Vulnerability-Lookup

GHSA-GC6Q-CWCJ-3VH9

Vulnerability from github – Published: 2026-06-08 15:33 – Updated: 2026-06-12 19:06

Summary

Routinator crashes when sending a maliciously crafted select-asn query parameter

Details

When sending a specifically crafted non-UTF-8 string as select-asn query parameter to the /api/v1/origins endpoint, Routinator crashes.

This only affects users who allow API access from untrusted networks.

Severity

7.5 (High)


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

8.2 (High)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H

Show details on source website

JSON

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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.15.1"
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "routinator"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.15.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-49234"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-12T19:06:21Z",
    "nvd_published_at": "2026-06-08T15:16:48Z",
    "severity": "HIGH"
  },
  "details": "When sending a specifically crafted non-UTF-8 string as select-asn query parameter to the /api/v1/origins endpoint, Routinator crashes. \n\nThis only affects users who allow API access from untrusted networks.",
  "id": "GHSA-gc6q-cwcj-3vh9",
  "modified": "2026-06-12T19:06:21Z",
  "published": "2026-06-08T15:33:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49234"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/NLnetLabs/routinator"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NLnetLabs/routinator/releases/tag/v0.15.2"
    },
    {
      "type": "WEB",
      "url": "https://www.nlnetlabs.nl/downloads/routinator/CVE-2026-49234.txt"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Routinator crashes when sending a maliciously crafted select-asn query parameter"
}

CVE-2026-49234 (GCVE-0-2026-49234)

Vulnerability from cvelistv5 – Published: 2026-06-08 12:58 – Updated: 2026-06-08 15:39

Title

Routinator crashes on specifically crafted ASN strings in the API

Summary

When sending a specifically crafted non-UTF-8 string as select-asn query parameter to the /api/v1/origins endpoint, Routinator crashes. This only affects users who allow API access from untrusted networks.

Severity

8.2 (High)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-08 15:39 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

NLnet Labs Scorecard

References

1 reference

URL	Tags
https://www.nlnetlabs.nl/downloads/routinator/CVE…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
NLnet Labs	Routinator	Unaffected: 0.15.2 , < * (semver)

Date Public

2026-06-08 00:00

Credits

X41 D-Sec GmbH

Show details on NVD website

JSON

To clipboard

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        "metrics": [
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            "other": {
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                "id": "CVE-2026-49234",
                "options": [
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                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-08T15:39:20.775375Z",
                "version": "2.0.3"
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          "type": "finder",
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            "baseSeverity": "HIGH",
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          "time": "2026-03-28T00:00:00.000Z",
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    "dateReserved": "2026-05-28T08:28:56.664Z",
    "dateUpdated": "2026-06-08T15:39:39.130Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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.
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GHSA-GC6Q-CWCJ-3VH9

CVE-2026-49234 (GCVE-0-2026-49234)

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