by Kastro
Paper/Archive/CVE-2025-1861

CVE-2025-1861

PHP Group PHP — Stream HTTP wrapper truncates redirect location to 1024 bytes

EPSS 0.9%CVSS 9.8
critical.is priorityof 100
41
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 58.4.584 × 2011.7No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
PHP8.1.* – < 8.1.328.1.32CNA
PHP8.2.* – < 8.2.288.2.28CNA
PHP8.3.* – < 8.3.198.3.19CNA
PHP8.4.* – < 8.4.58.4.5CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
php (CNA)6.3CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

refgithub.com/php/php-src/security/advisories/GHSA-52jp-hrpf-2jffrefsecurity.netapp.com/advisory/ntap-20250523-0005reflists.debian.org/debian-lts-announce/2025/03/msg00014.html