CVE-2025-1861 - CVE House
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Status published Medium CVE-2025-1861

Stream HTTP wrapper truncates redirect location to 1024 bytes

Vulnerability 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 parsing HTTP redirect in the response to an HTTP request, there is currently limit on the location value size caused by limited size of the location buffer to 1024. However as per RFC9110, the limit is recommended to be 8000. This may lead to incorrect URL truncation and redirecting to a wrong location.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Jakub Zelenka

References

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Affected Vendor

Affected Software

PHP
Vulnerable Versions:
8.1.*, 8.2.*, 8.3.*, 8.4.*

Timeline

Official Publish: March 30th, 2025
Last Modified: November 3rd, 2025
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-131

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.