What is CVE-2026-7260?

CVE-2026-7260 is a medium-severity vulnerability in PHP, classified under Stack-based Buffer Overflow. CVSS score: 5.5/10. Published 2026-07-30.

How severe is CVE-2026-7260?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Buffer overflow in PHP

CVE-2026-7260

Circular symbolic links in phar archives could lead to unbounded recursion, exhausting the C stack and crashing the PHP process, in PHP versions from 8.2.* before 8.2.33, from 8.3.* before 8.3.33, from 8.4.* before 8.4.24, and from 8.5.* before 8.5.9.

Vulnerability class: Buffer Overflow

EPSS: 0.001 (1.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Php
Php Group — versions 8.2.*, 8.3.*, 8.4.*

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

security@php.net (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-7260?: CVE-2026-7260 is a medium-severity vulnerability in PHP, classified under Stack-based Buffer Overflow. CVSS score: 5.5/10. Published 2026-07-30.
How severe is CVE-2026-7260?: Medium severity. CVSS v3 base score is 5.5 out of 10.