CVE-2026-42310 (GCVE-0-2026-42310)

Vulnerability from cvelistv5 – Published: 2026-05-09 04:10 – Updated: 2026-05-09 04:10
VLAI?
Title
Pillow: PDF Parsing Trailer Infinite Loop (DoS)
Summary
Pillow is a Python imaging library. From version 4.2.0 to before version 12.2.0, an attacker can supply a malicious PDF that causes the process to hang indefinitely, consuming 100% CPU and making the application unresponsive. This issue has been patched in version 12.2.0.
Severity ?
5.1 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
Impacted products
Vendor Product Version
python-pillow Pillow Affected: >= 4.2.0, < 12.2.0
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        }
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              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2026-05-09T04:10:48.395Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
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          "tags": [
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          "url": "https://github.com/python-pillow/Pillow/releases/tag/12.2.0"
        }
      ],
      "source": {
        "advisory": "GHSA-r73j-pqj5-w3x7",
        "discovery": "UNKNOWN"
      },
      "title": "Pillow: PDF Parsing Trailer Infinite Loop (DoS)"
    }
  },
  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
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    "datePublished": "2026-05-09T04:10:48.395Z",
    "dateReserved": "2026-04-26T12:37:18.169Z",
    "dateUpdated": "2026-05-09T04:10:48.395Z",
    "state": "PUBLISHED"
  },
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  }
}


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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.

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  • 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.
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  • 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.



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