High severity7.5NVD Advisory· Published Jun 2, 2021· Updated Jun 17, 2026
CVE-2021-28676
CVE-2021-28676
Description
An issue was discovered in Pillow before 8.2.0. For FLI data, FliDecode did not properly check that the block advance was non-zero, potentially leading to an infinite loop on load.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
pillowPyPI | < 8.2.0 | 8.2.0 |
Affected products
11- Pillow/Pillowdescription
- osv-coords10 versionspkg:bitnami/pillowpkg:pypi/pillowpkg:rpm/almalinux/python3-pillowpkg:rpm/opensuse/python-Pillow&distro=openSUSE%20Leap%2015.5pkg:rpm/suse/python-Pillow&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/python-Pillow&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/python-Pillow&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/python-Pillow&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/python-Pillow&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/python-Pillow&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 8.2.0+ 9 more
- (no CPE)range: < 8.2.0
- (no CPE)range: < 8.2.0
- (no CPE)range: < 5.1.1-16.el8
- (no CPE)range: < 7.2.0-150300.3.12.1
- (no CPE)range: < 4.2.1-3.14.1
- (no CPE)range: < 2.8.1-4.22.1
- (no CPE)range: < 4.2.1-3.14.1
- (no CPE)range: < 5.2.0-3.8.1
- (no CPE)range: < 4.2.1-3.14.1
- (no CPE)range: < 5.2.0-3.8.1
Patches
Vulnerability mechanics
References
11- github.com/python-pillow/Pillow/commit/bb6c11fb889e6c11b0ee122b828132ee763b5856nvdPatchWEB
- github.com/advisories/GHSA-7r7m-5h27-29hpghsaADVISORY
- github.com/python-pillow/Pillow/pull/5377nvdThird Party AdvisoryWEB
- lists.debian.org/debian-lts-announce/2021/07/msg00018.htmlnvdThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-28676ghsaADVISORY
- pillow.readthedocs.io/en/stable/releasenotes/8.2.0.htmlnvdRelease NotesThird Party AdvisoryWEB
- security.gentoo.org/glsa/202107-33nvdThird Party AdvisoryWEB
- github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-92.yamlghsaWEB
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FLghsaWEB
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/nvdMailing List
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FLghsaWEB
News mentions
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