ALPINE-CVE-2021-28678 — Vulnetix

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ALPINE-CVE-2021-28678 PUBLISHED CVSS 5.5 MEDIUM

An issue was discovered in Pillow before 8.2.0. For BLP data, BlpImagePlugin did not properly check that reads (after jumping to file offsets) returned data. This could lead to a DoS where the decoder could be run a large number of times on empty data.

Risk Scores

CVSS v3.1

5.5

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected Products

Vendor	Product	Versions
Alpine:v3.14	py3-pillow	0, 7.1.1-r0, 7.1.2-r0
Alpine:v3.15	py3-pillow	0, 7.1.1-r0, 7.1.2-r0

Timeline

Jun 2, 2021 CVE Published
Nov 19, 2025 CVE Updated
Apr 30, 2026 Distribution Patch

References

https://security.alpinelinux.org/vuln/CVE-2021-28678 advisory

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