CVE-2024-3096

PHP function password_verify can erroneously return true when argument contains NUL

In PHP version 8.1.* before 8.1.28, 8.2.* before 8.2.18, 8.3.* before 8.3.5, if a password stored with password_hash() starts with a null byte (\x00), testing a blank string as the password via password_verify() will incorrectly return true.

Affected

PHP Group · PHP

CVSS v3.1 PHP

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS

1.49% chance of exploitation in the next 30 days, 74th percentile

Published

2024-04-29

Updated

2025-11-04

Proof-of-concept exploits (1)

• php/php-src/security/advisories/GHSA-h746-cjrr-wfmr

Security advisories

• https://security.netapp.com/advisory/ntap-20240510-0010

References

• CVE Record
• NVD entry