CVE-2026-25990: high-severity vulnerability in python-pillow Pillow
Pillow has an out-of-bounds write when loading PSD images
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.6epss 0.4%
Pillow is a Python imaging library. From 10.3.0 to before 12.1.1, an out-of-bounds write may be triggered when loading a specially crafted PSD image. This vulnerability is fixed in 12.1.1.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
python-pillow · PillowRelated CVEs — python-pillow Pillow
In the same product, most dangerous first.
CVE-2026-112900CRITICALPillow: Argument Injection in Ghostscript call, potentially leading into RCEEPSS 1.3%CVE-2026-112393CRITICALPillow: Heap buffer overflow in _tiffWriteProc when saving TIFF to BytesIOEPSS 1.0%CVE-2026-112403CRITICALPillow: Heap buffer overflow in ImagingJpegDecodeEPSS 0.9%CVE-2026-112398CRITICALPillow: Heap buffer overflow in FlashPix (FPX) JPEG decoding leads to code executionEPSS 0.7%CVE-2026-112396MEDIUMPillow: Heap use-after-free when encoding TIFF to an in-memory bufferEPSS 0.7%CVE-2026-40192HIGHPillow is vulnerable to a FITS GZIP decompression bombEPSS 0.7%
References
https://access.redhat.com/errata/RHSA-2026:10184https://access.redhat.com/errata/RHSA-2026:14873https://access.redhat.com/errata/RHSA-2026:14874https://access.redhat.com/errata/RHSA-2026:16174https://access.redhat.com/errata/RHSA-2026:19712https://access.redhat.com/errata/RHSA-2026:28385https://access.redhat.com/errata/RHSA-2026:3461https://access.redhat.com/errata/RHSA-2026:3462https://access.redhat.com/errata/RHSA-2026:4128https://access.redhat.com/errata/RHSA-2026:42644https://access.redhat.com/errata/RHSA-2026:4942https://access.redhat.com/errata/RHSA-2026:5168