CVE-2026-25990
Pillow PSD loader: out-of-bounds write may crash or memory corruption.
Is CVE-2026-25990 being exploited?
Not confirmed. CVE-2026-25990 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.37% probability of exploitation in the next 30 days.
How severe is CVE-2026-25990?
CVE-2026-25990 is rated High with a CVSS score of 8.9. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-25990?
Yes. A fix has been recorded for CVE-2026-25990. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-25990 affect?
CVE-2026-25990 affects Pillow (Python Imaging Library) versions 10.3.0–12.1.0. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-25990?
Upgrade to Pillow 12.1.1+
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Crash or memory overwrite during PSD load; could lead to denial of service or potential code execution.
Patch when possible
- affected>= 10.3.0 and < 12.1.1
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.