Vulnerability-Lookup

GHSA-W3RX-R6R6-PGPR

Vulnerability from github – Published: 2026-06-10 15:31 – Updated: 2026-06-10 15:31

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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2025-71330"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "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": "2026-06-10T15:31:30Z",
  "published": "2026-06-10T15:31:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71330"
    },
    {
      "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"
    }
  ]
}

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

Vulnerability from cvelistv5 – Published: 2026-06-10 13:02 – Updated: 2026-06-10 14:05 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 (v2.0.3)

CWE

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

Assigner

VulnCheck

References

3 references

URL	Tags
https://joshua.hu/image-size-infinite-loop-dos-vu…	technical-descriptionexploit
https://web.archive.org/web/20260224152152/https:…	patch
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)

Date Public

2025-10-09 00:00

Credits

Preston Price (@prestonprice57)

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-71330",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T14:04:41.971699Z",
                "version": "2.0.3"
              },
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        "providerMetadata": {
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          "shortName": "CISA-ADP"
        },
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    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/image-size",
          "product": "image-size",
          "repo": "https://github.com/image-size/image-size",
          "vendor": "image-size",
          "versions": [
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              "status": "affected",
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            },
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        }
      ],
      "metrics": [
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            "vulnAvailabilityImpact": "HIGH",
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            "vulnerabilityResponseEffort": "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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        }
      ],
      "source": {
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    "datePublished": "2026-06-10T13:02:04.764Z",
    "dateReserved": "2026-06-10T12:57:20.193Z",
    "dateUpdated": "2026-06-10T14:05:08.872Z",
    "state": "PUBLISHED"
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}

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-W3RX-R6R6-PGPR

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

Tags

Sightings

Nomenclature