Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | pillow | 8.1.2+dfsg-0.2 | — |
| Debian 13 | pillow | 8.1.2+dfsg-0.2 | — |
| Debian 12 | pillow | 8.1.2+dfsg-0.2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | pillow | 7.0.0-4ubuntu0.4 | USN-4963-1 |
| Ubuntu 18.04 LTS | pillow | 5.1.0-1ubuntu0.6 | USN-4963-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | pillow-python2 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | python-pillow +1 | 5.1.1-16.el8 | RHSA-2021:4149 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | python3-pillow | 5.1.1-16.el8 | ALSA-2021:4149 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | python-pillow | 5.1.1-16.el8 | RLSA-2021:4149 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE OpenStack Cloud Crowbar 9 | python-Pillow | 5.2.0-3.8.1 | SUSE-SU-2021:1938-1 |
| SUSE OpenStack Cloud 9 | python-Pillow | 5.2.0-3.8.1 | SUSE-SU-2021:1938-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | python-Pillow | 7.2.0-150300.3.12.1 | SUSE-SU-2024:1607-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | py3-pillow | 8.2.0-r0 | — |
| Alpine v3.23 | py3-pillow | 8.2.0-r0 | — |
| Alpine v3.22 | py3-pillow | 8.2.0-r0 | — |
| Alpine v3.21 | py3-pillow | 8.2.0-r0 | — |
| Alpine v3.20 | py3-pillow | 8.2.0-r0 | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | py3-pillow | 8.2.0-r0 | — |
| Alpine v3.18 | py3-pillow | 8.2.0-r0 | — |
| Alpine v3.17 | py3-pillow | 8.2.0-r0 | — |
| Alpine v3.16 | py3-pillow | 8.2.0-r0 | — |
| Alpine v3.15 | py3-pillow | 8.2.0-r0 | — |
| Alpine v3.14 | py3-pillow | 8.2.0-r0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | pillow | >= 5.1.0, < 8.2.0 | 8.2.0 | GHSA-hjfx-8p6c-g7gx |
| PyPI | pillow | < 8.2.0 | 8.2.0 | PYSEC-2021-94 |
Advisories 7
- ALSA-2021:4149 Moderate: python-pillow security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2022-1835 Red Hat Enterprise Linux (python-pillow): Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 14, 2026
- RHSA-2021:4149 Red Hat Security Advisory: python-pillow security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-4963-1 pillow vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- RLSA-2021:4149 Moderate: python-pillow security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2024:1607-1 Security update for python-Pillow SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1938-1 Security update for python-Pillow SUSE / openSUSE Security Updates · Feb 4, 2026