Red Hat Security Advisory: python-pillow security update
Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * python-pillow: Pillow: Denial of Service via crafted BDF font file (CVE-2026-55379) * python-pillow: Pillow: Denial of Service via crafted GD 2.x image file (CVE-2026-55380) * python-pillow: Pillow: Denial of Service via crafted PCF font data (CVE-2026-54059) * python-pillow: Pillow: Denial of Service via excessive memory allocation when processing font files (CVE-2026-54060) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
The python-pillow library in Red Hat Enterprise Linux 8 contains several denial of service vulnerabilities (CVE-2026-55379, CVE-2026-55380, CVE-2026-54059, CVE-2026-54060) caused by processing crafted BDF font files, GD 2.x image files, PCF font data, and font files leading to excessive memory allocation. These vulnerabilities can cause the application using Pillow to crash or consume excessive resources, resulting in denial of service conditions. Red Hat has issued security advisories and updates to fix these issues in python-pillow packages for multiple architectures and RHEL 8 variants.
Potential Impact
Successful exploitation of these vulnerabilities can cause denial of service by crashing applications or exhausting system memory when processing maliciously crafted font or image files using the python-pillow library. This impacts availability of services relying on Pillow for image processing on affected Red Hat Enterprise Linux 8 systems.
Mitigation Recommendations
Red Hat has released updated python-pillow packages that address these denial of service vulnerabilities. Users should apply the security updates provided in Red Hat Enterprise Linux 8.6 through 8.10 and related variants as detailed in Red Hat advisories RHSA-2026:39127 and RHSA-2026:48760. Refer to https://access.redhat.com/articles/11258 for update instructions. No additional mitigations are specified by Red Hat beyond applying the official patches.
Red Hat Security Advisory: python-pillow security update
Description
Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * python-pillow: Pillow: Denial of Service via crafted BDF font file (CVE-2026-55379) * python-pillow: Pillow: Denial of Service via crafted GD 2.x image file (CVE-2026-55380) * python-pillow: Pillow: Denial of Service via crafted PCF font data (CVE-2026-54059) * python-pillow: Pillow: Denial of Service via excessive memory allocation when processing font files (CVE-2026-54060) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The python-pillow library in Red Hat Enterprise Linux 8 contains several denial of service vulnerabilities (CVE-2026-55379, CVE-2026-55380, CVE-2026-54059, CVE-2026-54060) caused by processing crafted BDF font files, GD 2.x image files, PCF font data, and font files leading to excessive memory allocation. These vulnerabilities can cause the application using Pillow to crash or consume excessive resources, resulting in denial of service conditions. Red Hat has issued security advisories and updates to fix these issues in python-pillow packages for multiple architectures and RHEL 8 variants.
Potential Impact
Successful exploitation of these vulnerabilities can cause denial of service by crashing applications or exhausting system memory when processing maliciously crafted font or image files using the python-pillow library. This impacts availability of services relying on Pillow for image processing on affected Red Hat Enterprise Linux 8 systems.
Mitigation Recommendations
Red Hat has released updated python-pillow packages that address these denial of service vulnerabilities. Users should apply the security updates provided in Red Hat Enterprise Linux 8.6 through 8.10 and related variants as detailed in Red Hat advisories RHSA-2026:39127 and RHSA-2026:48760. Refer to https://access.redhat.com/articles/11258 for update instructions. No additional mitigations are specified by Red Hat beyond applying the official patches.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:39127
- Cve Count
- 4
- Additional Cves
- ["CVE-2026-54060","CVE-2026-55379","CVE-2026-55380"]
- Cvss Version
- null
Threat ID: 6a58ff2268715ace43492ed7
Added to database: 07/16/2026, 15:56:18 UTC
Last enriched: 08/10/2026, 19:59:48 UTC
Last updated: 08/30/2026, 22:52:12 UTC
Views: 83
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.