrityImpact": "HIGH",
                "userInteraction": "PASSIVE",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
                "version": "4.0",
                "vulnAvailabilityImpact": "HIGH",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "HIGH"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-94",
                  "description": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-352",
                  "description": "CWE-352: Cross-Site Request Forgery (CSRF)",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-11-26T22:28:28.577Z",
            "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
            "shortName": "GitHub_M"
          },
          "references": [
            {
              "name": "https://github.com/ray-project/ray/security/advisories/GHSA-q279-jhrf-cc6v",
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://github.com/ray-project/ray/security/advisories/GHSA-q279-jhrf-cc6v"
            },
            {
              "name": "https://github.com/ray-project/ray/commit/70e7c72780bdec075dba6cad1afe0832772bfe09",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/ray-project/ray/commit/70e7c72780bdec075dba6cad1afe0832772bfe09"
            }
          ],
          "source": {
            "advisory": "GHSA-q279-jhrf-cc6v",
            "discovery": "UNKNOWN"
          },
          "title": "Ray is vulnerable to RCE via Safari \u0026 Firefox Browsers through DNS Rebinding Attack"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2025-62593",
        "datePublished": "2025-11-26T22:28:28.577Z",
        "dateReserved": "2025-10-16T19:24:37.266Z",
        "dateUpdated": "2026-10-01T18:07:54.129Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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