httpd: mod_rewrite potential open redirect
Published Sep 25, 2019
6.1
MEDIUMCVSS 3.1
EPSS 73.98%
Description
In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an unexpected URL within the request URL.
Affected products
- Vendor n/a Product Apache HTTP Server Defaultn/a
- Version 2.4.0 to 2.4.39StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Apache HTTP Server | n/a |
|
- ≥ 2.4.0 · ≤ 2.4.39
No data.
JBoss Core Services Apache HTTP Server 2.4.37 SP2
httpd
Fixed · RHSA-2020:1336
JBoss Core Services on RHEL 6
jbcs-httpd24-apr-0:1.6.3-86.jbcs.el6
Fixed · RHSA-2020:1337
JBoss Core Services on RHEL 6
jbcs-httpd24-brotli-0:1.0.6-21.jbcs.el6
Fixed · RHSA-2020:1337
JBoss Core Services on RHEL 6
jbcs-httpd24-httpd-0:2.4.37-52.jbcs.el6
Fixed · RHSA-2020:1337
JBoss Core Services on RHEL 6
jbcs-httpd24-mod_cluster-native-0:1.3.12-41.Final_redhat_2.jbcs.el6
Fixed · RHSA-2020:1337
JBoss Core Services on RHEL 6
jbcs-httpd24-mod_http2-0:1.11.3-22.jbcs.el6
Fixed · RHSA-2020:1337
JBoss Core Services on RHEL 6
jbcs-httpd24-openssl-1:1.1.1c-16.jbcs.el6
Fixed · RHSA-2020:1337
JBoss Core Services on RHEL 7
jbcs-httpd24-apr-0:1.6.3-86.jbcs.el7
Fixed · RHSA-2020:1337
JBoss Core Services on RHEL 7
jbcs-httpd24-brotli-0:1.0.6-21.jbcs.el7
Fixed · RHSA-2020:1337
JBoss Core Services on RHEL 7
jbcs-httpd24-httpd-0:2.4.37-52.jbcs.el7
Fixed · RHSA-2020:1337
JBoss Core Services on RHEL 7
jbcs-httpd24-mod_cluster-native-0:1.3.12-41.Final_redhat_2.jbcs.el7
Fixed · RHSA-2020:1337
JBoss Core Services on RHEL 7
jbcs-httpd24-mod_http2-0:1.11.3-22.jbcs.el7
Fixed · RHSA-2020:1337
JBoss Core Services on RHEL 7
jbcs-httpd24-openssl-1:1.1.1c-16.jbcs.el7
Fixed · RHSA-2020:1337
Red Hat Enterprise Linux 7
httpd-0:2.4.6-95.el7
Fixed · RHSA-2020:3958
Red Hat Enterprise Linux 8
httpd:2.4-8030020200818000036.30b713e6
Fixed · RHSA-2020:4751
Red Hat Software Collections for Red Hat Enterprise Linux 6
httpd24-httpd-0:2.4.34-18.el6
Fixed · RHSA-2020:2263
Red Hat Software Collections for Red Hat Enterprise Linux 7
httpd24-httpd-0:2.4.34-18.el7
Fixed · RHSA-2020:2263
Red Hat Software Collections for Red Hat Enterprise Linux 7
httpd24-mod_md-1:2.0.8-1.el7
Fixed · RHSA-2020:2263
Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS
httpd24-httpd-0:2.4.34-18.el7
Fixed · RHSA-2020:2263
Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS
httpd24-mod_md-1:2.0.8-1.el7
Fixed · RHSA-2020:2263
Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS
httpd24-httpd-0:2.4.34-18.el7
Fixed · RHSA-2020:2263
Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS
httpd24-mod_md-1:2.0.8-1.el7
Fixed · RHSA-2020:2263
Red Hat Enterprise Linux 5
httpd
Out of support scope
Red Hat Enterprise Linux 6
httpd
Out of support scope
Red Hat JBoss Enterprise Web Server 2
httpd
Out of support scope
Red Hat JBoss Enterprise Web Server 2
httpd22
Out of support scope
Red Hat JBoss Web Server 3
httpd24
Out of support scope
| Product | Package | State | Advisory |
|---|---|---|---|
| JBoss Core Services Apache HTTP Server 2.4.37 SP2 | httpd | Fixed | RHSA-2020:1336 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-apr-0:1.6.3-86.jbcs.el6 | Fixed | RHSA-2020:1337 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-brotli-0:1.0.6-21.jbcs.el6 | Fixed | RHSA-2020:1337 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-httpd-0:2.4.37-52.jbcs.el6 | Fixed | RHSA-2020:1337 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-mod_cluster-native-0:1.3.12-41.Final_redhat_2.jbcs.el6 | Fixed | RHSA-2020:1337 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-mod_http2-0:1.11.3-22.jbcs.el6 | Fixed | RHSA-2020:1337 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-openssl-1:1.1.1c-16.jbcs.el6 | Fixed | RHSA-2020:1337 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-apr-0:1.6.3-86.jbcs.el7 | Fixed | RHSA-2020:1337 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-brotli-0:1.0.6-21.jbcs.el7 | Fixed | RHSA-2020:1337 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-httpd-0:2.4.37-52.jbcs.el7 | Fixed | RHSA-2020:1337 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-mod_cluster-native-0:1.3.12-41.Final_redhat_2.jbcs.el7 | Fixed | RHSA-2020:1337 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-mod_http2-0:1.11.3-22.jbcs.el7 | Fixed | RHSA-2020:1337 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-openssl-1:1.1.1c-16.jbcs.el7 | Fixed | RHSA-2020:1337 |
| Red Hat Enterprise Linux 7 | httpd-0:2.4.6-95.el7 | Fixed | RHSA-2020:3958 |
| Red Hat Enterprise Linux 8 | httpd:2.4-8030020200818000036.30b713e6 | Fixed | RHSA-2020:4751 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | httpd24-httpd-0:2.4.34-18.el6 | Fixed | RHSA-2020:2263 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | httpd24-httpd-0:2.4.34-18.el7 | Fixed | RHSA-2020:2263 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | httpd24-mod_md-1:2.0.8-1.el7 | Fixed | RHSA-2020:2263 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS | httpd24-httpd-0:2.4.34-18.el7 | Fixed | RHSA-2020:2263 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS | httpd24-mod_md-1:2.0.8-1.el7 | Fixed | RHSA-2020:2263 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS | httpd24-httpd-0:2.4.34-18.el7 | Fixed | RHSA-2020:2263 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS | httpd24-mod_md-1:2.0.8-1.el7 | Fixed | RHSA-2020:2263 |
| Red Hat Enterprise Linux 5 | httpd | Out of support scope | n/a |
| Red Hat Enterprise Linux 6 | httpd | Out of support scope | n/a |
| Red Hat JBoss Enterprise Web Server 2 | httpd | Out of support scope | n/a |
| Red Hat JBoss Enterprise Web Server 2 | httpd22 | Out of support scope | n/a |
| Red Hat JBoss Web Server 3 | httpd24 | Out of support scope | n/a |
No package ranges for this CVE.
Remediation
Red Hat mitigation
This flaw requires the use of certain Rewrite configuration directives. The following command can be used to search for possible vulnerable configurations: grep -R '^\s*Rewrite' /etc/httpd/ See https://httpd.apache.org/docs/2.4/mod/mod_rewrite.html
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
AV:N/AC:M/Au:N/C:P/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 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (67 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 73.98% (0.73981) | 99.47th | v5 (v2026.06.15) |
| Jun 15, 2026 | 73.98% (0.73981) | 99.41th | v5 (v2026.06.15) |
| Apr 29, 2026 | 77.40% (0.77398) | 98.99th | v4 (v2025.03.14) |
| Mar 17, 2026 | 80.31% (0.80306) | 99.10th | v4 (v2025.03.14) |
| Mar 4, 2026 | 77.92% (0.77919) | 98.98th | v4 (v2025.03.14) |
| Mar 1, 2026 | 71.37% (0.71372) | 98.70th | v4 (v2025.03.14) |
| Feb 4, 2026 | 77.92% (0.77919) | 98.97th | v4 (v2025.03.14) |
| Feb 1, 2026 | 71.37% (0.71372) | 98.69th | v4 (v2025.03.14) |
| Jan 4, 2026 | 77.92% (0.77919) | 98.96th | v4 (v2025.03.14) |
| Jan 3, 2026 | 71.37% (0.71372) | 98.68th | v4 (v2025.03.14) |
| Jan 1, 2026 | 75.17% (0.75175) | 98.84th | v4 (v2025.03.14) |
| Dec 28, 2025 | 77.40% (0.77398) | 98.93th | v4 (v2025.03.14) |
| Dec 27, 2025 | 84.71% (0.84709) | 99.30th | v4 (v2025.03.14) |
| Dec 4, 2025 | 77.40% (0.77398) | 98.92th | v4 (v2025.03.14) |
| Dec 1, 2025 | 75.17% (0.75175) | 98.83th | v4 (v2025.03.14) |
| Nov 21, 2025 | 77.40% (0.77398) | 98.92th | v4 (v2025.03.14) |
| Nov 18, 2025 | 36.29% (0.36289) | 96.90th | v4 (v2025.03.14) |
| Nov 4, 2025 | 77.40% (0.77398) | 98.93th | v4 (v2025.03.14) |
| Nov 1, 2025 | 75.17% (0.75175) | 98.83th | v4 (v2025.03.14) |
| Oct 28, 2025 | 77.40% (0.77398) | 98.93th | v4 (v2025.03.14) |
| Oct 27, 2025 | 84.71% (0.84709) | 99.29th | v4 (v2025.03.14) |
| Oct 4, 2025 | 77.40% (0.77398) | 98.94th | v4 (v2025.03.14) |
| Oct 1, 2025 | 75.17% (0.75175) | 98.84th | v4 (v2025.03.14) |
| Sep 22, 2025 | 84.71% (0.84709) | 99.29th | v4 (v2025.03.14) |
| Sep 4, 2025 | 85.80% (0.85804) | 99.34th | v4 (v2025.03.14) |
| Sep 1, 2025 | 81.03% (0.81028) | 99.13th | v4 (v2025.03.14) |
| Aug 17, 2025 | 85.80% (0.85804) | 99.33th | v4 (v2025.03.14) |
| Aug 4, 2025 | 87.09% (0.87094) | 99.40th | v4 (v2025.03.14) |
| Aug 1, 2025 | 83.00% (0.82997) | 99.21th | v4 (v2025.03.14) |
| Jul 30, 2025 | 87.09% (0.87094) | 99.40th | v4 (v2025.03.14) |
| Jul 4, 2025 | 81.46% (0.81459) | 99.11th | v4 (v2025.03.14) |
| Jul 1, 2025 | 74.56% (0.74556) | 98.79th | v4 (v2025.03.14) |
| Jun 4, 2025 | 81.46% (0.81459) | 99.12th | v4 (v2025.03.14) |
| Jun 1, 2025 | 74.56% (0.74556) | 98.78th | v4 (v2025.03.14) |
| May 15, 2025 | 81.46% (0.81459) | 99.11th | v4 (v2025.03.14) |
| May 4, 2025 | 79.25% (0.79248) | 98.99th | v4 (v2025.03.14) |
| May 1, 2025 | 71.37% (0.71372) | 98.63th | v4 (v2025.03.14) |
| Mar 30, 2025 | 79.25% (0.79248) | 99.01th | v4 (v2025.03.14) |
| Mar 29, 2025 | 82.49% (0.82493) | 99.03th | v4 (v2025.03.14) |
| Mar 28, 2025 | 79.25% (0.79248) | 99.01th | v4 (v2025.03.14) |
| Mar 24, 2025 | 66.73% (0.66731) | 98.44th | v4 (v2025.03.14) |
| Mar 23, 2025 | 79.25% (0.79248) | 99.00th | v4 (v2025.03.14) |
| Mar 18, 2025 | 66.73% (0.66731) | 98.44th | v4 (v2025.03.14) |
| Mar 17, 2025 | 79.25% (0.79248) | 99.02th | v4 (v2025.03.14) |
| Mar 8, 2025 | 22.33% (0.22330) | 96.60th | v3 (v2023.03.01) |
| Nov 11, 2024 | 21.03% (0.21029) | 96.54th | v3 (v2023.03.01) |
| Oct 25, 2024 | 19.75% (0.19751) | 96.43th | v3 (v2023.03.01) |
| Oct 23, 2024 | 17.79% (0.17787) | 96.26th | v3 (v2023.03.01) |
| Oct 6, 2024 | 14.24% (0.14235) | 95.80th | v3 (v2023.03.01) |
| Sep 18, 2024 | 16.68% (0.16675) | 96.12th | v3 (v2023.03.01) |
| May 22, 2024 | 14.39% (0.14386) | 95.73th | v3 (v2023.03.01) |
| Sep 1, 2023 | 10.59% (0.10593) | 94.29th | v3 (v2023.03.01) |
| Jul 30, 2023 | 8.31% (0.08306) | 93.48th | v3 (v2023.03.01) |
| Jun 27, 2023 | 7.27% (0.07268) | 93.08th | v3 (v2023.03.01) |
| Jun 16, 2023 | 8.90% (0.08904) | 93.70th | v3 (v2023.03.01) |
| May 25, 2023 | 1.88% (0.01875) | 86.65th | v3 (v2023.03.01) |
| May 9, 2023 | 1.47% (0.01465) | 84.72th | v3 (v2023.03.01) |
| Mar 17, 2023 | 1.29% (0.01289) | 83.70th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.24% (0.01237) | 83.30th | v3 (v2023.03.01) |
| Mar 6, 2023 | 43.52% (0.43518) | 98.33th | v2 (v2022.01.01) |
| Apr 1, 2022 | 43.52% (0.43518) | 98.14th | v2 (v2022.01.01) |
| Feb 4, 2022 | 62.77% (0.62774) | 98.72th | v2 (v2022.01.01) |
| Feb 3, 2022 | 34.02% (0.34016) | 97.73th | v1 |
| Sep 1, 2021 | 34.02% (0.34016) | 98.77th | v1 |
| Jun 15, 2021 | 34.02% (0.34016) | 0.00th | v1 |
| Jun 8, 2021 | 32.74% (0.32736) | 0.00th | v1 |
| Apr 14, 2021 | 31.41% (0.31406) | 0.00th | v1 |
References (21)
- http://www.openwall.com/lists/oss-security/2020/04/01/4 mailing-listx_refsource_MLIST
- https://access.redhat.com/security/cve/CVE-2019-10098 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1743959 Issue Tracking
- https://httpd.apache.org/security/vulnerabilities_24.html x_refsource_MISCVendor Advisory
- https://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r3c5c3104813c1c5508b55564b66546933079250a46ce50eee90b2e36%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r5d12ffc80685b0df1d6801e68000a7707dd694fe32e4f221de67c210%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rd2fb621142e7fa187cfe12d7137bf66e7234abcbbcd800074c84a538%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2019-10098
- https://www.cve.org/CVERecord?id=CVE-2019-10098
- https://www.oracle.com/security-alerts/cpuApr2021.html x_refsource_MISC
- https://www.oracle.com/security-alerts/cpuapr2020.html x_refsource_MISC
- https://www.oracle.com/security-alerts/cpujan2020.html x_refsource_MISC
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html x_refsource_MISC
Change history (0)
No recorded changes yet.