Description
Apache HTTP server 2.4.32 to 2.4.44 mod_proxy_uwsgi info disclosure and possible RCE
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Apache HTTP Server | 2.4.32 to 2.4.44 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | apache2 | 2.4.46-1 | — |
| Debian 14 | uwsgi | No fix yet | — |
| Debian 13 | apache2 | 2.4.46-1 | — |
| Debian 13 | uwsgi | No fix yet | — |
| Debian 12 | apache2 | 2.4.46-1 | — |
| Debian 12 | uwsgi | No fix yet | — |
| Debian 10 | apache2 | 2.4.38-3+deb10u4 | DSA-4757-1 |
| Debian 9 | uwsgi | 2.0.14+20161117-3+deb9u3 | DLA-2362-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | apache2 | 2.4.41-4ubuntu3.1 | USN-4458-1 |
| Ubuntu 18.04 LTS | apache2 | 2.4.29-1ubuntu4.14 | USN-4458-1 |
| Ubuntu 18.04 LTS | uwsgi | 2.0.15-10.2ubuntu2.2 | USN-5054-1 |
| Ubuntu 16.04 LTS | apache2 | 2.4.18-2ubuntu3.17 | USN-4458-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | uwsgi | 2.0.12-5ubuntu3.2+esm1 | USN-5054-2 |
| Ubuntu Pro 14.04 LTS | uwsgi | 1.9.17.1-5ubuntu0.1+esm1 | USN-5054-2 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | httpd +6 | 2.4.37-39.module+el8.4.0+9658+b87b2deb | RHSA-2021:1809 |
| RHEL 8 | mod_http2 | 1.15.7-3.module+el8.4.0+8625+d397f3da | RHSA-2021:1809 |
| RHEL 8 | mod_md | 1:2.0.8-8.module+el8.3.0+6814+67d1e611 | RHSA-2021:1809 |
| RHEL 8 | mod_ssl +1 | 1:2.4.37-39.module+el8.4.0+9658+b87b2deb | RHSA-2021:1809 |
| RHEL 3 | httpd24-httpd +5 | 2.4.34-22.el7 | RHBA-2020:5280 |
| RHEL 3 | httpd24-mod_ssl +1 | 1:2.4.34-22.el7 | RHBA-2020:5280 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat JBoss Core Services 1 | jbcs-httpd24-apr +1 | 1.6.3-104.jbcs.el6 | RHSA-2020:4384 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-apr-util +8 | 1.6.1-75.jbcs.el6 | RHSA-2020:4384 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-brotli +1 | 1.0.6-38.jbcs.el6 | RHSA-2020:4384 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-curl +2 | 7.64.1-44.jbcs.el6 | RHSA-2020:4384 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-httpd +6 | 2.4.37-64.jbcs.el6 | RHSA-2020:4384 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-jansson +1 | 2.11-53.jbcs.el6 | RHSA-2020:4384 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_cluster-native | 1.3.14-11.Final_redhat_2.jbcs.el6 | RHSA-2020:4384 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_http2 | 1.15.7-11.jbcs.el6 | RHSA-2020:4384 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_jk +2 | 1.2.48-10.redhat_1.jbcs.el6 | RHSA-2020:4384 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_md | 1:2.0.8-30.jbcs.el6 | RHSA-2020:4384 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_security | 2.9.2-57.GA.jbcs.el6 | RHSA-2020:4384 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_ssl +1 | 1:2.4.37-64.jbcs.el6 | RHSA-2020:4384 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-nghttp2 +1 | 1.39.2-34.jbcs.el6 | RHSA-2020:4384 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-openssl +4 | 1:1.1.1c-32.jbcs.el6 | RHSA-2020:4384 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-openssl-chil | 1.0.0-1.jbcs.el7 | RHSA-2020:4384 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | mod_http2 | 1.15.7-3.module_el8.5.0+2609+b30d9eec | ALSA-2021:1809 |
| AlmaLinux 8 | mod_md | 1:2.0.8-8.module_el8.5.0+2609+b30d9eec | ALSA-2021:1809 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | httpd | 2.4.37-39.module+el8.4.0+571+fd70afb1 | RLSA-2021:1809 |
| Rocky Linux 8 | mod_http2 | 1.15.7-3.module+el8.4.0+553+7a69454b | RLSA-2021:1809 |
| Rocky Linux 8 | mod_md | 1:2.0.8-8.module+el8.4.0+553+7a69454b | RLSA-2021:1809 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | apache2 | 2.4.43-3.5.1 | SUSE-SU-2020:2311-1 |
| SLES 15 SP1 | apache2 | 2.4.33-3.33.1 | SUSE-SU-2020:2344-1 |
| SLES 15 | apache2 | 2.4.33-3.33.1 | SUSE-SU-2020:2344-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 | apache2 | 2.4.33-3.33.1 | SUSE-SU-2020:2344-1 |
| SLE HPC 15 | apache2 | 2.4.33-3.33.1 | SUSE-SU-2020:2344-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.2 | apache2 | 2.4.43-lp152.2.3.1 | openSUSE-SU-2020:1285-1 |
| openSUSE Leap 15.1 | apache2 | 2.4.33-lp151.8.15.1 | openSUSE-SU-2020:1293-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | apache2 | 2.4.46-r0 | — |
| Alpine v3.23 | apache2 | 2.4.46-r0 | — |
| Alpine v3.22 | apache2 | 2.4.46-r0 | — |
| Alpine v3.21 | apache2 | 2.4.46-r0 | — |
| Alpine v3.20 | apache2 | 2.4.46-r0 | — |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | apache2 | 2.4.46-r0 | — |
| Alpine v3.18 | apache2 | 2.4.46-r0 | — |
| Alpine v3.17 | apache2 | 2.4.46-r0 | — |
| Alpine v3.16 | apache2 | 2.4.46-r0 | — |
| Alpine v3.15 | apache2 | 2.4.46-r0 | — |
| Alpine v3.14 | apache2 | 2.4.46-r0 | — |
| Alpine v3.13 | apache2 | 2.4.46-r0 | — |
| Alpine v3.12 | apache2 | 2.4.46-r0 | — |
| Alpine v3.11 | apache2 | 2.4.46-r0 | — |
| Alpine v3.10 | apache2 | 2.4.46-r0 | — |
| Alpine v3.9 | apache2 | 2.4.46-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | httpd +7 | 2.4.46-1.amzn2 | ALAS2-2020-1490 |
| Amazon Linux 2 | mod_ssl +1 | 1:2.4.46-1.amzn2 | ALAS2-2020-1490 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | httpd +6 | 2.4.37-39.0.1.module+el8.4.0+20024+b87b2deb | ELSA-2021-1809 |
| Oracle Linux 8 | mod_http2 | 1.15.7-3.module+el8.4.0+20024+b87b2deb | ELSA-2021-1809 |
| Oracle Linux 8 | mod_md | 1:2.0.8-8.module+el8.3.0+7816+49791cfd | ELSA-2021-1809 |
| Oracle Linux 8 | mod_ssl +1 | 1:2.4.37-39.0.1.module+el8.4.0+20024+b87b2deb | ELSA-2021-1809 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
masahiro331/CVE-2020-11984 ★ 0 · Jun 30, 2025
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- Apache HTTP Server - Remote Code Execution http/cves/2020/CVE-2020-11984.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.
Advisories 20
- ALSA-2021:1809 Moderate: httpd:2.4 security, bug fix, and enhancement update AlmaLinux Security Advisories · Nov 2, 2026
- RHSA-2020:4384 Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP5 security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2021:1809 Red Hat Security Advisory: httpd:2.4 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHBA-2020:5280 Red Hat Bug Fix Advisory: httpd24 bug fix and enhancement update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- USN-5054-2 uwsgi vulnerability Ubuntu Security Notices (USN) · Jun 29, 2026
- USN-4458-1 apache2 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- USN-5054-1 uwsgi vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4757-1 apache2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2362-1 uwsgi - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:1809 Moderate: httpd:2.4 security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 5, 2026
- SUSE-SU-2020:2311-1 Security update for apache2 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1285-1 Security update for apache2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2344-1 Security update for apache2 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1293-1 Security update for apache2 SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-0063 Juniper Junos Space: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 8, 2025
- WID-SEC-2024-1591 Juniper JUNOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2024
- WID-SEC-2024-3319 Apache HTTP Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 31, 2024
- WID-SEC-2023-1048 Oracle Construction and Engineering: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 4, 2024
- ELSA-2021-1809 Moderate: httpd:2.4 security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 25, 2021
- ALAS2-2020-1490 Important: httpd security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Sep 16, 2020
References
- https://httpd.apache.org/security/vulnerabilities_24.html
- [oss-security] 20200808 Re: CVE-2020-11984: Apache httpd: mod_uwsgi buffer overlow mailing-list
- GLSA-202008-04 vendor-advisory
- [oss-security] 20200808 Re: CVE-2020-11984: Apache httpd: mod_uwsgi buffer overlow mailing-list
- [oss-security] 20200808 Re: CVE-2020-11984: Apache httpd: mod_uwsgi buffer overlow mailing-list
- [oss-security] 20200808 Re: CVE-2020-11984: Apache httpd: mod_uwsgi buffer overlow mailing-list
- [oss-security] 20200810 Re: CVE-2020-11984: Apache httpd: mod_uwsgi buffer overlow mailing-list
- [httpd-dev] 20200811 Which version fixed the CVE-2020-9490, CVE-2020-11984 and CVE-2020-11993 vulnerabilities? mailing-list
- [httpd-dev] 20200811 Re: Which version fixed the CVE-2020-9490, CVE-2020-11984 and CVE-2020-11993 vulnerabilities? mailing-list
- [oss-security] 20200817 Re: CVE-2020-11984: Apache httpd: mod_uwsgi buffer overlow mailing-list
- USN-4458-1 vendor-advisory
- openSUSE-SU-2020:1285 vendor-advisory
- openSUSE-SU-2020:1293 vendor-advisory
- FEDORA-2020-189a1e6c3e vendor-advisory
- DSA-4757 vendor-advisory
- [debian-lts-announce] 20200902 [SECURITY] [DLA 2362-1] uwsgi security update mailing-list
- FEDORA-2020-0d3d3f5072 vendor-advisory
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://security.netapp.com/advisory/ntap-20200814-0005/
- http://packetstormsecurity.com/files/159009/Apache2-mod_proxy_uwsgi-Incorrect-Request-Handling.html
- https://www.oracle.com/security-alerts/cpujan2021.html
- [httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1073143 [3/3] - in /websites/staging/httpd/trunk/content: ./ security/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1888194 [13/13] - /httpd/site/trunk/content/security/json/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1073140 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.ht mailing-list
- [httpd-cvs] 20210330 svn commit: r1073139 [12/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1888199 - /httpd/site/trunk/content/security/vulnerabilities-httpd.xml mailing-list
- [httpd-cvs] 20210330 svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1073149 [13/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1073171 - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-11984.json security/json/CVE-2020-11993.json security/vulnerabilities_24.html mailing-list
- [httpd-cvs] 20210330 svn commit: r1888228 - in /httpd/site/trunk/content/security/json: CVE-2020-11984.json CVE-2020-11993.json mailing-list
- [httpd-cvs] 20210606 svn commit: r1075470 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabiliti mailing-list