php: HTTP response splitting in header() function
Published Aug 7, 2016
6.1
MEDIUMCVSS 3.0
EPSS 2.96%
Description
The sapi_header_op function in main/SAPI.c in PHP before 5.4.38, 5.5.x before 5.5.22, and 5.6.x before 5.6.6 supports deprecated line folding without considering browser compatibility, which allows remote attackers to conduct cross-site scripting (XSS) attacks against Internet Explorer by leveraging (1) %0A%20 or (2) %0D%0A%20 mishandling in the header function.
Affected products
No data.
- ≤ 5.4.37
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.1
- 5.5.2
- 5.5.3
- 5.5.4
- 5.5.5
- 5.5.6
- 5.5.7
- 5.5.8
- 5.5.9
- 5.5.10
- 5.5.11
- 5.5.12
- 5.5.13
- 5.5.14
- 5.5.18
- 5.5.19
- 5.5.20
- 5.5.21
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.1
- 5.6.2
- 5.6.3
- 5.6.4
- 5.6.5
No data.
Red Hat Software Collections for Red Hat Enterprise Linux 6
php54-0:2.0-1.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6
php54-php-0:5.4.40-1.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6
php54-php-pecl-zendopcache-0:7.0.4-3.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-php56-0:2.3-1.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-php56-php-0:5.6.25-1.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-php56-php-pear-1:1.9.5-4.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS
php54-0:2.0-1.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS
php54-php-0:5.4.40-1.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS
php54-php-pecl-zendopcache-0:7.0.4-3.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
php54-0:2.0-1.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
php54-php-0:5.4.40-1.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
php54-php-pecl-zendopcache-0:7.0.4-3.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-php56-0:2.3-1.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-php56-php-0:5.6.25-1.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-php56-php-pear-1:1.9.5-4.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7
php54-0:2.0-1.el7
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 7
php54-php-0:5.4.40-1.el7
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 7
php54-php-pecl-zendopcache-0:7.0.4-3.el7
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-php56-0:2.3-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-php56-php-0:5.6.25-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-php56-php-pear-1:1.9.5-4.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
rh-php56-0:2.3-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
rh-php56-php-0:5.6.25-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
rh-php56-php-pear-1:1.9.5-4.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
rh-php56-0:2.3-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
rh-php56-php-0:5.6.25-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
rh-php56-php-pear-1:1.9.5-4.el7
Fixed · RHSA-2016:2750
Red Hat Enterprise Linux 5
php
Will not fix
Red Hat Enterprise Linux 5
php53
Will not fix
Red Hat Enterprise Linux 6
php
Will not fix
Red Hat Enterprise Linux 7
php
Will not fix
Red Hat Software Collections
php55-php
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | php54-0:2.0-1.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | php54-php-0:5.4.40-1.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | php54-php-pecl-zendopcache-0:7.0.4-3.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-php56-0:2.3-1.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-php56-php-0:5.6.25-1.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-php56-php-pear-1:1.9.5-4.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS | php54-0:2.0-1.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS | php54-php-0:5.4.40-1.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS | php54-php-pecl-zendopcache-0:7.0.4-3.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS | php54-0:2.0-1.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS | php54-php-0:5.4.40-1.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS | php54-php-pecl-zendopcache-0:7.0.4-3.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | rh-php56-0:2.3-1.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | rh-php56-php-0:5.6.25-1.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | rh-php56-php-pear-1:1.9.5-4.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | php54-0:2.0-1.el7 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | php54-php-0:5.4.40-1.el7 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | php54-php-pecl-zendopcache-0:7.0.4-3.el7 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-php56-0:2.3-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-php56-php-0:5.6.25-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-php56-php-pear-1:1.9.5-4.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS | rh-php56-0:2.3-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS | rh-php56-php-0:5.6.25-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS | rh-php56-php-pear-1:1.9.5-4.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS | rh-php56-0:2.3-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS | rh-php56-php-0:5.6.25-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS | rh-php56-php-pear-1:1.9.5-4.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Enterprise Linux 5 | php | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | php53 | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | php | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | php | Will not fix | n/a |
| Red Hat Software Collections | php55-php | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
AV:N/AC:M/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.96% (0.02959) | 86.72th | v5 (v2026.06.15) |
| Sep 22, 2026 | 2.96% (0.02959) | 86.60th | v5 (v2026.06.15) |
| Sep 21, 2026 | 4.35% (0.04353) | 90.82th | v5 (v2026.06.15) |
| Sep 6, 2026 | 2.96% (0.02959) | 86.30th | v5 (v2026.06.15) |
| Sep 5, 2026 | 4.35% (0.04353) | 90.62th | v5 (v2026.06.15) |
| Aug 30, 2026 | 2.96% (0.02959) | 86.22th | v5 (v2026.06.15) |
| Aug 28, 2026 | 4.35% (0.04353) | 90.56th | v5 (v2026.06.15) |
| Aug 24, 2026 | 2.96% (0.02959) | 86.14th | v5 (v2026.06.15) |
| Aug 23, 2026 | 4.35% (0.04353) | 90.53th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.96% (0.02959) | 85.38th | v5 (v2026.06.15) |
| Jul 30, 2025 | 1.48% (0.01480) | 80.17th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.48% (0.00479) | 63.00th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.34% (0.00337) | 72.18th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.34% (0.00337) | 70.52th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.34% (0.00337) | 66.72th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (11)
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00004.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00025.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00003.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2016-2750.html vendor-advisoryx_refsource_REDHAT
- http://www.openwall.com/lists/oss-security/2016/06/20/3 mailing-listx_refsource_MLISTMailing ListPatch
- https://access.redhat.com/security/cve/CVE-2015-8935 Vendor Advisory
- https://bugs.php.net/bug.php?id=68978 x_refsource_CONFIRMIssue TrackingVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1348927 Issue Tracking
- https://github.com/php/php-src/commit/996faf964bba1aec06b153b370a7f20d3dd2bb8b?w=1 x_refsource_CONFIRMIssue TrackingPatch
- https://nvd.nist.gov/vuln/detail/CVE-2015-8935
- https://www.cve.org/CVERecord?id=CVE-2015-8935
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00004.html | vendor-advisoryx_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00025.html | vendor-advisoryx_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-updates/2016-08/msg00003.html | vendor-advisoryx_refsource_SUSE | |
| http://rhn.redhat.com/errata/RHSA-2016-2750.html | vendor-advisoryx_refsource_REDHAT | |
| http://www.openwall.com/lists/oss-security/2016/06/20/3 | mailing-listx_refsource_MLISTMailing ListPatch | |
| https://access.redhat.com/security/cve/CVE-2015-8935 | Vendor Advisory | |
| https://bugs.php.net/bug.php?id=68978 | x_refsource_CONFIRMIssue TrackingVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1348927 | Issue Tracking | |
| https://github.com/php/php-src/commit/996faf964bba1aec06b153b370a7f20d3dd2bb8b?w=1 | x_refsource_CONFIRMIssue TrackingPatch | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-8935 | ||
| https://www.cve.org/CVERecord?id=CVE-2015-8935 |
Change history (0)
No recorded changes yet.