CVE-2025-1217

Public Exploit
Header parser of http stream wrapper does not handle folded headers

Description

In PHP from 8.1.* before 8.1.32, from 8.2.* before 8.2.28, from 8.3.* before 8.3.19, from 8.4.* before 8.4.5, when http request module parses HTTP response obtained from a server, folded headers are parsed incorrectly, which may lead to misinterpreting the response and using incorrect headers, MIME types, etc.

Categories

6.3
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.10%
Vendor Advisory github.com
Affected: PHP Group PHP
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2025-1217?
CVE-2025-1217 has been scored as a medium severity vulnerability.
How to fix CVE-2025-1217?
To fix CVE-2025-1217, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-1217 being actively exploited in the wild?
It is possible that CVE-2025-1217 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-1217?
CVE-2025-1217 affects PHP Group PHP.
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