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Vulnerability record · CVE-2024-3096 · published 29 April 2024

CVE-2024-3096: Php improper input validation vulnerability

Php · Php

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.

6.5 CVSS 3.1 Medium EPSS 1.5% · top 26.9% CWE-20 · Improper input validation
6.5CVSS 3.1 base score
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
10References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.openwall.com/lists/oss-security/2024/04/12/11 Mailing List
https://github.com/php/php-src/security/advisories/GHSA-h746-cjrr-wfmr ExploitVendor Advisory
https://lists.debian.org/debian-lts-announce/2024/05/msg00005.html Mailing List
https://security.netapp.com/advisory/ntap-20240510-0010/ Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/04/12/11 Mailing List
https://github.com/php/php-src/security/advisories/GHSA-h746-cjrr-wfmr ExploitVendor Advisory
https://lists.debian.org/debian-lts-announce/2024/05/msg00005.html Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/KJZK3X6B7FBE32FETDSMRLJXT
https://lists.fedoraproject.org/archives/list/[email protected]/message/ZGWIK3HMBACERGB4TSBB2JUOM
https://security.netapp.com/advisory/ntap-20240510-0010/ Third Party Advisory

Track CVE-2024-3096 inside VULONE

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Source: NIST National Vulnerability Database (record CVE-2024-3096), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.