BIT-pillow-2026-54059

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/pillow/BIT-pillow-2026-54059.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-pillow-2026-54059
Aliases
Published
2026-07-08T11:34:09.383Z
Modified
2026-07-13T07:26:49.281845979Z
Summary
Pillow: PcfFontFile._load_bitmaps()`: `Image.frombytes()` called without `_decompression_bomb_check()` — bomb protection bypass via PCF font loading
Details

Pillow is a Python imaging library. Prior to 12.3.0, PIL/PcfFontFile.py loadbitmaps() read glyph dimensions from the PCF METRICS section and passed them directly to Image.frombytes() without calling Image.decompressionbomb_check(), allowing crafted PCF font data to cause excessive memory allocation. This issue is fixed in version 12.3.0.

Database specific 
{
    "severity": "High",
    "cpes": [
        "cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*"
    ]
}
References

Affected packages

Bitnami / pillow

Package

Name
pillow
Purl
pkg:bitnami/pillow

Severity

  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
12.3.0

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/pillow/BIT-pillow-2026-54059.json"