Vulnerability-Lookup

GHSA-W3RX-R6R6-PGPR

Vulnerability from github – Published: 2026-06-10 15:31 – Updated: 2026-08-07 20:55

Summary

image-size: ICNS parser allows denial of service through an infinite loop

Details

image-size through 2.0.2 contains a denial of service vulnerability that allows remote attackers to permanently block the Node.js event loop by supplying a specially crafted ICNS image buffer. Attackers can craft an ICNS buffer containing valid magic bytes and a zero-valued entry length field to trigger an infinite loop in the ICNS parser, as the offset is never incremented when the entry length field is 0, causing the while loop condition to remain true indefinitely.

Severity

7.5 (High)


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

8.7 (High)


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

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "image-size"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "2.0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-71330"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-07T20:55:24Z",
    "nvd_published_at": "2026-06-10T14:16:30Z",
    "severity": "HIGH"
  },
  "details": "image-size through 2.0.2 contains a denial of service vulnerability that allows remote attackers to permanently block the Node.js event loop by supplying a specially crafted ICNS image buffer. Attackers can craft an ICNS buffer containing valid magic bytes and a zero-valued entry length field to trigger an infinite loop in the ICNS parser, as the offset is never incremented when the entry length field is 0, causing the while loop condition to remain true indefinitely.",
  "id": "GHSA-w3rx-r6r6-pgpr",
  "modified": "2026-08-07T20:55:24Z",
  "published": "2026-06-10T15:31:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71330"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/image-size/image-size"
    },
    {
      "type": "WEB",
      "url": "https://joshua.hu/image-size-infinite-loop-dos-vulnerabilities"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20260224152152/https://github.com/image-size/image-size/pull/439"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/image-size-denial-of-service-via-malformed-icns-image-parsing"
    }
  ],
  "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:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ],
  "summary": "image-size: ICNS parser allows denial of service through an infinite loop"
}

CVE-2025-71330 (GCVE-0-2025-71330)

Vulnerability from cvelistv5 – Published: 2026-06-10 13:02 – Updated: 2026-07-14 22:26 X_Open Source Unsupported When Assigned

Title

image-size 2.0.2 Denial of Service via Malformed ICNS Image Parsing

Summary

Severity

8.7 (High)


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

7.5 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-10 14:04 UTC

CWE

CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://joshua.hu/image-size-infinite-loop-dos-vu…	technical-descriptionexploit
https://web.archive.org/web/20260224152152/https:…	issue-tracking
https://www.vulncheck.com/advisories/image-size-d…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
image-size	image-size	Affected: 1.1.0 , ≤ 1.2.1 (semver) Affected: 2.0.0 , ≤ 2.0.2 (semver) cpe:2.3:a:image-size:image-size::::::node.js::* cpe:2.3:a:image-size:image-size::::::node.js::*

Date Public

2025-10-09 00:00

Credits

Preston Price (@prestonprice57)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
        "metrics": [
          {
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                "id": "CVE-2025-71330",
                "options": [
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                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T14:04:41.971699Z",
                "version": "2.0.3"
              },
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          "shortName": "CISA-ADP"
        },
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      }
    ],
    "cna": {
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        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/image-size",
          "product": "image-size",
          "repo": "https://github.com/image-size/image-size",
          "vendor": "image-size",
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              "lessThanOrEqual": "1.2.1",
              "status": "affected",
              "version": "1.1.0",
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            },
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              "status": "affected",
              "version": "2.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:image-size:image-size:*:*:*:*:*:node.js:*:*",
                  "versionEndIncluding": "1.2.1",
                  "versionStartIncluding": "1.1.0",
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                },
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      "metrics": [
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            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
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          "url": "https://web.archive.org/web/20260224152152/https://github.com/image-size/image-size/pull/439"
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        }
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    "datePublished": "2026-06-10T13:02:04.764Z",
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    "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.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.