Red Hat Enterprise Linux 8 Pillow Update Fixes Three CVEs
Tech GuruQuick Answer
Red Hat RHSA-2026:93077 fixes three Pillow image-processing vulnerabilities on RHEL 8. Inventory systems and applications consuming python-pillow, install the signed update, restart long-lived processes, test representative image workflows, and retain package, dependency and change evidence.
Confirm Scope And Apply The Supported Remediation
What to do now: Inventory RHEL 8 systems and applications using python-pillow, exact packages, image input sources, long-lived processes, containers, owners, backups, and maintenance windows. Confirm the RHEL 8 product and advisory-listed package; do not map the RPM range directly to PyPI, vendored, containerized, or statically bundled Pillow copies. Install the signed RHSA-2026:93077 packages and rebuild or restart dependent workloads so they load the corrected library. Confirm installed NEVRA and loaded dependencies, test representative and malformed image handling safely, restart services, monitor errors, and retain package and application evidence.
Last verified: 2026-10-31 UTC. Recheck the authoritative advisory and supported distribution channel before changing production.
Scope And Authority
| Product scope | python-pillow on Red Hat Enterprise Linux 8 AppStream and CRB |
|---|---|
| Advisory | RHSA-2026:93077 |
| CVEs | CVE-2026-112393, CVE-2026-112398, CVE-2026-112900 |
| Authoritative release date | 2026-10-30 19:24:14 UTC |
| Authority revision date | 2026-10-30 23:04:54 UTC |
| Affected versions | The advisory-listed python-pillow package on RHEL 8 before the fixed source build, subject to the exact product and architecture scope in RHSA-2026:93077. |
| Fixed version | python-pillow-0:5.1.1-36.el8_10.src |
| CVSS base score | 8.1 (CVSS v3.1) |
| CVSS severity | High |
| Exploitation status | Red Hat does not state that these vulnerabilities are being maliciously exploited.; no exploitation claim is inferred. |
What Changed
Red Hat rates this RHEL 8 python-pillow update Critical and fixes three CVEs, each with an official CVSS v3.1 base score of 8.1.
What To Validate Now
- Inventory. Inventory RHEL 8 systems and applications using python-pillow, exact packages, image input sources, long-lived processes, containers, owners, backups, and maintenance windows.
- Establish applicability. Confirm the RHEL 8 product and advisory-listed package; do not map the RPM range directly to PyPI, vendored, containerized, or statically bundled Pillow copies.
- Remediate. Install the signed RHSA-2026:93077 packages and rebuild or restart dependent workloads so they load the corrected library.
- Validate. Confirm installed NEVRA and loaded dependencies, test representative and malformed image handling safely, restart services, monitor errors, and retain package and application evidence.
- Retain evidence. Preserve asset and owner identifiers, the applicability decision, before-and-after versions, change approval, installation output, validation results, and any exception or rollback record.
Operational Cautions
Applications may vendor Pillow or retain it in a running interpreter. Package installation alone does not prove every process or container consumed the fixed code.
Evidence To Retain
- Exact product, release stream, package or application version, enabled feature, environment, and accountable owner.
- UTC timestamps, authority revision, approved change record, installer or package-manager output, and resulting version.
- Relevant logs and monitoring evidence, test results, exceptions, compensating controls, and rollback decisions.
Related TechGeeks Resources
Authoritative References
Correction policy: If the authority changes affected versions, fixed versions, severity, exploitation information, mitigations, or required action, TechGeeks will update this notice and its verification date.
