A denial-of-service vulnerability exists in github.com/sirupsen/logrus when using Entry.Writer() to log a single-line payload larger than 64KB without newline characters. Due to limitations in the internal bufio.Scanner, the read fails with "token too long" and the writer pipe is closed, leaving Writer() unusable and causing application unavailability (DoS). This affects versions < 1.8.3, 1.9.0, and 1.9.2. The issue is fixed in 1.8.3, 1.9.1, and 1.9.3+, where the input is chunked and the writer continues to function even if an error is logged.
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2026:0425 https://access.redhat.com/errata/RHSA-2026:0425
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2026:2519 https://access.redhat.com/errata/RHSA-2026:2519
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2026:2520 https://access.redhat.com/errata/RHSA-2026:2520
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2026:2686 https://access.redhat.com/errata/RHSA-2026:2686
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2026:2688 https://access.redhat.com/errata/RHSA-2026:2688
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Red Hat Enterprise Linux 8.8 Telecommunications Update Service Via RHSA-2026:2685 https://access.redhat.com/errata/RHSA-2026:2685
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Red Hat Enterprise Linux 8.6 Telecommunications Update Service Via RHSA-2026:2687 https://access.redhat.com/errata/RHSA-2026:2687
This issue has been addressed in the following products: Red Hat OpenShift Container Platform 4.16 Via RHSA-2026:2658 https://access.redhat.com/errata/RHSA-2026:2658
This issue has been addressed in the following products: Red Hat OpenShift Container Platform 4.17 Via RHSA-2026:2670 https://access.redhat.com/errata/RHSA-2026:2670
This issue has been addressed in the following products: Red Hat OpenShift Container Platform 4.17 Via RHSA-2026:2746 https://access.redhat.com/errata/RHSA-2026:2746
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2026:3428 https://access.redhat.com/errata/RHSA-2026:3428
This issue has been addressed in the following products: Red Hat OpenShift Container Platform 4.14 Via RHSA-2026:2973 https://access.redhat.com/errata/RHSA-2026:2973
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2026:4531 https://access.redhat.com/errata/RHSA-2026:4531
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2026:4532 https://access.redhat.com/errata/RHSA-2026:4532
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2026:4533 https://access.redhat.com/errata/RHSA-2026:4533
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Red Hat Enterprise Linux 8.8 Telecommunications Update Service Via RHSA-2026:4693 https://access.redhat.com/errata/RHSA-2026:4693
This issue has been addressed in the following products: Red Hat OpenShift Container Platform 4.15 Via RHSA-2026:4418 https://access.redhat.com/errata/RHSA-2026:4418
This issue has been addressed in the following products: Red Hat OpenShift Container Platform 4.16 Via RHSA-2026:4580 https://access.redhat.com/errata/RHSA-2026:4580
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Red Hat Enterprise Linux 8.8 Telecommunications Update Service Via RHSA-2026:6191 https://access.redhat.com/errata/RHSA-2026:6191