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Pillow `BdfFontFile`: `Image.new()` called without `_decompression_bomb_check()` — bomb protection bypass via font loading
Pillow `BdfFontFile`: `Image.new()` called without `_decompression_bomb_check()` — bomb protection bypass via font loading
Affected packages
- pillow— before 12.3.0
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-45hq-cxwh-f6vc
- https://nvd.nist.gov/vuln/detail/CVE-2026-55379
- https://github.com/python-pillow/Pillow/commit/0a263e6264aa5399988d9acd3bbfbca2ca3ec77d
- https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2026-2255.yaml
- https://github.com/python-pillow/Pillow
- https://github.com/python-pillow/Pillow/blob/main/docs/releasenotes/12.3.0.rst
Structured record: https://osv.dev/vulnerability/GHSA-45hq-cxwh-f6vc
Recommended response stack
Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→
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