CVE-2026-54060High· 7.5▾ TwilightA flaw was found in Pillow, a Python imaging library. When processing a specially crafted font file, the library's font compilation function does not adequately check for excessive memory allocation. This oversight allows a remote attacker…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 13.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.4%
0.4% → 0.4%
Last analysed / modified upstream
A flaw was found in Pillow, a Python imaging library. When processing a specially crafted font file, the library's font compilation function does not adequately check for excessive memory allocation. This oversight allows a remote attacker to trigger an unreasonable consumption of system memory, leading to a denial of service (DoS) for the application.
python-pillow: Pillow: Denial of Service via excessive memory allocation when processing font files — rated Important by Red Hat. Released 2026-07-06, updated 2026-09-21.
Affected:
Fixed:
No fix planned:
Not affected:
For details on how to apply this update, refer to Ansible Automation Platform documentation. https://access.redhat.com/errata/RHSA-2026:50319 Before applying this update, make sure all previously released errata relevant to your system have been applied.
For detailed instructions how to apply this update, refer to:
https://docs.redhat.com/en/documentation/red_hat_satellite/6.16/html/updating_red_hat_satellite/index https://access.redhat.com/errata/RHSA-2026:50223 For details on how to apply this update, refer to Ansible Automation Platform documentation. https://access.redhat.com/errata/RHSA-2026:50336
Affected packages:
pillow < 12.3.0Patched in:
pillow 12.3.0Connected by shared product, vendor, weakness, or advisory.
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