CVE-2026-7568
Detail
Modified After Enrichment
This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
Description
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.
Metrics
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/RE:L/U:Amber
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 Severity and Vector Strings:
Base
Score:
NVD assessment
not yet provided.
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Weakness Enumeration
| CWE-ID |
CWE Name |
Source |
|
CWE-125
|
Out-of-bounds Read |
PHP Group
|
|
CWE-190
|
Integer Overflow or Wraparound |
redhat-SADP
PHP Group
|
Change History
5 change records found show changes
CVE Modified by redhat-SADP
6/29/2026 11:21:21 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CVSS V3.1 |
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
|
| Added |
CWE |
CWE-190
|
| Added |
Reference |
https://access.redhat.com/errata/RHSA-2026:22142
|
| Added |
Reference |
https://access.redhat.com/errata/RHSA-2026:22143
|
| Added |
Reference |
https://access.redhat.com/errata/RHSA-2026:22305
|
| Added |
Reference |
https://access.redhat.com/errata/RHSA-2026:22649
|
| Added |
Reference |
https://access.redhat.com/errata/RHSA-2026:23388
|
| Added |
Reference |
https://access.redhat.com/security/cve/CVE-2026-7568
|
| Added |
Reference |
https://bugzilla.redhat.com/show_bug.cgi?id=2468566
|
| Added |
Reference |
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7568.json
|
| Added |
Affected |
[{"vendor":"Red Hat","product":"Red Hat Enterprise Linux AppStream (v. 10)","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:10.2"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux AppStream (v. 8)","defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:8::appstream"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux AppStream (v. 9)","defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:9::appstream"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","defaultStatus":"unaffected","cpes":["cpe:/o:redhat:enterprise_linux:6"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","defaultStatus":"unaffected","cpes":["cpe:/o:redhat:enterprise_linux:7"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","defaultStatus":"unaffected","cpes":["cpe:/o:redhat:enterprise_linux:8"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"unaffected","cpes":["cpe:/o:redhat:enterprise_linux:9"]},{"vendor":"Red Hat","product":"Red Hat Hardened Images","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:hummingbird:1"]}]
|
CVE Modified by CISA-ADP
6/17/2026 7:02:36 AM
| Action |
Type |
Old Value |
New Value |
| Added |
SSVC |
{"timestamp":"2026-05-11T13:25:08.120406Z","id":"CVE-2026-7568","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}
|
CVE Modified by PHP Group
6/17/2026 7:02:36 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Affected |
[{"vendor":"PHP Group","product":"PHP","defaultStatus":"affected","versions":[{"version":"8.2.*","lessThan":"8.2.31","versionType":"semver","status":"affected"},{"version":"8.3.*","lessThan":"8.3.31","versionType":"semver","status":"affected"},{"version":"8.4.*","lessThan":"8.4.21","versionType":"semver","status":"affected"},{"version":"8.5.*","lessThan":"8.5.6","versionType":"semver","status":"affected"}]}]
|
Initial Analysis by NIST
5/12/2026 1:38:55 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CVSS V3.1 |
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
|
| Added |
CPE Configuration |
OR
*cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 8.4.0 up to (excluding) 8.4.21
*cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 8.5.0 up to (excluding) 8.5.6
*cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 8.3.0 up to (excluding) 8.3.31
*cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 8.2.0 up to (excluding) 8.2.31
|
| Added |
Reference Type |
PHP Group: https://github.com/php/php-src/security/advisories/GHSA-96wq-48vp-hh57 Types: Vendor Advisory
|
New CVE Received from PHP Group
5/10/2026 1:16:11 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Description |
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.
|
| Added |
CVSS V4.0 |
AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:L/U:Amber
|
| Added |
CWE |
CWE-125
|
| Added |
CWE |
CWE-190
|
| Added |
Reference |
https://github.com/php/php-src/security/advisories/GHSA-96wq-48vp-hh57
|
Quick Info
CVE Dictionary Entry: CVE-2026-7568 NVD
Published Date: 05/10/2026 NVD
Last Modified: 06/29/2026
Source: PHP Group
|
