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Fencer Vulns
medium 5.3

CVE-2025-1734 json

Streams HTTP wrapper does not fail for headers with invalid name and no colon

published 2025-03-13 19 mo ago modified 2026-09-08 2 mo ago also BIT-libphp-2025-1734 , BIT-php-2025-1734 , BIT-php-min-2025-1734 , EUVD-2025-9429 , GHSA-pcmh-g36c-qc44

cvss
5.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits
0
none known

Summary

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.

Patch / fix

  • bitnami libphp 8.1.32, 8.2.28, 8.3.19, 8.4.5
  • bitnami php 8.1.32, 8.2.28, 8.3.19, 8.4.5
  • bitnami php-min 8.1.32, 8.2.28, 8.3.19, 8.4.5
  • PHP Group PHP 8.1.32, 8.2.28, 8.3.19, 8.4.5
  • php8.2 Debian 12 8.2.28-1~deb12u1
  • php8.4 Debian 14, Debian 13 8.4.5-1

debian advisories DEBIAN-CVE-2025-1734

  • php7.4 Ubuntu 20.04 LTS 7.4.3-4ubuntu2.29
  • php8.1 Ubuntu 22.04 LTS 8.1.2-1ubuntu2.21
  • php8.3 Ubuntu 24.04 LTS 8.3.6-0ubuntu0.24.04.4
  • php7.0 Ubuntu Pro 16.04 LTS 7.0.33-0ubuntu0.16.04.16+esm15
  • php7.2 Ubuntu Pro 18.04 LTS 7.2.24-0ubuntu0.18.04.17+esm8

ubuntu advisories UBUNTU-CVE-2025-1734

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • php RHEL 8 7.4.33-3.module+el8.10.0+23902+d3c8dd8f
  • libzip RHEL 8 1.6.1-1.module+el8.10.0+22485+a3539972
  • php-gd RHEL 8 7.4.33-3.module+el8.10.0+23902+d3c8dd8f
  • php-cli RHEL 8 7.4.33-3.module+el8.10.0+23902+d3c8dd8f
  • php-dba RHEL 8 7.4.33-3.module+el8.10.0+23902+d3c8dd8f
  • php-dbg RHEL 8 7.4.33-3.module+el8.10.0+23902+d3c8dd8f
  • php-ffi RHEL 8 7.4.33-3.module+el8.10.0+23902+d3c8dd8f
  • php-fpm RHEL 8 7.4.33-3.module+el8.10.0+23902+d3c8dd8f

red hat advisories RHSA-2026:2470RHSA-2025:15687RHSA-2025:7489RHSA-2025:7432RHSA-2025:7431RHSA-2025:7418

  • php7 SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE High Performance Computing 15 SP3-LTSS +1 more 7.4.33-150200.3.76.1
  • php7 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 7.4.33-150400.4.48.1
  • php7-fpm SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 7.4.33-150400.4.48.1
  • php7-test openSUSE Leap 15.6 7.4.33-150400.4.48.1
  • php7-embed SLE Module for Package Hub 15 SP6, openSUSE Leap 15.6 7.4.33-150400.4.48.1
  • php7-fastcgi SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 7.4.33-150400.4.48.1
  • apache2-mod_php7 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 7.4.33-150400.4.48.1
  • php8 SLE Module for Web and Scripting 15 SP6, openSUSE Leap 15.6 8.2.28-150600.3.16.1

suse advisories SUSE-SU-2025:1026-1SUSE-SU-2025:1025-1SUSE-SU-2025:1012-1SUSE-SU-2025:0994-1

  • php8 openSUSE Tumbleweed 8.3.19-1.1

opensuse advisories openSUSE-SU-2025:14895-1

  • php AlmaLinux 8 7.4.33-3.module_el8.10.0+4114+3b36c618
  • libzip AlmaLinux 8 1.6.1-1.module_el8.6.0+3239+bedf0508
  • libzip AlmaLinux 8 1.6.1-1.module_el8.6.0+2750+78feabcb
  • libzip AlmaLinux 8 1.6.1-1.module_el8.10.0+3935+28808425
  • php-gd AlmaLinux 8 7.4.33-3.module_el8.10.0+4114+3b36c618
  • php-cli AlmaLinux 8 7.4.33-3.module_el8.10.0+4114+3b36c618
  • php-dba AlmaLinux 8 7.4.33-3.module_el8.10.0+4114+3b36c618
  • php-dbg AlmaLinux 8 7.4.33-3.module_el8.10.0+4114+3b36c618

almalinux advisories ALSA-2026:2470ALSA-2025:15687ALSA-2025:7418ALSA-2025:7431ALSA-2025:7432ALSA-2025:7489

  • libzip Rocky Linux 8 1.7.3-1.module+el8.10.0+1911+f499711e
  • libzip Rocky Linux 8 1.7.3-1.module+el8.10.0+1605+02e07af7
  • php-pear Rocky Linux 8 1:1.10.14-1.module+el8.10.0+1911+f499711e
  • php-pecl-rrd Rocky Linux 8 2.0.3-1.module+el8.10.0+1911+f499711e
  • php-pecl-rrd Rocky Linux 8 2.0.3-1.module+el8.10.0+1605+02e07af7
  • php-pecl-zip Rocky Linux 8 1.22.3-1.module+el8.10.0+1911+f499711e
  • php-pecl-apcu Rocky Linux 8 5.1.23-1.module+el8.10.0+1911+f499711e
  • php-pecl-xdebug3 Rocky Linux 8 3.2.2-2.module+el8.10.0+1911+f499711e

rocky linux advisories RLSA-2025:15687RLSA-2026:2470RLSA-2025:7431RLSA-2025:7489RLSA-2025:4263RLSA-2025:7418

  • php81 Alpine 3.19 8.1.32-r0
  • php82 Alpine 3.22, Alpine 3.21, Alpine 3.20 8.2.28-r0
  • php83 Alpine 3.24, Alpine 3.23, Alpine 3.22 +1 more 8.3.18-r0

alpine advisories ALPINE-CVE-2025-1734

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • php CBL-Mariner 2.0 8.1.32-1
  • php Azure Linux 3.0 8.3.19-1

azure linux advisories AZL-59315AZL-59334

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-1734 updated cvss 3.7

php: Streams HTTP wrapper does not fail for headers with invalid name and no colon

  • Red Hat Enterprise Linux 6 php, php-gd, php-cli, php-dba, php-fpm, php-pdo, +20 more Red Hat Enterprise Linux 7 php, php-gd, php-cli, php-dba, php-fpm, php-pdo, +18 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) php 7.4.33-3.module+el8.10.0+23902+d3c8dd8f, php 8.2.28-1.module+el8.10.0+23472+dcd7a400, libzip 1.6.1-1.module+el8.10.0+22485+a3539972, libzip 1.7.3-1.module+el8.10.0+20770+a5eca186, php-gd 7.4.33-3.module+el8.10.0+23902+d3c8dd8f, php-gd 8.2.28-1.module+el8.10.0+23472+dcd7a400, +60 more
    fixed: vendor fix RHSA-2026:2470
  • Red Hat Enterprise Linux AppStream (v. 9) php 8.0.30-3.el9_6, php-gd 8.0.30-3.el9_6, php-cli 8.0.30-3.el9_6, php-dba 8.0.30-3.el9_6, php-dbg 8.0.30-3.el9_6, php-ffi 8.0.30-3.el9_6, +106 more
    fixed: vendor fix RHSA-2025:4263
  • Red Hat Enterprise Linux AppStream (v. 10) php 8.3.19-1.el10_0, php-gd 8.3.19-1.el10_0, php-cli 8.3.19-1.el10_0, php-dba 8.3.19-1.el10_0, php-dbg 8.3.19-1.el10_0, php-ffi 8.3.19-1.el10_0, +18 more
    fixed: vendor fix RHSA-2025:7489

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
19 mo ago

Exploit prediction

0.50% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 6.3 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
CNA 4.0 6.3 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
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected packages

ecosystem package affected fixed in
bitnami libphp
<8.1.32
>=8.2.0, <8.2.28
>=8.3.0, <8.3.19
>=8.4.0, <8.4.5
8.1.32
8.2.28
8.3.19
8.4.5
bitnami php
<8.1.32
>=8.2.0, <8.2.28
>=8.3.0, <8.3.19
>=8.4.0, <8.4.5
8.1.32
8.2.28
8.3.19
8.4.5
bitnami php-min
<8.1.32
>=8.2.0, <8.2.28
>=8.3.0, <8.3.19
>=8.4.0, <8.4.5
8.1.32
8.2.28
8.3.19
8.4.5

Affected products

  • PHP Group PHP

Classification

Weakness
  • CWE-20 Improper Input Validation
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

The maintainers of php/php-src published their own advisory on GitHub. Reviewed sources take precedence over it.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.