- Issued:
- 2026-05-06
- Updated:
- 2026-05-06
RHSA-2026:14211 - Security Advisory
Synopsis
Moderate: corosync security update
Type/Severity
Security Advisory: Moderate
Red Hat Lightspeed patch analysis
Identify and remediate systems affected by this advisory.
Topic
An update for corosync is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions.
Red Hat Product Security has rated this update as having a security impact of Moderate. 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
The corosync packages provide the Corosync Cluster Engine and C APIs for Red Hat Enterprise Linux cluster software.
Security Fix(es):
- corosync: Corosync: Denial of Service and information disclosure via crafted UDP packet (CVE-2026-35091)
- corosync: Corosync: Denial of Service via integer overflow in join message validation (CVE-2026-35092)
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:
Affected Products
- Red Hat Enterprise Linux High Availability for Power LE - Update Services for SAP Solutions 9.0 ppc64le
- Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.0 x86_64
- Red Hat Enterprise Linux High Availability for x86_64 - Update Services for SAP Solutions 9.0 x86_64
- Red Hat Enterprise Linux High Availability for ARM 64 - 4 years of updates 9.0 aarch64
- Red Hat Enterprise Linux High Availability for IBM z Systems - 4 years of updates 9.0 s390x
- Red Hat Enterprise Linux Resilient Storage for x86_64 - 4 years of updates 9.0 x86_64
- Red Hat Enterprise Linux Resilient Storage for Power, little endian - 4 years of updates 9.0 ppc64le
- Red Hat Enterprise Linux Resilient Storage for IBM z Systems - 4 years of updates 9.0 s390x
Fixes
- BZ - 2453813 - CVE-2026-35091 corosync: Corosync: Denial of Service and information disclosure via crafted UDP packet
- BZ - 2453814 - CVE-2026-35092 corosync: Corosync: Denial of Service via integer overflow in join message validation
Note:
More recent versions of these packages may be available.
Click a package name for more details.
Red Hat Enterprise Linux High Availability for Power LE - Update Services for SAP Solutions 9.0
| SRPM | |
|---|---|
| ppc64le | |
| corosync-3.1.5-3.el9_0.1.ppc64le.rpm | SHA-256: 4a70d4eeb4b30a2df0452082d17bca1e906d4d951022bb19522975108ffef174 |
| corosync-debuginfo-3.1.5-3.el9_0.1.ppc64le.rpm | SHA-256: a623d88d9da6227adb44923be02c0a34dfc8a25d30d6157fb02c2a58c257c627 |
| corosync-debugsource-3.1.5-3.el9_0.1.ppc64le.rpm | SHA-256: 9714c7ed50b1e9ff506761f5ffea6fc02be628ee70079258dfe1e37c63cd7e28 |
| corosync-vqsim-debuginfo-3.1.5-3.el9_0.1.ppc64le.rpm | SHA-256: 283fc6266ba9cd18bab4f8bf1a8d34950ffb5567272925887dde76f4e107273d |
| corosynclib-3.1.5-3.el9_0.1.ppc64le.rpm | SHA-256: 88723c5d8469774ab91ff3dfdb971a024b63151ee7f430e2a64af622efb7a066 |
| corosynclib-debuginfo-3.1.5-3.el9_0.1.ppc64le.rpm | SHA-256: ac26ffbabf14ad93807bd3df25b6c8def678a8a602fdfd0b16673a0f52535143 |
| corosynclib-devel-3.1.5-3.el9_0.1.ppc64le.rpm | SHA-256: e128afae32aeefd73c6d84a3978f81a228d3e3e538f681c84bd275cf7b428a29 |
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.0
| SRPM | |
|---|---|
| corosync-3.1.5-3.el9_0.1.src.rpm | SHA-256: 66435ea15811d02f960643d44ebcaf4091594f3cef1c2ea397af70242ccefafc |
| x86_64 | |
| corosync-debuginfo-3.1.5-3.el9_0.1.i686.rpm | SHA-256: 57bd26b20b9f0668eaea0464dd5acace6805571d4d82bd13aea4a63201f5584a |
| corosync-debuginfo-3.1.5-3.el9_0.1.x86_64.rpm | SHA-256: f9978651be4dcf753a495331a9ea5919ed168da5d55d7a4d0e47c1741f559f8e |
| corosync-debugsource-3.1.5-3.el9_0.1.i686.rpm | SHA-256: 23aa45e4264e516591cdf563c0a244beed0faeb6a56d3ae01741960c86123514 |
| corosync-debugsource-3.1.5-3.el9_0.1.x86_64.rpm | SHA-256: c61503a5bc6dce23d3d38c05e5e7c623e49eefeffe810e52ebcae77d3fead938 |
| corosync-vqsim-debuginfo-3.1.5-3.el9_0.1.i686.rpm | SHA-256: 7522e6625946bbe5ffcf324e8a91145c34789e88739f835106598e656eb2c05a |
| corosync-vqsim-debuginfo-3.1.5-3.el9_0.1.x86_64.rpm | SHA-256: 2ee2e0f66644672f39a7fbb9314002575ba05e71854acbd1c4e75673f2236bf3 |
| corosynclib-3.1.5-3.el9_0.1.i686.rpm | SHA-256: c70fc0def96da09e601dda3d26f319608c6f6efcae4dbe8ca0cf53617c72efbb |
| corosynclib-3.1.5-3.el9_0.1.x86_64.rpm | SHA-256: afdb99618ebcd0a911b93a971c9ead4416c188bbc1bb3683881bab992de5a9cc |
| corosynclib-debuginfo-3.1.5-3.el9_0.1.i686.rpm | SHA-256: 812e7f0f94b4efc3708143dc86b55aacc3db6459cf593e478e1b7be58a9e60d0 |
| corosynclib-debuginfo-3.1.5-3.el9_0.1.x86_64.rpm | SHA-256: 2423ed2e036578057b566891b99c8e2cd7ee54e4ab5d76019a32f9d63a943a67 |
Red Hat Enterprise Linux High Availability for x86_64 - Update Services for SAP Solutions 9.0
| SRPM | |
|---|---|
| x86_64 | |
| corosync-3.1.5-3.el9_0.1.x86_64.rpm | SHA-256: 382cbf32e0667f85013ce6ec2f7a910dfa742fb4910535f93a53717360c4137f |
| corosync-debuginfo-3.1.5-3.el9_0.1.i686.rpm | SHA-256: 57bd26b20b9f0668eaea0464dd5acace6805571d4d82bd13aea4a63201f5584a |
| corosync-debuginfo-3.1.5-3.el9_0.1.x86_64.rpm | SHA-256: f9978651be4dcf753a495331a9ea5919ed168da5d55d7a4d0e47c1741f559f8e |
| corosync-debugsource-3.1.5-3.el9_0.1.i686.rpm | SHA-256: 23aa45e4264e516591cdf563c0a244beed0faeb6a56d3ae01741960c86123514 |
| corosync-debugsource-3.1.5-3.el9_0.1.x86_64.rpm | SHA-256: c61503a5bc6dce23d3d38c05e5e7c623e49eefeffe810e52ebcae77d3fead938 |
| corosync-vqsim-debuginfo-3.1.5-3.el9_0.1.i686.rpm | SHA-256: 7522e6625946bbe5ffcf324e8a91145c34789e88739f835106598e656eb2c05a |
| corosync-vqsim-debuginfo-3.1.5-3.el9_0.1.x86_64.rpm | SHA-256: 2ee2e0f66644672f39a7fbb9314002575ba05e71854acbd1c4e75673f2236bf3 |
| corosynclib-debuginfo-3.1.5-3.el9_0.1.i686.rpm | SHA-256: 812e7f0f94b4efc3708143dc86b55aacc3db6459cf593e478e1b7be58a9e60d0 |
| corosynclib-debuginfo-3.1.5-3.el9_0.1.x86_64.rpm | SHA-256: 2423ed2e036578057b566891b99c8e2cd7ee54e4ab5d76019a32f9d63a943a67 |
| corosynclib-devel-3.1.5-3.el9_0.1.i686.rpm | SHA-256: 3ab3a41e0a4b5ba15635044d7d996c00ea3fcc706e3e23ca0d38bb890ad79275 |
| corosynclib-devel-3.1.5-3.el9_0.1.x86_64.rpm | SHA-256: 6eedebf2c8fbd0252698bb2cbcd6f1dcdfebf6a0874aa40b74469928bb88774c |
Red Hat Enterprise Linux High Availability for ARM 64 - 4 years of updates 9.0
| SRPM | |
|---|---|
| aarch64 | |
| corosync-3.1.5-3.el9_0.1.aarch64.rpm | SHA-256: 734632ea6a1abb614b4b2ffd4321b6d5ca5faaff3b89526f67aac720edb0d115 |
| corosync-debuginfo-3.1.5-3.el9_0.1.aarch64.rpm | SHA-256: 1f22d990974d949bf74598316a0807b252b382564daf22642e8b157047c6af54 |
| corosync-debugsource-3.1.5-3.el9_0.1.aarch64.rpm | SHA-256: bf249377fae83c5679053c055a297d732a42d05bbbc421b0832ef5631682abc5 |
| corosync-vqsim-debuginfo-3.1.5-3.el9_0.1.aarch64.rpm | SHA-256: 09080617e2ed48a5ac84895a650937a67c3ab0cd2a380ddbf1ac44f52f1d50ee |
| corosynclib-3.1.5-3.el9_0.1.aarch64.rpm | SHA-256: dd123c37ada1df3d471a44fbe57dedcfb85f523e83f47a84efb13686847299a4 |
| corosynclib-debuginfo-3.1.5-3.el9_0.1.aarch64.rpm | SHA-256: d637843391d15c83c4c62b909cdb0968fb082eb041f799c3c562d588b2291568 |
| corosynclib-devel-3.1.5-3.el9_0.1.aarch64.rpm | SHA-256: 1b72c2275379216569925b7963547807d74c5cc83c310612f509e4ed026111d3 |
Red Hat Enterprise Linux High Availability for IBM z Systems - 4 years of updates 9.0
| SRPM | |
|---|---|
| s390x | |
| corosync-3.1.5-3.el9_0.1.s390x.rpm | SHA-256: 77c2cea97942dc1ca12a294f8fcd09146dbc72db8b0922ea71682fdc202b242b |
| corosync-debuginfo-3.1.5-3.el9_0.1.s390x.rpm | SHA-256: 0d91a3701921d62a6ecaf6f5e8c973c7bfda35f3ebe703c15f56352dac239bea |
| corosync-debugsource-3.1.5-3.el9_0.1.s390x.rpm | SHA-256: fd24822cacdcbd8bd41e8e4a6be6613eb558baf0171e1300df784cfcc80368ab |
| corosync-vqsim-debuginfo-3.1.5-3.el9_0.1.s390x.rpm | SHA-256: a065369ee8147413ada920cd556e7c62abff825ea6a75ef5cff70f50f74ecf3e |
| corosynclib-3.1.5-3.el9_0.1.s390x.rpm | SHA-256: 83373577f5fd082132fadc19d6631cd79ebdd5502275b9a85d91f19923617376 |
| corosynclib-debuginfo-3.1.5-3.el9_0.1.s390x.rpm | SHA-256: e8b05d27f4eec3a18f78a9127d85c8d6d92f1c8aa5202568c0bfc0ae68d8b0a5 |
| corosynclib-devel-3.1.5-3.el9_0.1.s390x.rpm | SHA-256: 4a205fe2641e80169ad8c646fedf8724837851d684977ce499d299873b47c7c3 |
Red Hat Enterprise Linux Resilient Storage for x86_64 - 4 years of updates 9.0
| SRPM | |
|---|---|
| x86_64 | |
| corosync-3.1.5-3.el9_0.1.x86_64.rpm | SHA-256: 382cbf32e0667f85013ce6ec2f7a910dfa742fb4910535f93a53717360c4137f |
| corosync-debuginfo-3.1.5-3.el9_0.1.i686.rpm | SHA-256: 57bd26b20b9f0668eaea0464dd5acace6805571d4d82bd13aea4a63201f5584a |
| corosync-debuginfo-3.1.5-3.el9_0.1.x86_64.rpm | SHA-256: f9978651be4dcf753a495331a9ea5919ed168da5d55d7a4d0e47c1741f559f8e |
| corosync-debugsource-3.1.5-3.el9_0.1.i686.rpm | SHA-256: 23aa45e4264e516591cdf563c0a244beed0faeb6a56d3ae01741960c86123514 |
| corosync-debugsource-3.1.5-3.el9_0.1.x86_64.rpm | SHA-256: c61503a5bc6dce23d3d38c05e5e7c623e49eefeffe810e52ebcae77d3fead938 |
| corosync-vqsim-debuginfo-3.1.5-3.el9_0.1.i686.rpm | SHA-256: 7522e6625946bbe5ffcf324e8a91145c34789e88739f835106598e656eb2c05a |
| corosync-vqsim-debuginfo-3.1.5-3.el9_0.1.x86_64.rpm | SHA-256: 2ee2e0f66644672f39a7fbb9314002575ba05e71854acbd1c4e75673f2236bf3 |
| corosynclib-debuginfo-3.1.5-3.el9_0.1.i686.rpm | SHA-256: 812e7f0f94b4efc3708143dc86b55aacc3db6459cf593e478e1b7be58a9e60d0 |
| corosynclib-debuginfo-3.1.5-3.el9_0.1.x86_64.rpm | SHA-256: 2423ed2e036578057b566891b99c8e2cd7ee54e4ab5d76019a32f9d63a943a67 |
| corosynclib-devel-3.1.5-3.el9_0.1.i686.rpm | SHA-256: 3ab3a41e0a4b5ba15635044d7d996c00ea3fcc706e3e23ca0d38bb890ad79275 |
| corosynclib-devel-3.1.5-3.el9_0.1.x86_64.rpm | SHA-256: 6eedebf2c8fbd0252698bb2cbcd6f1dcdfebf6a0874aa40b74469928bb88774c |
Red Hat Enterprise Linux Resilient Storage for Power, little endian - 4 years of updates 9.0
| SRPM | |
|---|---|
| ppc64le | |
| corosync-3.1.5-3.el9_0.1.ppc64le.rpm | SHA-256: 4a70d4eeb4b30a2df0452082d17bca1e906d4d951022bb19522975108ffef174 |
| corosync-debuginfo-3.1.5-3.el9_0.1.ppc64le.rpm | SHA-256: a623d88d9da6227adb44923be02c0a34dfc8a25d30d6157fb02c2a58c257c627 |
| corosync-debugsource-3.1.5-3.el9_0.1.ppc64le.rpm | SHA-256: 9714c7ed50b1e9ff506761f5ffea6fc02be628ee70079258dfe1e37c63cd7e28 |
| corosync-vqsim-debuginfo-3.1.5-3.el9_0.1.ppc64le.rpm | SHA-256: 283fc6266ba9cd18bab4f8bf1a8d34950ffb5567272925887dde76f4e107273d |
| corosynclib-3.1.5-3.el9_0.1.ppc64le.rpm | SHA-256: 88723c5d8469774ab91ff3dfdb971a024b63151ee7f430e2a64af622efb7a066 |
| corosynclib-debuginfo-3.1.5-3.el9_0.1.ppc64le.rpm | SHA-256: ac26ffbabf14ad93807bd3df25b6c8def678a8a602fdfd0b16673a0f52535143 |
| corosynclib-devel-3.1.5-3.el9_0.1.ppc64le.rpm | SHA-256: e128afae32aeefd73c6d84a3978f81a228d3e3e538f681c84bd275cf7b428a29 |
Red Hat Enterprise Linux Resilient Storage for IBM z Systems - 4 years of updates 9.0
| SRPM | |
|---|---|
| s390x | |
| corosync-3.1.5-3.el9_0.1.s390x.rpm | SHA-256: 77c2cea97942dc1ca12a294f8fcd09146dbc72db8b0922ea71682fdc202b242b |
| corosync-debuginfo-3.1.5-3.el9_0.1.s390x.rpm | SHA-256: 0d91a3701921d62a6ecaf6f5e8c973c7bfda35f3ebe703c15f56352dac239bea |
| corosync-debugsource-3.1.5-3.el9_0.1.s390x.rpm | SHA-256: fd24822cacdcbd8bd41e8e4a6be6613eb558baf0171e1300df784cfcc80368ab |
| corosync-vqsim-debuginfo-3.1.5-3.el9_0.1.s390x.rpm | SHA-256: a065369ee8147413ada920cd556e7c62abff825ea6a75ef5cff70f50f74ecf3e |
| corosynclib-3.1.5-3.el9_0.1.s390x.rpm | SHA-256: 83373577f5fd082132fadc19d6631cd79ebdd5502275b9a85d91f19923617376 |
| corosynclib-debuginfo-3.1.5-3.el9_0.1.s390x.rpm | SHA-256: e8b05d27f4eec3a18f78a9127d85c8d6d92f1c8aa5202568c0bfc0ae68d8b0a5 |
| corosynclib-devel-3.1.5-3.el9_0.1.s390x.rpm | SHA-256: 4a205fe2641e80169ad8c646fedf8724837851d684977ce499d299873b47c7c3 |
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