Vulnerability-Lookup

CVE-2026-46603 (GCVE-0-2026-46603)

Vulnerability from cvelistv5 – Published: 2026-08-14 16:38 – Updated: 2026-08-14 19:36

Title

Excessive memory allocation during VP8L decoding in golang.org/x/image

Summary

VP8L decoding in golang.org/x/image/vp8l can allocate an excessive amount of memory when processing a crafted VP8L image containing many unused Huffman tree groups. This allows a remote attacker to cause a denial of service via memory exhaustion.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-14 19:36 UTC

CWE

CWE-789 - Memory Allocation with Excessive Size Value

Assigner

Go Google root

References

3 references

URL	Tags
https://go.dev/issue/80069
https://go.dev/cl/793460
https://pkg.go.dev/vuln/GO-2026-6222

Impacted products

1 product

Vendor	Product	Version	CPE status
golang.org/x/image	golang.org/x/image/vp8l	Affected: 0 , < 0.45.0 (semver)	guessed

Credits

Daniele Ballarini

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-46603",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-14T19:36:26.966791Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-789",
                "description": "CWE-789 Memory Allocation with Excessive Size Value",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-14T19:36:57.436Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "golang.org/x/image/vp8l",
          "product": "golang.org/x/image/vp8l",
          "programRoutines": [
            {
              "name": "decoder.decodeHuffmanGroups"
            },
            {
              "name": "decoder.decodeHuffmanTree"
            },
            {
              "name": "Decode"
            }
          ],
          "vendor": "golang.org/x/image",
          "versions": [
            {
              "lessThan": "0.45.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Daniele Ballarini"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "VP8L decoding in golang.org/x/image/vp8l can allocate an excessive amount of memory when processing a crafted VP8L image containing many unused Huffman tree groups. This allows a remote attacker to cause a denial of service via memory exhaustion."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-789: Memory Allocation with Excessive Size Value",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-14T16:38:16.879Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/issue/80069"
        },
        {
          "url": "https://go.dev/cl/793460"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-6222"
        }
      ],
      "title": "Excessive memory allocation during VP8L decoding in golang.org/x/image"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2026-46603",
    "datePublished": "2026-08-14T16:38:16.879Z",
    "dateReserved": "2026-05-15T17:35:00.814Z",
    "dateUpdated": "2026-08-14T19:36:57.436Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-46603",
      "date": "2026-09-16",
      "epss": "0.00417",
      "percentile": "0.35475"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-46603\",\"sourceIdentifier\":\"security@golang.org\",\"published\":\"2026-08-14T17:18:15.307\",\"lastModified\":\"2026-09-03T16:37:52.170\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"VP8L decoding in golang.org/x/image/vp8l can allocate an excessive amount of memory when processing a crafted VP8L image containing many unused Huffman tree groups. This allows a remote attacker to cause a denial of service via memory exhaustion.\"}],\"affected\":[{\"source\":\"security@golang.org\",\"affectedData\":[{\"vendor\":\"golang.org/x/image\",\"product\":\"golang.org/x/image/vp8l\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://pkg.go.dev\",\"packageName\":\"golang.org/x/image/vp8l\",\"programRoutines\":[{\"name\":\"decoder.decodeHuffmanGroups\"},{\"name\":\"decoder.decodeHuffmanTree\"},{\"name\":\"Decode\"}],\"versions\":[{\"version\":\"0\",\"lessThan\":\"0.45.0\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-08-14T19:36:26.966791Z\",\"id\":\"CVE-2026-46603\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-789\"}]}],\"references\":[{\"url\":\"https://go.dev/cl/793460\",\"source\":\"security@golang.org\"},{\"url\":\"https://go.dev/issue/80069\",\"source\":\"security@golang.org\"},{\"url\":\"https://pkg.go.dev/vuln/GO-2026-6222\",\"source\":\"security@golang.org\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-09-01T16:06:53+00:00",
      "cve": "CVE-2026-46603",
      "id": "CVE-2026-46603",
      "initial_release_date": "2026-08-14T16:38:16.879000+00:00",
      "product_status:known_affected": "2",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "golang.org/x/image/vp8l: golang.org/x/image/vp8l: Denial of Service via excessive memory allocation",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46603.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-09-08T00:09:29Z",
      "cve": "CVE-2026-46603",
      "id": "CVE-2026-46603",
      "initial_release_date": "2026-09-05T00:33:05Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-46603",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-46603.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-46603\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-14T19:36:26.966791Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-789\", \"description\": \"CWE-789 Memory Allocation with Excessive Size Value\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-14T19:36:50.887Z\"}}], \"cna\": {\"title\": \"Excessive memory allocation during VP8L decoding in golang.org/x/image\", \"credits\": [{\"lang\": \"en\", \"value\": \"Daniele Ballarini\"}], \"affected\": [{\"vendor\": \"golang.org/x/image\", \"product\": \"golang.org/x/image/vp8l\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"0.45.0\", \"versionType\": \"semver\"}], \"packageName\": \"golang.org/x/image/vp8l\", \"collectionURL\": \"https://pkg.go.dev\", \"defaultStatus\": \"unaffected\", \"programRoutines\": [{\"name\": \"decoder.decodeHuffmanGroups\"}, {\"name\": \"decoder.decodeHuffmanTree\"}, {\"name\": \"Decode\"}]}], \"references\": [{\"url\": \"https://go.dev/issue/80069\"}, {\"url\": \"https://go.dev/cl/793460\"}, {\"url\": \"https://pkg.go.dev/vuln/GO-2026-6222\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"VP8L decoding in golang.org/x/image/vp8l can allocate an excessive amount of memory when processing a crafted VP8L image containing many unused Huffman tree groups. This allows a remote attacker to cause a denial of service via memory exhaustion.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"CWE-789: Memory Allocation with Excessive Size Value\"}]}], \"providerMetadata\": {\"orgId\": \"1bb62c36-49e3-4200-9d77-64a1400537cc\", \"shortName\": \"Go\", \"dateUpdated\": \"2026-08-14T16:38:16.879Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-46603\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-14T19:36:57.436Z\", \"dateReserved\": \"2026-05-15T17:35:00.814Z\", \"assignerOrgId\": \"1bb62c36-49e3-4200-9d77-64a1400537cc\", \"datePublished\": \"2026-08-14T16:38:16.879Z\", \"assignerShortName\": \"Go\"}",
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    }
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}

ubuntu-cve-2026-46603

Vulnerability from osv_ubuntu

Published

2026-08-14 17:18

Modified

2026-08-19 11:05

Summary

Details

Severity

7.5 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-46603	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-46603	REPORT
	https://github.com/golang/go/issues/80069	REPORT
	https://go.dev/cl/793460	REPORT
	https://go.dev/issue/80069	REPORT
	https://pkg.go.dev/vuln/GO-2026-6222	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-golang-x-image-dev",
            "binary_version": "0.0~git20170523.0.426cfd8-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "golang-golang-x-image",
        "purl": "pkg:deb/ubuntu/golang-golang-x-image@0.0~git20170523.0.426cfd8-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0~git20170523.0.426cfd8-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-golang-x-image-dev",
            "binary_version": "0.0~git20200119.58c2397-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "golang-golang-x-image",
        "purl": "pkg:deb/ubuntu/golang-golang-x-image@0.0~git20200119.58c2397-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0~git20190703.d6a02ce-1",
        "0.0~git20200119.58c2397-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-golang-x-image-dev",
            "binary_version": "0.0~git20211028.6944b10-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "golang-golang-x-image",
        "purl": "pkg:deb/ubuntu/golang-golang-x-image@0.0~git20211028.6944b10-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0~git20200119.58c2397-1",
        "0.0~git20210628.a66eb64-1",
        "0.0~git20211028.6944b10-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-golang-x-image-dev",
            "binary_version": "0.15.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "golang-golang-x-image",
        "purl": "pkg:deb/ubuntu/golang-golang-x-image@0.15.0-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.7.0-1",
        "0.13.0-1",
        "0.14.0-1",
        "0.15.0-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-golang-x-image-dev",
            "binary_version": "0.35.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "golang-golang-x-image",
        "purl": "pkg:deb/ubuntu/golang-golang-x-image@0.35.0-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.18.0-1",
        "0.32.0-1",
        "0.35.0-1"
      ]
    }
  ],
  "aliases": [],
  "details": "VP8L decoding in golang.org/x/image/vp8l can allocate an excessive amount of memory when processing a crafted VP8L image containing many unused Huffman tree groups. This allows a remote attacker to cause a denial of service via memory exhaustion.",
  "id": "UBUNTU-CVE-2026-46603",
  "modified": "2026-08-19T11:05:25Z",
  "published": "2026-08-14T17:18:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-46603"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-46603"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/golang/go/issues/80069"
    },
    {
      "type": "REPORT",
      "url": "https://go.dev/cl/793460"
    },
    {
      "type": "REPORT",
      "url": "https://go.dev/issue/80069"
    },
    {
      "type": "REPORT",
      "url": "https://pkg.go.dev/vuln/GO-2026-6222"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "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": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-46603"
  ]
}

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.