Bug 2468566 (CVE-2026-7568) - CVE-2026-7568 php: signed integer overflow in metaphone()
Summary: CVE-2026-7568 php: signed integer overflow in metaphone()
Keywords:
Status: NEW
Alias: CVE-2026-7568
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-10 05:01 UTC by OSIDB Bzimport
Modified: 2026-06-04 15:53 UTC (History)
2 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 RHSA-2026:22142 0 None None None 2026-06-01 03:05:48 UTC
Red Hat Product Errata RHSA-2026:22143 0 None None None 2026-06-01 02:47:18 UTC
Red Hat Product Errata RHSA-2026:22305 0 None None None 2026-06-01 10:53:50 UTC
Red Hat Product Errata RHSA-2026:22649 0 None None None 2026-06-02 22:08:03 UTC
Red Hat Product Errata RHSA-2026:23388 0 None None None 2026-06-04 15:53:50 UTC

Description OSIDB Bzimport 2026-05-10 05:01:24 UTC 
In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the metaphone() function in ext/standard/metaphone.c uses a signed int variable to track the current position within the input string. If a string longer than 2,147,483,647 bytes is passed, a signed integer overflow occurs, resulting in undefined behavior. This can lead to an out-of-bounds read, causing a segmentation fault or access to unrelated memory, and may affect the availability of the PHP process.
Comment 2 errata-xmlrpc 2026-06-01 02:47:17 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:22143 https://access.redhat.com/errata/RHSA-2026:22143
Comment 3 errata-xmlrpc 2026-06-01 03:05:47 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:22142 https://access.redhat.com/errata/RHSA-2026:22142
Comment 4 errata-xmlrpc 2026-06-01 10:53:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:22305 https://access.redhat.com/errata/RHSA-2026:22305
Comment 5 errata-xmlrpc 2026-06-02 22:08:02 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:22649 https://access.redhat.com/errata/RHSA-2026:22649
Comment 6 errata-xmlrpc 2026-06-04 15:53:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:23388 https://access.redhat.com/errata/RHSA-2026:23388
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