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DEBIAN-CVE-2026-40192

Type: advisorySource: OSV1 source record

Pillow is a Python imaging library. Versions 10.3.0 through 12.1.1 did not limit the amount of GZIP-compressed data read when decoding a FITS image, making them vulnerable to decompression bomb attacks. A specially crafted FITS file could cause unbounded memory consumption, leading to denial of service (OOM crash or severe performance degradation). If users are unable to immediately upgrade, they should only open specific image formats, excluding FITS, as a workaround.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-40192

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-40192

pillow

Source reference: /affected/0/package/name

Affected versions
11.1.0-5

Source reference: /affected/0/versions

11.1.0-5+deb13u1

Source reference: /affected/0/versions

Fixed versions
11.1.0-5+deb13u2

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

pillow

Source reference: /affected/1/package/name

Affected versions
11.1.0-5

Source reference: /affected/1/versions

11.2.1-1

Source reference: /affected/1/versions

11.3.0-1

Source reference: /affected/1/versions

12.0.0-1

Source reference: /affected/1/versions

12.1.0-1

Source reference: /affected/1/versions

12.1.1-1

Source reference: /affected/1/versions

12.1.1-2

Source reference: /affected/1/versions

Fixed versions
12.2.0-1

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "11.1.0-5+deb13u2"
          }
        ]
      }
    ],
    "package": {
      "name": "pillow",
      "purl": "pkg:deb/debian/pillow?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "11.1.0-5",
      "11.1.0-5+deb13u1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-40192.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "12.2.0-1"
          }
        ]
      }
    ],
    "package": {
      "name": "pillow",
      "purl": "pkg:deb/debian/pillow?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "11.1.0-5",
      "11.2.1-1",
      "11.3.0-1",
      "12.0.0-1",
      "12.1.0-1",
      "12.1.1-1",
      "12.1.1-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-40192.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#56018 · Revision 1
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Publisher date
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