CVE-2026-112404 (GCVE-0-2026-112404)

Vulnerability from cvelistv5 – Published: 2026-10-19 21:27 – Updated: 2026-10-19 21:27
VLAI
Title
Pillow: OOB read in TiffDecode.c tile and RGBA paths leaks heap memory into pixels
Summary
Pillow is a Python imaging library. From 8.1.0 until 13.0.0, Pillow's TIFF tile and RGBA decode paths can read beyond row data produced by libtiff. In _decodeTile and the RGBA unpacker path, when Pillow and libtiff interpret duplicated PhotometricInterpretation or BitsPerSample tags differently, Pillow does not verify that the required input row fits inside the row libtiff produced, while the strip path has this validation. Loading pixels from such a crafted TIFF can expose adjacent heap data in output pixels or crash the process. This issue is fixed in version 13.0.0.
Severity
8.8 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7662 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
python-pillow Pillow Affected: >= 8.1.0, < 13.0.0
guessed Create a notification for this product.
Show details on NVD website
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{
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        {
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          "vendor": "python-pillow",
          "versions": [
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        }
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          "lang": "en",
          "value": "Pillow is a Python imaging library. From 8.1.0 until 13.0.0, Pillow\u0027s TIFF tile and RGBA decode paths can read beyond row data produced by libtiff. In _decodeTile and the RGBA unpacker path, when Pillow and libtiff interpret duplicated PhotometricInterpretation or BitsPerSample tags differently, Pillow does not verify that the required input row fits inside the row libtiff produced, while the strip path has this validation. Loading pixels from such a crafted TIFF can expose adjacent heap data in output pixels or crash the process. This issue is fixed in version 13.0.0."
        }
      ],
      "metrics": [
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            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-126",
              "description": "CWE-126: Buffer Over-read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T21:27:56.705Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-c6hw-5grf-ff96",
          "tags": [
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          ],
          "url": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-c6hw-5grf-ff96"
        },
        {
          "name": "https://github.com/python-pillow/Pillow/commit/1d4773e6cea0c4a2814e6d4cdc099bbcf56da6ce",
          "tags": [
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          ],
          "url": "https://github.com/python-pillow/Pillow/commit/1d4773e6cea0c4a2814e6d4cdc099bbcf56da6ce"
        },
        {
          "name": "https://github.com/python-pillow/Pillow/releases/tag/13.0.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/python-pillow/Pillow/releases/tag/13.0.0"
        }
      ],
      "source": {
        "advisory": "GHSA-c6hw-5grf-ff96",
        "discovery": "UNKNOWN"
      },
      "title": "Pillow: OOB read in TiffDecode.c tile and RGBA paths leaks heap memory into pixels"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-112404",
    "datePublished": "2026-10-19T21:27:56.705Z",
    "dateReserved": "2026-10-19T16:58:51.960Z",
    "dateUpdated": "2026-10-19T21:27:56.705Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
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      "date": "2026-10-20",
      "epss": "0.00291",
      "percentile": "0.20414"
    },
    "nvd": {
      "cve": {
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          {
            "affectedData": [
              {
                "product": "Pillow",
                "vendor": "python-pillow",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003e= 8.1.0, \u003c 13.0.0"
                  }
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            ],
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Pillow is a Python imaging library. From 8.1.0 until 13.0.0, Pillow\u0027s TIFF tile and RGBA decode paths can read beyond row data produced by libtiff. In _decodeTile and the RGBA unpacker path, when Pillow and libtiff interpret duplicated PhotometricInterpretation or BitsPerSample tags differently, Pillow does not verify that the required input row fits inside the row libtiff produced, while the strip path has this validation. Loading pixels from such a crafted TIFF can expose adjacent heap data in output pixels or crash the process. This issue is fixed in version 13.0.0."
          }
        ],
        "id": "CVE-2026-112404",
        "lastModified": "2026-10-19T22:17:07.900",
        "metrics": {
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 8.8,
                "baseSeverity": "HIGH",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "NONE",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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",
                "version": "4.0",
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                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
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              "type": "Secondary"
            }
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        "references": [
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          },
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            "url": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-c6hw-5grf-ff96"
          }
        ],
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        "vulnStatus": "Received",
        "weaknesses": [
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                "lang": "en",
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    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-10-19T23:05:04+00:00",
      "cve": "CVE-2026-112404",
      "id": "CVE-2026-112404",
      "initial_release_date": "2026-10-19T21:27:56.705000+00:00",
      "product_status:known_affected": "94",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "pillow: Pillow: Denial of Service via out-of-bounds read in TIFF decoding",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-112404.json",
      "version": "3"
    }
  }
}



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