Vulnerability-Lookup

GHSA-GWV6-PQ6M-P3RQ

Vulnerability from github – Published: 2026-05-18 12:31 – Updated: 2026-05-29 17:23

Summary

SGLanG: Multimodal scheduler deserializes untrusted pickle data on 0.0.0.0 ROUTER socket

Details

SGLang's multimodal generation runtime scheduler's ROUTER socket binds to 0.0.0.0 by default and contains a sink that calls pickle.loads() on incoming messages, enabling RCE when exposed to the internet.

Severity

9.8 (Critical)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "sglang"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.5.5"
            },
            {
              "last_affected": "0.5.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-7301"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-29T17:23:09Z",
    "nvd_published_at": "2026-05-18T12:16:16Z",
    "severity": "CRITICAL"
  },
  "details": "SGLang\u0027s multimodal generation runtime scheduler\u0027s ROUTER socket binds to 0.0.0.0 by default and contains a sink that calls pickle.loads() on incoming messages, enabling RCE when exposed to the internet.",
  "id": "GHSA-gwv6-pq6m-p3rq",
  "modified": "2026-05-29T17:23:09Z",
  "published": "2026-05-18T12:31:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-7301"
    },
    {
      "type": "WEB",
      "url": "https://antiproof.ai/blog/three-rces-in-sglang"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/sgl-project/sglang"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sgl-project/sglang/tree/main/python/sglang"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "SGLanG: Multimodal scheduler deserializes untrusted pickle data on 0.0.0.0 ROUTER socket"
}

CVE-2026-7301 (GCVE-0-2026-7301)

Vulnerability from cvelistv5 – Published: 2026-05-18 10:38 – Updated: 2026-05-18 14:06

Title

CVE-2026-7301

Summary

SGLangs multimodal generation runtime scheduler's ROUTER socket binds to 0.0.0.0 by default and contains a sink that calls pickle.loads() on incoming messages, enabling RCE when exposed to the internet.

Severity

9.8 (Critical)


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

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

certcc

References

2 references

URL	Tags
https://github.com/sgl-project/sglang/tree/main/p…
https://antiproof.ai/blog/three-rces-in-sglang/

Impacted products

1 product

Vendor	Product	Version
SGLang	SGLang	Affected: 5.10

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-7301",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-18T14:06:17.378524Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-502",
                "description": "CWE-502 Deserialization of Untrusted Data",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-18T14:06:20.513Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "SGLang",
          "vendor": "SGLang",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "SGLangs multimodal generation runtime scheduler\u0027s ROUTER socket binds to 0.0.0.0 by default and contains a sink that calls pickle.loads() on incoming messages, enabling RCE when exposed to the internet."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-502: Deserialization of Untrusted Data",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-18T10:38:56.493Z",
        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
      },
      "references": [
        {
          "url": "https://github.com/sgl-project/sglang/tree/main/python/sglang"
        },
        {
          "url": "https://antiproof.ai/blog/three-rces-in-sglang/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "CVE-2026-7301",
      "x_generator": {
        "engine": "VINCE 3.0.40",
        "env": "prod",
        "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-7301"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2026-7301",
    "datePublished": "2026-05-18T10:38:56.493Z",
    "dateReserved": "2026-04-28T11:43:42.008Z",
    "dateUpdated": "2026-05-18T14:06:20.513Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-GWV6-PQ6M-P3RQ

CVE-2026-7301 (GCVE-0-2026-7301)

Tags

Sightings

Nomenclature