CVE-2024-2653
HIGH
Published Apr 3, 2024
Modified Apr 15, 2026
Description
amphp/http will collect CONTINUATION frames in an unbounded buffer and will not check a limit until it has received the set END_HEADERS flag, resulting in an OOM crash.
Is your site exposed to CVE-2024-2653?
Run a free security scan — no signup, results in seconds.
CVSS v3.1 Score
8.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
References
Other References
http://www.openwall.com/lists/oss-security/2024/04/03/16
https://github.com/amphp/http-client/security/advisories/GHSA-w8gf-g2vq-j2f4
https://github.com/amphp/http/security/advisories/GHSA-qjfw-cvjf-f4fm
http://www.openwall.com/lists/oss-security/2024/04/03/16
https://github.com/amphp/http-client/security/advisories/GHSA-w8gf-g2vq-j2f4
https://github.com/amphp/http/security/advisories/GHSA-qjfw-cvjf-f4fm
https://www.kb.cert.org/vuls/id/421644
Frequently Asked Questions
What is CVE-2024-2653? +
amphp/http will collect CONTINUATION frames in an unbounded buffer and will not check a limit until it has received the set END_HEADERS flag, resulting in an OOM crash. It has a CVSS v3.1 base score of 8.2 (HIGH).
How severe is CVE-2024-2653? +
CVE-2024-2653 has a CVSS v3.1 score of 8.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
How do I check if I'm vulnerable to CVE-2024-2653? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.