Bug 2499675 (CVE-2026-15588) - CVE-2026-15588 GDBusServer: glib2: GDBusServer pre-authentication DoS via unbounded SASL line buffering
Summary: CVE-2026-15588 GDBusServer: glib2: GDBusServer pre-authentication DoS via unb...
Keywords:
Status: NEW
Alias: CVE-2026-15588
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2500599 2500600 2500601 2500602
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-13 13:51 UTC by OSIDB Bzimport
Modified: 2026-09-09 03:28 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2026:57606 0 None None None 2026-08-20 16:35:10 UTC
Red Hat Product Errata RHBA-2026:58991 0 None None None 2026-08-24 12:47:52 UTC
Red Hat Product Errata RHBA-2026:61344 0 None None None 2026-08-31 09:10:10 UTC
Red Hat Product Errata RHBA-2026:61808 0 None None None 2026-09-01 00:25:58 UTC
Red Hat Product Errata RHBA-2026:62574 0 None None None 2026-09-02 10:22:19 UTC
Red Hat Product Errata RHSA-2026:55440 0 None None None 2026-08-17 05:48:56 UTC
Red Hat Product Errata RHSA-2026:57015 0 None None None 2026-08-19 16:42:05 UTC
Red Hat Product Errata RHSA-2026:61766 0 None None None 2026-08-31 19:29:30 UTC
Red Hat Product Errata RHSA-2026:65762 0 None None None 2026-09-09 02:27:04 UTC
Red Hat Product Errata RHSA-2026:65763 0 None None None 2026-09-09 03:09:53 UTC
Red Hat Product Errata RHSA-2026:65767 0 None None None 2026-09-09 02:59:51 UTC
Red Hat Product Errata RHSA-2026:65768 0 None None None 2026-09-09 03:27:35 UTC
Red Hat Product Errata RHSA-2026:65769 0 None None None 2026-09-09 03:04:31 UTC
Red Hat Product Errata RHSA-2026:65770 0 None None None 2026-09-09 03:28:36 UTC
Red Hat Product Errata RHSA-2026:65771 0 None None None 2026-09-09 02:59:34 UTC
Red Hat Product Errata RHSA-2026:65773 0 None None None 2026-09-09 03:15:04 UTC

Description OSIDB Bzimport 2026-07-13 13:51:10 UTC 
A `GDBus` authentication denial-of-service / resource exhaustion flaw has been reported. The vulnerability involves a lack of line length limitations when `gdbusauth` reads input from a client. This can be exploited by an unauthenticated remote or local attacker to cause excessive memory and CPU consumption.
Comment 2 errata-xmlrpc 2026-08-17 05:48:55 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:55440 https://access.redhat.com/errata/RHSA-2026:55440
Comment 3 errata-xmlrpc 2026-08-19 16:42:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:57015 https://access.redhat.com/errata/RHSA-2026:57015
Comment 4 errata-xmlrpc 2026-08-31 19:29:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:61766 https://access.redhat.com/errata/RHSA-2026:61766
Comment 5 errata-xmlrpc 2026-09-09 02:27:02 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:65762 https://access.redhat.com/errata/RHSA-2026:65762
Comment 6 errata-xmlrpc 2026-09-09 02:59:32 UTC 
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-2026:65771 https://access.redhat.com/errata/RHSA-2026:65771
Comment 7 errata-xmlrpc 2026-09-09 02:59:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:65767 https://access.redhat.com/errata/RHSA-2026:65767
Comment 8 errata-xmlrpc 2026-09-09 03:04:29 UTC 
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 Extended Update Support Long-Life Add-On

Via RHSA-2026:65769 https://access.redhat.com/errata/RHSA-2026:65769
Comment 9 errata-xmlrpc 2026-09-09 03:09:52 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:65763 https://access.redhat.com/errata/RHSA-2026:65763
Comment 10 errata-xmlrpc 2026-09-09 03:15:02 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2026:65773 https://access.redhat.com/errata/RHSA-2026:65773
Comment 11 errata-xmlrpc 2026-09-09 03:27:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:65768 https://access.redhat.com/errata/RHSA-2026:65768
Comment 12 errata-xmlrpc 2026-09-09 03:28:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:65770 https://access.redhat.com/errata/RHSA-2026:65770
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