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CVE-2026-35092 (GCVE-0-2026-35092)

Vulnerability from cvelistv5 – Published: 2026-04-01 13:18 – Updated: 2026-05-29 16:13

Title

Corosync: corosync: denial of service via integer overflow in join message validation

Summary

A flaw was found in Corosync. An integer overflow vulnerability in Corosync's join message sanity validation allows a remote, unauthenticated attacker to send crafted User Datagram Protocol (UDP) packets. This can cause the service to crash, leading to a denial of service. This vulnerability specifically affects Corosync deployments configured to use totemudp/totemudpu mode.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

redhat

References

17 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:13644	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:13657	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:13673	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14205	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14210	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14211	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14212	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14213	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14214	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14215	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14216	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19043	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19200	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:20916	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-35092	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2453169
https://bugzilla.redhat.com/show_bug.cgi?id=2453814	issue-trackingx_refsource_REDHAT

Impacted products

19 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:3.1.9-2.el10_1.1 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.1
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:3.1.10-1.el10_2.1 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	Unaffected: 0:3.1.9-1.el10_0.2 , < * (rpm) cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	Unaffected: 0:2.4.5-7.el7_9.3 , < * (rpm) cpe:/o:redhat:enterprise_linux:7::server
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:3.1.8-1.el8_10.1 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::appstream cpe:/a:redhat:enterprise_linux:8::crb cpe:/a:redhat:enterprise_linux:8::highavailability cpe:/a:redhat:enterprise_linux:8::resilientstorage
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	Unaffected: 0:3.1.0-3.el8_4.2 , < * (rpm) cpe:/a:redhat:rhel_aus:8.4::appstream cpe:/a:redhat:rhel_aus:8.4::highavailability cpe:/a:redhat:rhel_eus_long_life:8.4::appstream cpe:/a:redhat:rhel_eus_long_life:8.4::highavailability
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	Unaffected: 0:3.1.0-3.el8_4.2 , < * (rpm) cpe:/a:redhat:rhel_aus:8.4::appstream cpe:/a:redhat:rhel_aus:8.4::highavailability cpe:/a:redhat:rhel_eus_long_life:8.4::appstream cpe:/a:redhat:rhel_eus_long_life:8.4::highavailability
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	Unaffected: 0:3.1.5-2.el8_6.1 , < * (rpm) cpe:/a:redhat:rhel_aus:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::highavailability cpe:/a:redhat:rhel_tus:8.6::appstream cpe:/a:redhat:rhel_tus:8.6::highavailability
Red Hat	Red Hat Enterprise Linux 8.6 Telecommunications Update Service	Unaffected: 0:3.1.5-2.el8_6.1 , < * (rpm) cpe:/a:redhat:rhel_aus:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::highavailability cpe:/a:redhat:rhel_tus:8.6::appstream cpe:/a:redhat:rhel_tus:8.6::highavailability
Red Hat	Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions	Unaffected: 0:3.1.5-2.el8_6.1 , < * (rpm) cpe:/a:redhat:rhel_aus:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::highavailability cpe:/a:redhat:rhel_tus:8.6::appstream cpe:/a:redhat:rhel_tus:8.6::highavailability
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	Unaffected: 0:3.1.7-1.el8_8.1 , < * (rpm) cpe:/a:redhat:rhel_e4s:8.8::appstream cpe:/a:redhat:rhel_e4s:8.8::highavailability cpe:/a:redhat:rhel_tus:8.8::appstream cpe:/a:redhat:rhel_tus:8.8::highavailability
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	Unaffected: 0:3.1.7-1.el8_8.1 , < * (rpm) cpe:/a:redhat:rhel_e4s:8.8::appstream cpe:/a:redhat:rhel_e4s:8.8::highavailability cpe:/a:redhat:rhel_tus:8.8::appstream cpe:/a:redhat:rhel_tus:8.8::highavailability
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:3.1.9-2.el9_7.1 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb cpe:/a:redhat:enterprise_linux:9::highavailability cpe:/a:redhat:enterprise_linux:9::resilientstorage
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:3.1.10-1.el9_8.1 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb cpe:/a:redhat:enterprise_linux:9::highavailability cpe:/a:redhat:enterprise_linux:9::resilientstorage
Red Hat	Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions	Unaffected: 0:3.1.5-3.el9_0.1 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.0::appstream cpe:/a:redhat:rhel_e4s:9.0::highavailability cpe:/a:redhat:rhel_e4s:9.0::resilientstorage
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:3.1.7-1.el9_2.1 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2::appstream cpe:/a:redhat:rhel_e4s:9.2::highavailability cpe:/a:redhat:rhel_e4s:9.2::resilientstorage
Red Hat	Red Hat Enterprise Linux 9.4 Extended Update Support	Unaffected: 0:3.1.8-1.el9_4.1 , < * (rpm) cpe:/a:redhat:rhel_eus:9.4::appstream cpe:/a:redhat:rhel_eus:9.4::crb cpe:/a:redhat:rhel_eus:9.4::highavailability cpe:/a:redhat:rhel_eus:9.4::resilientstorage
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:3.1.9-2.el9_6.1 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6::appstream cpe:/a:redhat:rhel_eus:9.6::crb cpe:/a:redhat:rhel_eus:9.6::highavailability cpe:/a:redhat:rhel_eus:9.6::resilientstorage
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2026-04-01 11:48

Credits

Red Hat would like to thank Sebastián Alba Vives for reporting this issue.

Show details on NVD website

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CVE-2026-35091 (GCVE-0-2026-35091)

Vulnerability from cvelistv5 – Published: 2026-04-01 13:18 – Updated: 2026-05-29 16:21

Title

Corosync: corosync: denial of service and information disclosure via crafted udp packet

Summary

A flaw was found in Corosync. A remote unauthenticated attacker can exploit a wrong return value vulnerability in the Corosync membership commit token sanity check by sending a specially crafted User Datagram Protocol (UDP) packet. This can lead to an out-of-bounds read, causing a denial of service (DoS) and potentially disclosing limited memory contents

Severity

8.2 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-253 - Incorrect Check of Function Return Value

Assigner

redhat

References

17 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:13644	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:13657	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:13673	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14205	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14210	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14211	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14212	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14213	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14214	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14215	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14216	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19043	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19200	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:20916	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-35091	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2453169
https://bugzilla.redhat.com/show_bug.cgi?id=2453813	issue-trackingx_refsource_REDHAT

Impacted products

19 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:3.1.9-2.el10_1.1 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.1
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:3.1.10-1.el10_2.1 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	Unaffected: 0:3.1.9-1.el10_0.2 , < * (rpm) cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	Unaffected: 0:2.4.5-7.el7_9.3 , < * (rpm) cpe:/o:redhat:enterprise_linux:7::server
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:3.1.8-1.el8_10.1 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::appstream cpe:/a:redhat:enterprise_linux:8::crb cpe:/a:redhat:enterprise_linux:8::highavailability cpe:/a:redhat:enterprise_linux:8::resilientstorage
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	Unaffected: 0:3.1.0-3.el8_4.2 , < * (rpm) cpe:/a:redhat:rhel_aus:8.4::appstream cpe:/a:redhat:rhel_aus:8.4::highavailability cpe:/a:redhat:rhel_eus_long_life:8.4::appstream cpe:/a:redhat:rhel_eus_long_life:8.4::highavailability
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	Unaffected: 0:3.1.0-3.el8_4.2 , < * (rpm) cpe:/a:redhat:rhel_aus:8.4::appstream cpe:/a:redhat:rhel_aus:8.4::highavailability cpe:/a:redhat:rhel_eus_long_life:8.4::appstream cpe:/a:redhat:rhel_eus_long_life:8.4::highavailability
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	Unaffected: 0:3.1.5-2.el8_6.1 , < * (rpm) cpe:/a:redhat:rhel_aus:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::highavailability cpe:/a:redhat:rhel_tus:8.6::appstream cpe:/a:redhat:rhel_tus:8.6::highavailability
Red Hat	Red Hat Enterprise Linux 8.6 Telecommunications Update Service	Unaffected: 0:3.1.5-2.el8_6.1 , < * (rpm) cpe:/a:redhat:rhel_aus:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::highavailability cpe:/a:redhat:rhel_tus:8.6::appstream cpe:/a:redhat:rhel_tus:8.6::highavailability
Red Hat	Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions	Unaffected: 0:3.1.5-2.el8_6.1 , < * (rpm) cpe:/a:redhat:rhel_aus:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::highavailability cpe:/a:redhat:rhel_tus:8.6::appstream cpe:/a:redhat:rhel_tus:8.6::highavailability
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	Unaffected: 0:3.1.7-1.el8_8.1 , < * (rpm) cpe:/a:redhat:rhel_e4s:8.8::appstream cpe:/a:redhat:rhel_e4s:8.8::highavailability cpe:/a:redhat:rhel_tus:8.8::appstream cpe:/a:redhat:rhel_tus:8.8::highavailability
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	Unaffected: 0:3.1.7-1.el8_8.1 , < * (rpm) cpe:/a:redhat:rhel_e4s:8.8::appstream cpe:/a:redhat:rhel_e4s:8.8::highavailability cpe:/a:redhat:rhel_tus:8.8::appstream cpe:/a:redhat:rhel_tus:8.8::highavailability
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:3.1.9-2.el9_7.1 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb cpe:/a:redhat:enterprise_linux:9::highavailability cpe:/a:redhat:enterprise_linux:9::resilientstorage
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:3.1.10-1.el9_8.1 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb cpe:/a:redhat:enterprise_linux:9::highavailability cpe:/a:redhat:enterprise_linux:9::resilientstorage
Red Hat	Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions	Unaffected: 0:3.1.5-3.el9_0.1 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.0::appstream cpe:/a:redhat:rhel_e4s:9.0::highavailability cpe:/a:redhat:rhel_e4s:9.0::resilientstorage
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:3.1.7-1.el9_2.1 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2::appstream cpe:/a:redhat:rhel_e4s:9.2::highavailability cpe:/a:redhat:rhel_e4s:9.2::resilientstorage
Red Hat	Red Hat Enterprise Linux 9.4 Extended Update Support	Unaffected: 0:3.1.8-1.el9_4.1 , < * (rpm) cpe:/a:redhat:rhel_eus:9.4::appstream cpe:/a:redhat:rhel_eus:9.4::crb cpe:/a:redhat:rhel_eus:9.4::highavailability cpe:/a:redhat:rhel_eus:9.4::resilientstorage
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:3.1.9-2.el9_6.1 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6::appstream cpe:/a:redhat:rhel_eus:9.6::crb cpe:/a:redhat:rhel_eus:9.6::highavailability cpe:/a:redhat:rhel_eus:9.6::resilientstorage
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2026-04-01 11:48

Credits

Red Hat would like to thank Sebastián Alba Vives for reporting this issue.

Show details on NVD website

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CVE-2025-30472 (GCVE-0-2025-30472)

Vulnerability from cvelistv5 – Published: 2025-03-22 00:00 – Updated: 2025-11-03 18:09

Summary

Corosync through 3.1.9, if encryption is disabled or the attacker knows the encryption key, has a stack-based buffer overflow in orf_token_endian_convert in exec/totemsrp.c via a large UDP packet.

Severity

9 (Critical)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-121 - Stack-based Buffer Overflow

Assigner

mitre

References

4 references

URL	Tags
https://github.com/corosync/corosync/blob/73ba225…
https://github.com/corosync/corosync/issues/778
https://corosync.org
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

1 product

Vendor	Product	Version
Corosync	Corosync	Affected: 0 , ≤ 3.1.9 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2018-1084 (GCVE-0-2018-1084)

Vulnerability from cvelistv5 – Published: 2018-04-12 17:00 – Updated: 2024-08-05 03:51

Summary

corosync before version 2.4.4 is vulnerable to an integer overflow in exec/totemcrypto.c.

Severity

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-190

Assigner

redhat

References

6 references

URL	Tags
http://www.securityfocus.com/bid/103758	vdb-entryx_refsource_BID
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…	x_refsource_MISC
https://www.debian.org/security/2018/dsa-4174	vendor-advisoryx_refsource_DEBIAN
https://access.redhat.com/errata/RHSA-2018:1169	vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/4000-1/	vendor-advisoryx_refsource_UBUNTU
https://security.gentoo.org/glsa/202107-01	vendor-advisoryx_refsource_GENTOO

Impacted products

1 product

Vendor	Product	Version
unspecified	corosync	Affected: corosync 2.4.4

Date Public

2018-04-12 00:00

Show details on NVD website

JSON

To clipboard

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CVE-2013-0250 (GCVE-0-2013-0250)

Vulnerability from cvelistv5 – Published: 2014-06-06 14:00 – Updated: 2024-08-06 14:18

Summary

The init_nss_hash function in exec/totemcrypto.c in Corosync 2.0 before 2.3 does not properly initialize the HMAC key, which allows remote attackers to cause a denial of service (crash) via a crafted packet.

Severity

No CVSS data available.

CWE

n/a

Assigner

redhat

References

5 references

URL	Tags
http://secunia.com/advisories/52037	third-party-advisoryx_refsource_SECUNIA
https://github.com/corosync/corosync/commit/b3f45…	x_refsource_CONFIRM
http://seclists.org/oss-sec/2013/q1/213	mailing-listx_refsource_MLIST
http://seclists.org/oss-sec/2013/q1/214	mailing-listx_refsource_MLIST
http://seclists.org/oss-sec/2013/q1/212	mailing-listx_refsource_MLIST

Date Public

2013-02-01 00:00

Show details on NVD website

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Find a vulnerability

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5 vulnerabilities by corosync

CVE-2026-35092 (GCVE-0-2026-35092)

CVE-2026-35091 (GCVE-0-2026-35091)

CVE-2025-30472 (GCVE-0-2025-30472)

CVE-2018-1084 (GCVE-0-2018-1084)

CVE-2013-0250 (GCVE-0-2013-0250)

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Search criteria ⓘ Use this form to refine search results. Full-text search supports keyword queries with ranking and filtering. You can combine vendor, product, and sources to narrow results. Enable “Apply ordering” to sort by date instead of relevance.

5 vulnerabilities by corosync

CVE-2026-35092 (GCVE-0-2026-35092)

CVE-2026-35091 (GCVE-0-2026-35091)

CVE-2025-30472 (GCVE-0-2025-30472)

CVE-2018-1084 (GCVE-0-2018-1084)

CVE-2013-0250 (GCVE-0-2013-0250)

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