GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2026-27798 (GCVE-0-2026-27798)

Vulnerability from cvelistv5 – Published: 2026-02-25 23:18 – Updated: 2026-02-26 16:54
VLAI
Title
ImageMagick: Heap Buffer Over-read in WaveletDenoise when processing small images
Summary
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability occurs when processing an image with small dimension using the `-wavelet-denoise` operator. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
Severity
4 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-26 16:54 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
ImageMagick ImageMagick Affected: < 6.9.13-40
Affected: >= 7.0.0, < 7.1.2-15
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-27798",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-26T16:54:43.926790Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-26T16:54:57.532Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "ImageMagick",
          "vendor": "ImageMagick",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 6.9.13-40"
            },
            {
              "status": "affected",
              "version": "\u003e= 7.0.0, \u003c 7.1.2-15"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability occurs when processing an image with small dimension using the `-wavelet-denoise` operator. Versions 7.1.2-15 and 6.9.13-40 contain a patch."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125: Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-126",
              "description": "CWE-126: Buffer Over-read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-25T23:18:33.174Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-qpgx-jfcq-r59f",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-qpgx-jfcq-r59f"
        },
        {
          "name": "https://github.com/ImageMagick/ImageMagick/commit/0377e60b3c0d766bd7271221c95d9ee54f6a3738",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ImageMagick/ImageMagick/commit/0377e60b3c0d766bd7271221c95d9ee54f6a3738"
        },
        {
          "name": "https://github.com/dlemstra/Magick.NET/releases/tag/14.10.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/dlemstra/Magick.NET/releases/tag/14.10.3"
        }
      ],
      "source": {
        "advisory": "GHSA-qpgx-jfcq-r59f",
        "discovery": "UNKNOWN"
      },
      "title": "ImageMagick: Heap Buffer Over-read in WaveletDenoise when processing small images"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-27798",
    "datePublished": "2026-02-25T23:18:33.174Z",
    "dateReserved": "2026-02-24T02:31:33.266Z",
    "dateUpdated": "2026-02-26T16:54:57.532Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-27798",
      "date": "2026-09-17",
      "epss": "0.00137",
      "percentile": "0.03464"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-27798\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-02-26T00:16:25.193\",\"lastModified\":\"2026-06-17T10:27:42.093\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability occurs when processing an image with small dimension using the `-wavelet-denoise` operator. Versions 7.1.2-15 and 6.9.13-40 contain a patch.\"},{\"lang\":\"es\",\"value\":\"ImageMagick es un software libre y de c\u00f3digo abierto utilizado para editar y manipular im\u00e1genes digitales. Antes de las versiones 7.1.2-15 y 6.9.13-40, ocurre una vulnerabilidad de lectura excesiva del b\u00fafer de pila al procesar una imagen con dimensiones peque\u00f1as utilizando el operador -wavelet-denoise. Las versiones 7.1.2-15 y 6.9.13-40 contienen un parche.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"ImageMagick\",\"product\":\"ImageMagick\",\"versions\":[{\"version\":\"\u003c 6.9.13-40\",\"status\":\"affected\"},{\"version\":\"\u003e= 7.0.0, \u003c 7.1.2-15\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":4.0,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.5,\"impactScore\":1.4},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.2}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-02-26T16:54:43.926790Z\",\"id\":\"CVE-2026-27798\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"},{\"lang\":\"en\",\"value\":\"CWE-126\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.9.13-40\",\"matchCriteriaId\":\"C6F44A65-1733-4752-AAD0-BCCC7BDBC877\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.0.0-0\",\"versionEndExcluding\":\"7.1.2-15\",\"matchCriteriaId\":\"6AFFD439-1068-4B6F-AE01-724AC62CDCEA\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:dlemstra:magick.net:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"14.10.3\",\"matchCriteriaId\":\"F5891403-B079-4CD7-BA2A-361146A2F475\"}]}]}],\"references\":[{\"url\":\"https://github.com/ImageMagick/ImageMagick/commit/0377e60b3c0d766bd7271221c95d9ee54f6a3738\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-qpgx-jfcq-r59f\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://github.com/dlemstra/Magick.NET/releases/tag/14.10.3\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Product\",\"Release Notes\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-17T16:30:06+00:00",
      "cve": "CVE-2026-27798",
      "id": "CVE-2026-27798",
      "initial_release_date": "2026-02-25T23:18:33.174000+00:00",
      "product_status:known_affected": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "ImageMagick: ImageMagick: Information disclosure via heap buffer over-read when processing images",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27798.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-15T05:25:01Z",
      "cve": "CVE-2026-27798",
      "id": "CVE-2026-27798",
      "initial_release_date": "2026-02-28T00:24:31Z",
      "product_status:known_affected": "54",
      "product_status:known_not_affected": "52",
      "product_status:recommended": "248",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-27798",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-27798.json",
      "version": "10"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-27798\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-02-26T16:54:43.926790Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-02-26T16:54:51.464Z\"}}], \"cna\": {\"title\": \"ImageMagick: Heap Buffer Over-read in WaveletDenoise when processing small images\", \"source\": {\"advisory\": \"GHSA-qpgx-jfcq-r59f\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"LOW\"}}], \"affected\": [{\"vendor\": \"ImageMagick\", \"product\": \"ImageMagick\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 6.9.13-40\"}, {\"status\": \"affected\", \"version\": \"\u003e= 7.0.0, \u003c 7.1.2-15\"}]}], \"references\": [{\"url\": \"https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-qpgx-jfcq-r59f\", \"name\": \"https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-qpgx-jfcq-r59f\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/ImageMagick/ImageMagick/commit/0377e60b3c0d766bd7271221c95d9ee54f6a3738\", \"name\": \"https://github.com/ImageMagick/ImageMagick/commit/0377e60b3c0d766bd7271221c95d9ee54f6a3738\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/dlemstra/Magick.NET/releases/tag/14.10.3\", \"name\": \"https://github.com/dlemstra/Magick.NET/releases/tag/14.10.3\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability occurs when processing an image with small dimension using the `-wavelet-denoise` operator. Versions 7.1.2-15 and 6.9.13-40 contain a patch.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-125\", \"description\": \"CWE-125: Out-of-bounds Read\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-126\", \"description\": \"CWE-126: Buffer Over-read\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-02-25T23:18:33.174Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-27798\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-02-26T16:54:57.532Z\", \"dateReserved\": \"2026-02-24T02:31:33.266Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-02-25T23:18:33.174Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


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.