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CVE-2026-112390

high

Pillow is a Python imaging library.

Vendor / product: Python — pillow

Pillow is a Python imaging library. From 7.2.0 until 13.0.0, Pillow can enter an infinite loop while determining the frame count of a MIC image. MicImageFile inherits TIFF frame traversal, but MicImageFile.tell reports the OLE stream index and its seek() resets TIFF frame state, so an embedded TIFF with at least three IFDs never advances. When an application with olefile installed reads n_frames or saves all frames from a crafted MIC file, the non-advancing traversal can hold a worker at full CPU indefinitely. This issue is fixed in version 13.0.0.

CVSS
7.5
7.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-10-19 21:17
Modified: 2026-10-23 17:01
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-27 07:04 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

python / pillow ≥7.2.0 <13.0.0

Weakness classification (CWE)

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://github.com/python-pillow/Pillow/security/advisories/GHSA-22hg-r758-rrw9
Vendor advisory: https://github.com/python-pillow/Pillow/security/advisories/GHSA-22hg-r758-rrw9
Patch / mitigation: https://github.com/python-pillow/Pillow/commit/26cb3ed061173b817b9ee4b6f507cb0e1e293218
Patch / mitigation: https://github.com/python-pillow/Pillow/security/advisories/GHSA-22hg-r758-rrw9
Patch / mitigation: https://github.com/python-pillow/Pillow/security/advisories/GHSA-22hg-r758-rrw9

References

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 07:04 UTC · record ↗

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