CVE-2025-1734
Streams HTTP wrapper does not fail for headers with invalid name and no colon
5.3
MEDIUM
CVSS 3.1
EPSS 0.76%
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 receiving headers from HTTP server, the headers missing a colon (:) are treated as valid headers even though they are not. This may confuse applications into accepting invalid headers.
How to fix CVE-2025-1734
To remediate CVE-2025-1734, upgrade the affected package to a fixed version below.
- —upgrade to 8.1.32 or later
- —upgrade to 8.1.32 or later
- —upgrade to 8.1.32 or later
- —upgrade to 7.4.33-1+deb11u8 or later
- —upgrade to 8.2.28-1~deb12u1 or later
- —upgrade to 8.4.5-1 or later
Is CVE-2025-1734 being exploited?
Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.
Affected packages (6)
- from 0, < 8.1.32, >= 8.2.0, < 8.2.28, >= 8.3.0, < 8.3.19, >= 8.4.0, < 8.4.5
- from 0, < 8.1.32, >= 8.2.0, < 8.2.28, >= 8.3.0, < 8.3.19, >= 8.4.0, < 8.4.5
- from 0, < 8.1.32, >= 8.2.0, < 8.2.28, >= 8.3.0, < 8.3.19, >= 8.4.0, < 8.4.5
- from 0, < 7.4.33-1+deb11u8
- from 0, < 8.2.28-1~deb12u1
- from 0, < 8.4.5-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |