CVE & CISA-KEV Catalog

CVE-2022-37436

MEDIUMEPSS 99th pctl
5.3
CVSS v3
NVD

Description

Prior to Apache HTTP Server 2.4.55, a malicious backend can cause the response headers to be truncated early, resulting in some headers being incorporated into the response body. If the later headers have any security purpose, they will not be interpreted by the client.

How to fix

Remediation Available
httpdAmazon
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
httpd-coreAmazon
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
httpd-core-debuginfoAmazon
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
httpd-debuginfoAmazon
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
httpd-debugsourceAmazon
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
httpd-develAmazon
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
httpd-filesystemAmazon
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2023
httpd-manualAmazon
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2023
httpd-toolsAmazon
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
httpd-tools-debuginfoAmazon
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
mod_ldapAmazon
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
mod_ldap-debuginfoAmazon
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
mod_luaAmazon
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
mod_lua-debuginfoAmazon
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
mod_mdAmazon
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2
mod_proxy_htmlAmazon
Fixed in:1:2.4.55-1.amzn2
Fixed in:1:2.4.55-1.amzn2
Fixed in:1:2.4.55-1.amzn2
Fixed in:1:2.4.55-1.amzn2023
Fixed in:1:2.4.55-1.amzn2023
Fixed in:1:2.4.55-1.amzn2023
mod_proxy_html-debuginfoAmazon
Fixed in:1:2.4.55-1.amzn2023
Fixed in:1:2.4.55-1.amzn2023
Fixed in:1:2.4.55-1.amzn2023
mod_sessionAmazon
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
mod_session-debuginfoAmazon
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
Fixed in:0:2.4.55-1.amzn2023
mod_sslAmazon
Fixed in:1:2.4.55-1.amzn2
Fixed in:1:2.4.55-1.amzn2
Fixed in:1:2.4.55-1.amzn2
Fixed in:1:2.4.55-1.amzn2023
Fixed in:1:2.4.55-1.amzn2023
Fixed in:1:2.4.55-1.amzn2023
mod_ssl-debuginfoAmazon
Fixed in:1:2.4.55-1.amzn2023
Fixed in:1:2.4.55-1.amzn2023
Fixed in:1:2.4.55-1.amzn2023
apache2Debian
Fixed in:2.4.55-1CVE-2022-37436
Fixed in:2.4.55-1CVE-2022-37436
Fixed in:2.4.55-1CVE-2022-37436
jbcs-httpd24-aprRocky
Fixed in:0:1.7.0-8.el7jbcsRHSA-2023:4629
Fixed in:0:1.7.0-8.el7jbcsRHSA-2023:4629
Fixed in:0:1.7.0-8.el8jbcsRHSA-2023:4629
Fixed in:0:1.7.0-8.el8jbcsRHSA-2023:4629
jbcs-httpd24-aprRed Hat / RHEL
Fixed in:0:1.7.0-8.el7jbcsRHSA-2023:4629

This Red Hat / RHEL release reached end-of-life on 2024-06-30. Extended security maintenance is available until 2029-05-31.

Fixed in:0:1.7.0-8.el7jbcsRHSA-2023:4629

This Red Hat / RHEL release reached end-of-life on 2024-06-30. Extended security maintenance is available until 2029-05-31.

Fixed in:0:1.7.0-8.el8jbcsRHSA-2023:4629
Fixed in:0:1.7.0-8.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-debuginfoRed Hat / RHEL
Fixed in:0:1.7.0-8.el7jbcsRHSA-2023:4629

This Red Hat / RHEL release reached end-of-life on 2024-06-30. Extended security maintenance is available until 2029-05-31.

Fixed in:0:1.7.0-8.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-debuginfoRocky
Fixed in:0:1.7.0-8.el7jbcsRHSA-2023:4629
Fixed in:0:1.7.0-8.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-develRocky
Fixed in:0:1.7.0-8.el7jbcsRHSA-2023:4629
Fixed in:0:1.7.0-8.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-develRed Hat / RHEL
Fixed in:0:1.7.0-8.el7jbcsRHSA-2023:4629

This Red Hat / RHEL release reached end-of-life on 2024-06-30. Extended security maintenance is available until 2029-05-31.

Fixed in:0:1.7.0-8.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-utilRocky
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-utilRed Hat / RHEL
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629

This Red Hat / RHEL release reached end-of-life on 2024-06-30. Extended security maintenance is available until 2029-05-31.

Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629

This Red Hat / RHEL release reached end-of-life on 2024-06-30. Extended security maintenance is available until 2029-05-31.

Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629

This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityLow
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Exploit Intelligence

60.99%probability of exploitation in 30 days
99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

Vendor Advisory1
Other references1

Related Vulnerabilities

Other CWE-113 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-52875High8.830%--
CVE-2016-5699Medium6.19.9%-Fix
CVE-2016-8024High8.18.7%--
CVE-2017-17742Medium5.35.5%-Fix
CVE-2016-5325Medium6.14.1%-Fix
CVE-2018-16979Medium6.13.0%--

Common questions

How do I fix CVE-2022-37436?

Published advisories record a fix for 128 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2022-37436 being actively exploited?

Not that we know of. CVE-2022-37436 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 61.0% is the estimated probability that it will be exploited in the next 30 days. That is higher than 99% of all scored CVEs.

How severe is CVE-2022-37436?

CVE-2022-37436 has a CVSS v3 base score of 5.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2022-37436 affect?

Published advisories record a fix for httpd (Amazon), httpd-core (Amazon), httpd-core-debuginfo (Amazon), httpd-debuginfo (Amazon), and 124 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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CVE-2022-37436 severity badge

Markdown

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-17.