DSA-6357-1 pillow - security update

CSIRTS triage

What

Multiple vulnerabilities could result in denial of service or the execution of arbitrary code when processing malformed files.

Who is affected

Deployments of Pillow are affected.

Urgency

Remediation is urgent due to the potential for arbitrary code execution.

Action

Update to the latest version of Pillow.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source

Debian Security Advisories (INTL · vendor-psirt · site)

Severity

unknown

Published

2026-06-21

Exploitation

Not in CISA KEV at last sync

Original advisory: https://lists.debian.org/debian-security-announce/2026/msg00268.html

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

• Low exploitation riskCVE-2026-423080.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all scored CVEs.
• Low exploitation riskCVE-2026-423100.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all scored CVEs.
• Low exploitation riskCVE-2026-423110.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all scored CVEs.

Referenced CVEs

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