Red Hat Product Errata RHSA-2026:72275 - Security Advisory
Issued:
2026-09-28
Updated:
2026-09-28

RHSA-2026:72275 - Security Advisory

Synopsis

Important: rhc security update

Type/Severity

Security Advisory: Important

Red Hat Lightspeed patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for rhc is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

rhc is a client tool and daemon that connects the system to Red Hat hosted services enabling system and subscription management.

Security Fix(es):

  • google.golang.org/grpc: gRPC-Go: Denial of Service via malformed RPC requests (CVE-2026-84445)

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.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

  • Red Hat Enterprise Linux for x86_64 9 x86_64
  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.8 x86_64
  • Red Hat Enterprise Linux for IBM z Systems 9 s390x
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.8 s390x
  • Red Hat Enterprise Linux for Power, little endian 9 ppc64le
  • Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.8 ppc64le
  • Red Hat Enterprise Linux for ARM 64 9 aarch64
  • Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.8 aarch64
  • Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.8 ppc64le
  • Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.8 x86_64
  • Red Hat CodeReady Linux Builder for x86_64 9 x86_64
  • Red Hat CodeReady Linux Builder for Power, little endian 9 ppc64le
  • Red Hat CodeReady Linux Builder for ARM 64 9 aarch64
  • Red Hat CodeReady Linux Builder for IBM z Systems 9 s390x
  • Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 9.8 x86_64
  • Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 9.8 ppc64le
  • Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 9.8 s390x
  • Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 9.8 aarch64
  • Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.8 aarch64
  • Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.8 s390x
  • Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.8 x86_64
  • Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.8 aarch64
  • Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.8 ppc64le
  • Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.8 s390x

Fixes

  • BZ - 2533175 - CVE-2026-84445 google.golang.org/grpc: gRPC-Go: Denial of Service via malformed RPC requests

Red Hat Enterprise Linux for x86_64 9

SRPM
rhc-0.2.7-13.el9_8.src.rpm SHA-256: 0521773cf90c630353cba799411f5fe6d0011a3eb5ce91cd5e9cd50ae660f2c8
x86_64
rhc-0.2.7-13.el9_8.x86_64.rpm SHA-256: 25490f7c1d3f8b38a6c749dc274fd6e266c5dbdb7c9dd56583a2bd79da8f1d92
rhc-debuginfo-0.2.7-13.el9_8.x86_64.rpm SHA-256: 48c36b0c85fcf808148f70ad2e83bd05c7cc1512cf25b695dfbd63351b2dfaf3
rhc-debugsource-0.2.7-13.el9_8.x86_64.rpm SHA-256: d469dc18ebc5c1d4b2f19d96f54759b2b6ac35d673d508bf99e6e6d14b4b1cc2

Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.8

SRPM
rhc-0.2.7-13.el9_8.src.rpm SHA-256: 0521773cf90c630353cba799411f5fe6d0011a3eb5ce91cd5e9cd50ae660f2c8
x86_64
rhc-0.2.7-13.el9_8.x86_64.rpm SHA-256: 25490f7c1d3f8b38a6c749dc274fd6e266c5dbdb7c9dd56583a2bd79da8f1d92
rhc-debuginfo-0.2.7-13.el9_8.x86_64.rpm SHA-256: 48c36b0c85fcf808148f70ad2e83bd05c7cc1512cf25b695dfbd63351b2dfaf3
rhc-debugsource-0.2.7-13.el9_8.x86_64.rpm SHA-256: d469dc18ebc5c1d4b2f19d96f54759b2b6ac35d673d508bf99e6e6d14b4b1cc2

Red Hat Enterprise Linux for IBM z Systems 9

SRPM
rhc-0.2.7-13.el9_8.src.rpm SHA-256: 0521773cf90c630353cba799411f5fe6d0011a3eb5ce91cd5e9cd50ae660f2c8
s390x
rhc-0.2.7-13.el9_8.s390x.rpm SHA-256: 1d1825b201435de70094f3a8d605dcbdc44f2d9d29a1b58e814befd8a9ab437b
rhc-debuginfo-0.2.7-13.el9_8.s390x.rpm SHA-256: 2dd0cffcd767d451373674908ebaf95b472065c61d08dbebfdb9181f28d3ce80
rhc-debugsource-0.2.7-13.el9_8.s390x.rpm SHA-256: 189a865539d5f154d0d0af9309699c2e8de62ed0c63bd374d668f0e72203b05e

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.8

SRPM
rhc-0.2.7-13.el9_8.src.rpm SHA-256: 0521773cf90c630353cba799411f5fe6d0011a3eb5ce91cd5e9cd50ae660f2c8
s390x
rhc-0.2.7-13.el9_8.s390x.rpm SHA-256: 1d1825b201435de70094f3a8d605dcbdc44f2d9d29a1b58e814befd8a9ab437b
rhc-debuginfo-0.2.7-13.el9_8.s390x.rpm SHA-256: 2dd0cffcd767d451373674908ebaf95b472065c61d08dbebfdb9181f28d3ce80
rhc-debugsource-0.2.7-13.el9_8.s390x.rpm SHA-256: 189a865539d5f154d0d0af9309699c2e8de62ed0c63bd374d668f0e72203b05e

Red Hat Enterprise Linux for Power, little endian 9

SRPM
rhc-0.2.7-13.el9_8.src.rpm SHA-256: 0521773cf90c630353cba799411f5fe6d0011a3eb5ce91cd5e9cd50ae660f2c8
ppc64le
rhc-0.2.7-13.el9_8.ppc64le.rpm SHA-256: 1d2d383f03bfe6fa5bd69f82d2a12688ac2fb2e150a3f04f38d38e0b15bf238f
rhc-debuginfo-0.2.7-13.el9_8.ppc64le.rpm SHA-256: 2e8ee2fc9d8e4142056a5a5181c0a7ae65c34fe184283ce767cb2478adf7da96
rhc-debugsource-0.2.7-13.el9_8.ppc64le.rpm SHA-256: c08712f27000532338bf4e165d16697bedb8990d309865e114b23ccb78ab20a2

Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.8

SRPM
rhc-0.2.7-13.el9_8.src.rpm SHA-256: 0521773cf90c630353cba799411f5fe6d0011a3eb5ce91cd5e9cd50ae660f2c8
ppc64le
rhc-0.2.7-13.el9_8.ppc64le.rpm SHA-256: 1d2d383f03bfe6fa5bd69f82d2a12688ac2fb2e150a3f04f38d38e0b15bf238f
rhc-debuginfo-0.2.7-13.el9_8.ppc64le.rpm SHA-256: 2e8ee2fc9d8e4142056a5a5181c0a7ae65c34fe184283ce767cb2478adf7da96
rhc-debugsource-0.2.7-13.el9_8.ppc64le.rpm SHA-256: c08712f27000532338bf4e165d16697bedb8990d309865e114b23ccb78ab20a2

Red Hat Enterprise Linux for ARM 64 9

SRPM
rhc-0.2.7-13.el9_8.src.rpm SHA-256: 0521773cf90c630353cba799411f5fe6d0011a3eb5ce91cd5e9cd50ae660f2c8
aarch64
rhc-0.2.7-13.el9_8.aarch64.rpm SHA-256: eaf2c1020acc7547a46639eea66f9b249ed4fe53b58fc0b08e7381dc2cbf4047
rhc-debuginfo-0.2.7-13.el9_8.aarch64.rpm SHA-256: 9a2ad95121e668c0ba87d14fa5cecfdd841c74da0699b6c849239ffa78afddd8
rhc-debugsource-0.2.7-13.el9_8.aarch64.rpm SHA-256: fa5ea14d09b2280c748d70bce098dee3b4c5a498c96b3d246585a097336777d9

Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.8

SRPM
rhc-0.2.7-13.el9_8.src.rpm SHA-256: 0521773cf90c630353cba799411f5fe6d0011a3eb5ce91cd5e9cd50ae660f2c8
aarch64
rhc-0.2.7-13.el9_8.aarch64.rpm SHA-256: eaf2c1020acc7547a46639eea66f9b249ed4fe53b58fc0b08e7381dc2cbf4047
rhc-debuginfo-0.2.7-13.el9_8.aarch64.rpm SHA-256: 9a2ad95121e668c0ba87d14fa5cecfdd841c74da0699b6c849239ffa78afddd8
rhc-debugsource-0.2.7-13.el9_8.aarch64.rpm SHA-256: fa5ea14d09b2280c748d70bce098dee3b4c5a498c96b3d246585a097336777d9

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.8

SRPM
rhc-0.2.7-13.el9_8.src.rpm SHA-256: 0521773cf90c630353cba799411f5fe6d0011a3eb5ce91cd5e9cd50ae660f2c8
ppc64le
rhc-0.2.7-13.el9_8.ppc64le.rpm SHA-256: 1d2d383f03bfe6fa5bd69f82d2a12688ac2fb2e150a3f04f38d38e0b15bf238f
rhc-debuginfo-0.2.7-13.el9_8.ppc64le.rpm SHA-256: 2e8ee2fc9d8e4142056a5a5181c0a7ae65c34fe184283ce767cb2478adf7da96
rhc-debugsource-0.2.7-13.el9_8.ppc64le.rpm SHA-256: c08712f27000532338bf4e165d16697bedb8990d309865e114b23ccb78ab20a2

Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.8

SRPM
rhc-0.2.7-13.el9_8.src.rpm SHA-256: 0521773cf90c630353cba799411f5fe6d0011a3eb5ce91cd5e9cd50ae660f2c8
x86_64
rhc-0.2.7-13.el9_8.x86_64.rpm SHA-256: 25490f7c1d3f8b38a6c749dc274fd6e266c5dbdb7c9dd56583a2bd79da8f1d92
rhc-debuginfo-0.2.7-13.el9_8.x86_64.rpm SHA-256: 48c36b0c85fcf808148f70ad2e83bd05c7cc1512cf25b695dfbd63351b2dfaf3
rhc-debugsource-0.2.7-13.el9_8.x86_64.rpm SHA-256: d469dc18ebc5c1d4b2f19d96f54759b2b6ac35d673d508bf99e6e6d14b4b1cc2

Red Hat CodeReady Linux Builder for x86_64 9

SRPM
x86_64
rhc-debuginfo-0.2.7-13.el9_8.x86_64.rpm SHA-256: 48c36b0c85fcf808148f70ad2e83bd05c7cc1512cf25b695dfbd63351b2dfaf3
rhc-debugsource-0.2.7-13.el9_8.x86_64.rpm SHA-256: d469dc18ebc5c1d4b2f19d96f54759b2b6ac35d673d508bf99e6e6d14b4b1cc2
rhc-devel-0.2.7-13.el9_8.x86_64.rpm SHA-256: 1b9af31bbea47d1beb2f1d0252230cb0f4643c9cfe7d1dab8fae2b008293140a

Red Hat CodeReady Linux Builder for Power, little endian 9

SRPM
ppc64le
rhc-debuginfo-0.2.7-13.el9_8.ppc64le.rpm SHA-256: 2e8ee2fc9d8e4142056a5a5181c0a7ae65c34fe184283ce767cb2478adf7da96
rhc-debugsource-0.2.7-13.el9_8.ppc64le.rpm SHA-256: c08712f27000532338bf4e165d16697bedb8990d309865e114b23ccb78ab20a2
rhc-devel-0.2.7-13.el9_8.ppc64le.rpm SHA-256: b99069723306d7a4ae3f0663d623412b89ef6b8cb8cf6ca8e04c75c3557ce667

Red Hat CodeReady Linux Builder for ARM 64 9

SRPM
aarch64
rhc-debuginfo-0.2.7-13.el9_8.aarch64.rpm SHA-256: 9a2ad95121e668c0ba87d14fa5cecfdd841c74da0699b6c849239ffa78afddd8
rhc-debugsource-0.2.7-13.el9_8.aarch64.rpm SHA-256: fa5ea14d09b2280c748d70bce098dee3b4c5a498c96b3d246585a097336777d9
rhc-devel-0.2.7-13.el9_8.aarch64.rpm SHA-256: c56acedf39d24f1014a50a717e3ef602ee1b0f86b77a32129057f667aa6bfd38

Red Hat CodeReady Linux Builder for IBM z Systems 9

SRPM
s390x
rhc-debuginfo-0.2.7-13.el9_8.s390x.rpm SHA-256: 2dd0cffcd767d451373674908ebaf95b472065c61d08dbebfdb9181f28d3ce80
rhc-debugsource-0.2.7-13.el9_8.s390x.rpm SHA-256: 189a865539d5f154d0d0af9309699c2e8de62ed0c63bd374d668f0e72203b05e
rhc-devel-0.2.7-13.el9_8.s390x.rpm SHA-256: 5fe8dba553f991c1ec1aa403a54974d69375083d65c3c5955c742a6bdfbae684

Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 9.8

SRPM
x86_64
rhc-debuginfo-0.2.7-13.el9_8.x86_64.rpm SHA-256: 48c36b0c85fcf808148f70ad2e83bd05c7cc1512cf25b695dfbd63351b2dfaf3
rhc-debugsource-0.2.7-13.el9_8.x86_64.rpm SHA-256: d469dc18ebc5c1d4b2f19d96f54759b2b6ac35d673d508bf99e6e6d14b4b1cc2
rhc-devel-0.2.7-13.el9_8.x86_64.rpm SHA-256: 1b9af31bbea47d1beb2f1d0252230cb0f4643c9cfe7d1dab8fae2b008293140a

Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 9.8

SRPM
ppc64le
rhc-debuginfo-0.2.7-13.el9_8.ppc64le.rpm SHA-256: 2e8ee2fc9d8e4142056a5a5181c0a7ae65c34fe184283ce767cb2478adf7da96
rhc-debugsource-0.2.7-13.el9_8.ppc64le.rpm SHA-256: c08712f27000532338bf4e165d16697bedb8990d309865e114b23ccb78ab20a2
rhc-devel-0.2.7-13.el9_8.ppc64le.rpm SHA-256: b99069723306d7a4ae3f0663d623412b89ef6b8cb8cf6ca8e04c75c3557ce667

Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 9.8

SRPM
s390x
rhc-debuginfo-0.2.7-13.el9_8.s390x.rpm SHA-256: 2dd0cffcd767d451373674908ebaf95b472065c61d08dbebfdb9181f28d3ce80
rhc-debugsource-0.2.7-13.el9_8.s390x.rpm SHA-256: 189a865539d5f154d0d0af9309699c2e8de62ed0c63bd374d668f0e72203b05e
rhc-devel-0.2.7-13.el9_8.s390x.rpm SHA-256: 5fe8dba553f991c1ec1aa403a54974d69375083d65c3c5955c742a6bdfbae684

Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 9.8

SRPM
aarch64
rhc-debuginfo-0.2.7-13.el9_8.aarch64.rpm SHA-256: 9a2ad95121e668c0ba87d14fa5cecfdd841c74da0699b6c849239ffa78afddd8
rhc-debugsource-0.2.7-13.el9_8.aarch64.rpm SHA-256: fa5ea14d09b2280c748d70bce098dee3b4c5a498c96b3d246585a097336777d9
rhc-devel-0.2.7-13.el9_8.aarch64.rpm SHA-256: c56acedf39d24f1014a50a717e3ef602ee1b0f86b77a32129057f667aa6bfd38

Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.8

SRPM
rhc-0.2.7-13.el9_8.src.rpm SHA-256: 0521773cf90c630353cba799411f5fe6d0011a3eb5ce91cd5e9cd50ae660f2c8
aarch64
rhc-0.2.7-13.el9_8.aarch64.rpm SHA-256: eaf2c1020acc7547a46639eea66f9b249ed4fe53b58fc0b08e7381dc2cbf4047
rhc-debuginfo-0.2.7-13.el9_8.aarch64.rpm SHA-256: 9a2ad95121e668c0ba87d14fa5cecfdd841c74da0699b6c849239ffa78afddd8
rhc-debugsource-0.2.7-13.el9_8.aarch64.rpm SHA-256: fa5ea14d09b2280c748d70bce098dee3b4c5a498c96b3d246585a097336777d9

Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.8

SRPM
rhc-0.2.7-13.el9_8.src.rpm SHA-256: 0521773cf90c630353cba799411f5fe6d0011a3eb5ce91cd5e9cd50ae660f2c8
s390x
rhc-0.2.7-13.el9_8.s390x.rpm SHA-256: 1d1825b201435de70094f3a8d605dcbdc44f2d9d29a1b58e814befd8a9ab437b
rhc-debuginfo-0.2.7-13.el9_8.s390x.rpm SHA-256: 2dd0cffcd767d451373674908ebaf95b472065c61d08dbebfdb9181f28d3ce80
rhc-debugsource-0.2.7-13.el9_8.s390x.rpm SHA-256: 189a865539d5f154d0d0af9309699c2e8de62ed0c63bd374d668f0e72203b05e

Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.8

SRPM
rhc-0.2.7-13.el9_8.src.rpm SHA-256: 0521773cf90c630353cba799411f5fe6d0011a3eb5ce91cd5e9cd50ae660f2c8
x86_64
rhc-0.2.7-13.el9_8.x86_64.rpm SHA-256: 25490f7c1d3f8b38a6c749dc274fd6e266c5dbdb7c9dd56583a2bd79da8f1d92
rhc-debuginfo-0.2.7-13.el9_8.x86_64.rpm SHA-256: 48c36b0c85fcf808148f70ad2e83bd05c7cc1512cf25b695dfbd63351b2dfaf3
rhc-debugsource-0.2.7-13.el9_8.x86_64.rpm SHA-256: d469dc18ebc5c1d4b2f19d96f54759b2b6ac35d673d508bf99e6e6d14b4b1cc2

Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.8

SRPM
rhc-0.2.7-13.el9_8.src.rpm SHA-256: 0521773cf90c630353cba799411f5fe6d0011a3eb5ce91cd5e9cd50ae660f2c8
aarch64
rhc-0.2.7-13.el9_8.aarch64.rpm SHA-256: eaf2c1020acc7547a46639eea66f9b249ed4fe53b58fc0b08e7381dc2cbf4047
rhc-debuginfo-0.2.7-13.el9_8.aarch64.rpm SHA-256: 9a2ad95121e668c0ba87d14fa5cecfdd841c74da0699b6c849239ffa78afddd8
rhc-debugsource-0.2.7-13.el9_8.aarch64.rpm SHA-256: fa5ea14d09b2280c748d70bce098dee3b4c5a498c96b3d246585a097336777d9

Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.8

SRPM
rhc-0.2.7-13.el9_8.src.rpm SHA-256: 0521773cf90c630353cba799411f5fe6d0011a3eb5ce91cd5e9cd50ae660f2c8
ppc64le
rhc-0.2.7-13.el9_8.ppc64le.rpm SHA-256: 1d2d383f03bfe6fa5bd69f82d2a12688ac2fb2e150a3f04f38d38e0b15bf238f
rhc-debuginfo-0.2.7-13.el9_8.ppc64le.rpm SHA-256: 2e8ee2fc9d8e4142056a5a5181c0a7ae65c34fe184283ce767cb2478adf7da96
rhc-debugsource-0.2.7-13.el9_8.ppc64le.rpm SHA-256: c08712f27000532338bf4e165d16697bedb8990d309865e114b23ccb78ab20a2

Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.8

SRPM
rhc-0.2.7-13.el9_8.src.rpm SHA-256: 0521773cf90c630353cba799411f5fe6d0011a3eb5ce91cd5e9cd50ae660f2c8
s390x
rhc-0.2.7-13.el9_8.s390x.rpm SHA-256: 1d1825b201435de70094f3a8d605dcbdc44f2d9d29a1b58e814befd8a9ab437b
rhc-debuginfo-0.2.7-13.el9_8.s390x.rpm SHA-256: 2dd0cffcd767d451373674908ebaf95b472065c61d08dbebfdb9181f28d3ce80
rhc-debugsource-0.2.7-13.el9_8.s390x.rpm SHA-256: 189a865539d5f154d0d0af9309699c2e8de62ed0c63bd374d668f0e72203b05e

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