CVE-2024-3096

Name: CVE-2024-3096
Creator: NVD / NIST
Published: 2024-04-29T04:15:08.35+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.48%

Last modified Jun 17, 2026

CVE-2024-3096 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 1.48% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

1.48%

70.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Php	Php	>= 8.1.0, < 8.1.28
Php	Php	>= 8.2.0, < 8.2.18
Php	Php	>= 8.3.0, < 8.3.5
Debian	Debian Linux	10.0

References

http://www.openwall.com/lists/oss-security/2024/04/12/11Mailing List
https://github.com/php/php-src/security/advisories/GHSA-h746-cjrr-wfmrExploit, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2024/05/msg00005.htmlMailing List
https://security.netapp.com/advisory/ntap-20240510-0010/Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/04/12/11Mailing List
https://github.com/php/php-src/security/advisories/GHSA-h746-cjrr-wfmrExploit, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2024/05/msg00005.htmlMailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KJZK3X6B7FBE32FETDSMRLJXTFTHKWSY/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZGWIK3HMBACERGB4TSBB2JUOMPYY2VKY/
https://security.netapp.com/advisory/ntap-20240510-0010/Third Party Advisory

Timeline

Published: Apr 29, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-3096?

How severe is CVE-2024-3096?

CVE-2024-3096 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.48% probability of exploitation in the next 30 days.

How do I fix CVE-2024-3096?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-3096?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST