Bug 2494813 (CVE-2026-13149) - CVE-2026-13149 brace-expansion: Brace-expansion: Denial of Service due to exponential-time complexity
Summary: CVE-2026-13149 brace-expansion: Brace-expansion: Denial of Service due to exp...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2026-13149
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2494949 2494950 2494951 2494952 2494953 2494954 2494955 2494956 2494957 2494958 2494961 2494962 2494964 2494965 2494967 2494968 2494969 2494970 2494972 2494976 2494977 2494944 2494945 2494946 2494947 2494948 2494959 2494960 2494963 2494966 2494971 2494973 2494974 2494975 2494978 2494979
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-30 10:01 UTC by OSIDB Bzimport
Modified: 2026-09-10 23:25 UTC (History)
186 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2026-08-05 11:14:39 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:47057 0 None None None 2026-07-29 00:16:02 UTC
Red Hat Product Errata RHSA-2026:47058 0 None None None 2026-07-29 00:20:58 UTC
Red Hat Product Errata RHSA-2026:47059 0 None None None 2026-07-28 17:15:14 UTC
Red Hat Product Errata RHSA-2026:47060 0 None None None 2026-07-28 15:41:41 UTC
Red Hat Product Errata RHSA-2026:48032 0 None None None 2026-07-29 17:27:49 UTC
Red Hat Product Errata RHSA-2026:48033 0 None None None 2026-07-29 17:53:26 UTC
Red Hat Product Errata RHSA-2026:48034 0 None None None 2026-07-29 17:52:44 UTC
Red Hat Product Errata RHSA-2026:48151 0 None None None 2026-07-29 19:53:48 UTC
Red Hat Product Errata RHSA-2026:52394 0 None None None 2026-08-10 01:33:39 UTC
Red Hat Product Errata RHSA-2026:52399 0 None None None 2026-08-10 02:41:18 UTC
Red Hat Product Errata RHSA-2026:53298 0 None None None 2026-08-11 06:38:05 UTC
Red Hat Product Errata RHSA-2026:57590 0 None None None 2026-08-20 16:07:10 UTC
Red Hat Product Errata RHSA-2026:66488 0 None None None 2026-09-10 16:37:06 UTC
Red Hat Product Errata RHSA-2026:66545 0 None None None 2026-09-10 23:25:06 UTC

Description OSIDB Bzimport 2026-06-30 10:01:23 UTC 
brace-expansion through 5.0.6 is vulnerable to denial of service. The expand() function exhibits exponential-time complexity in the number of consecutive non-expanding '{}' brace groups. An attacker who passes a crafted string to expand(), directly or transitively, can cause significant CPU consumption and event-loop blocking. The max option does not mitigate this, as it bounds the output size rather than the recursion work.
Comment 3 errata-xmlrpc 2026-07-28 15:41:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:47060 https://access.redhat.com/errata/RHSA-2026:47060
Comment 4 errata-xmlrpc 2026-07-28 17:15:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:47059 https://access.redhat.com/errata/RHSA-2026:47059
Comment 5 errata-xmlrpc 2026-07-29 00:15:54 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:47057 https://access.redhat.com/errata/RHSA-2026:47057
Comment 6 errata-xmlrpc 2026-07-29 00:20:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:47058 https://access.redhat.com/errata/RHSA-2026:47058
Comment 7 errata-xmlrpc 2026-07-29 17:27:40 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:48032 https://access.redhat.com/errata/RHSA-2026:48032
Comment 8 errata-xmlrpc 2026-07-29 17:52:36 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:48034 https://access.redhat.com/errata/RHSA-2026:48034
Comment 9 errata-xmlrpc 2026-07-29 17:53:17 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:48033 https://access.redhat.com/errata/RHSA-2026:48033
Comment 10 errata-xmlrpc 2026-07-29 19:53:39 UTC 
This issue has been addressed in the following products:

  Cryostat 4 on RHEL 9

Via RHSA-2026:48151 https://access.redhat.com/errata/RHSA-2026:48151
Comment 13 errata-xmlrpc 2026-08-10 01:33:29 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:52394 https://access.redhat.com/errata/RHSA-2026:52394
Comment 14 errata-xmlrpc 2026-08-10 02:41:09 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:52399 https://access.redhat.com/errata/RHSA-2026:52399
Comment 15 errata-xmlrpc 2026-08-11 06:37:57 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:53298 https://access.redhat.com/errata/RHSA-2026:53298
Comment 16 errata-xmlrpc 2026-08-20 16:07:01 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:57590 https://access.redhat.com/errata/RHSA-2026:57590
Comment 17 errata-xmlrpc 2026-09-10 16:36:56 UTC 
This issue has been addressed in the following products:

  Red Hat AMQ Broker 7.14.1

Via RHSA-2026:66488 https://access.redhat.com/errata/RHSA-2026:66488
Comment 18 errata-xmlrpc 2026-09-10 23:24:57 UTC 
This issue has been addressed in the following products:

  Red Hat AMQ Broker 7.13.6

Via RHSA-2026:66545 https://access.redhat.com/errata/RHSA-2026:66545
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