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243 vulnerabilities found for Apache HTTP Server by Apache Software Foundation
CVE-2026-49975 (GCVE-0-2026-49975)
Vulnerability from nvd – Published: 2026-06-08 15:26 – Updated: 2026-06-09 15:25
VLAI
Title
Apache HTTP Server: mod_http2 denial of service
Summary
Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests.
This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.17 , ≤ 2.4.67
(semver)
|
Credits
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CVE-2026-48913 (GCVE-0-2026-48913)
Vulnerability from nvd – Published: 2026-06-08 15:24 – Updated: 2026-06-08 22:32
VLAI
Title
Apache HTTP Server: mod_http2 memory corruption when file handles exhausted
Summary
Use After Free vulnerability in Apache HTTP Server module mod_http2 when file handles are already exhausted.
This issue affects Apache HTTP Server: from 2.4.55 through 2.4.67.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://httpd.apache.org/security/vulnerabilities… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.55 , ≤ 2.4.67
(semver)
|
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CVE-2026-44631 (GCVE-0-2026-44631)
Vulnerability from nvd – Published: 2026-06-08 15:19 – Updated: 2026-06-08 22:32
VLAI
Title
Apache HTTP Server: Heap Underflow in `ap_regname` via Signed Char Overflow
Summary
Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration.
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-124 - Buffer Underwrite
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://httpd.apache.org/security/vulnerabilities… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
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(semver)
|
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CVE-2026-44186 (GCVE-0-2026-44186)
Vulnerability from nvd – Published: 2026-06-08 15:11 – Updated: 2026-06-09 12:20
VLAI
Title
Apache HTTP Server: Loop in `proxy_ftp_handler` in mod_proxy_ftp
Summary
Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in the mod_proxy_ftp module in Apache HTTP Server with an attacker controlled backend FTP server.
This issue affects undefined: from 2.4.0 through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://httpd.apache.org/security/vulnerabilities… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
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CVE-2026-44185 (GCVE-0-2026-44185)
Vulnerability from nvd – Published: 2026-06-08 15:22 – Updated: 2026-06-08 22:32
VLAI
Title
Apache HTTP Server: Stack Buffer Over-Read in mod_ssl OCSP `send_request`
Summary
Buffer Over-read vulnerability in Apache HTTP Server via outbound OCSP requests to an attacker controlled OCSP server
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-126 - Buffer Over-read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://httpd.apache.org/security/vulnerabilities… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
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1 product
| Vendor | Product | Version | |
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| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.0 , ≤ 2.4.67
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CVE-2026-44119 (GCVE-0-2026-44119)
Vulnerability from nvd – Published: 2026-06-08 15:17 – Updated: 2026-06-09 11:57
VLAI
Title
Apache HTTP Server: escalation of privilege through expressions in .htaccess in multiple modules
Summary
Improper Privilege Management vulnerability in Apache HTTP Server 2.4.67 and earlier allows local .htaccess authors to read files with the privileges of the httpd user.
This issue affects Apache HTTP Server: from through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://httpd.apache.org/security/vulnerabilities… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
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CVE-2026-43951 (GCVE-0-2026-43951)
Vulnerability from nvd – Published: 2026-06-08 15:16 – Updated: 2026-06-08 22:32
VLAI
Title
Apache HTTP Server: OOB Read in `merge_response_headers` can cause crash
Summary
Out-of-bounds Read vulnerability in Apache HTTP Server with mod_headers and mod_mime and multiple response languages.
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://httpd.apache.org/security/vulnerabilities… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
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| Apache Software Foundation | Apache HTTP Server |
Affected:
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CVE-2026-42536 (GCVE-0-2026-42536)
Vulnerability from nvd – Published: 2026-06-08 15:23 – Updated: 2026-06-08 22:32
VLAI
Title
Apache HTTP Server: mod_xml2enc heap overflow
Summary
Heap-based Buffer Overflow vulnerability in Apache HTTP Server with mod_xml2enc, xml2StartParse, and untrusted content
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
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| Apache Software Foundation | Apache HTTP Server |
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CVE-2026-42535 (GCVE-0-2026-42535)
Vulnerability from nvd – Published: 2026-06-08 15:14 – Updated: 2026-06-09 12:13
VLAI
Title
Apache HTTP Server: mod_dav_fs protected directory access
Summary
A path handling issue in mod_dav_fs in Apache 2.4.67 and earlier allows a WebDAV content author to directly manipulate trusted DAV property databases, potentially causing child process crashes.
Users are recommended to upgrade to version 2.4.68, which fixes this issue.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-668 - Exposure of Resource to Wrong Sphere
Assigner
References
2 references
Impacted products
1 product
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Affected:
0 , ≤ 2.4.67
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CVE-2026-34356 (GCVE-0-2026-34356)
Vulnerability from nvd – Published: 2026-06-08 15:12 – Updated: 2026-06-08 22:32
VLAI
Title
Apache HTTP Server: ProxyPassReverseCookieMap buffer overflow
Summary
Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassReverseCookie*
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Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
2 references
Impacted products
1 product
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CVE-2026-34355 (GCVE-0-2026-34355)
Vulnerability from nvd – Published: 2026-06-08 15:20 – Updated: 2026-06-08 22:32
VLAI
Title
Apache HTTP Server: mod_proxy_html buffer overflow
Summary
A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted backend.
Users are recommended to upgrade to version 2.4.68, which fixes this issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
2 references
Impacted products
1 product
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CVE-2026-29170 (GCVE-0-2026-29170)
Vulnerability from nvd – Published: 2026-06-08 15:10 – Updated: 2026-06-08 22:32
VLAI
Title
Apache HTTP Server: mod_proxy_ftp XSS
Summary
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Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
2 references
Impacted products
1 product
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CVE-2026-29167 (GCVE-0-2026-29167)
Vulnerability from nvd – Published: 2026-06-08 15:07 – Updated: 2026-06-09 12:31
VLAI
Title
Apache HTTP Server: mod_ldap per-dir use-after-free
Summary
Use After Free vulnerability in Apache HTTP Server with mod_ldap in per-directory configuration
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
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Affected:
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CVE-2026-28780 (GCVE-0-2026-28780)
Vulnerability from nvd – Published: 2026-05-05 21:29 – Updated: 2026-05-06 15:50
VLAI
Title
Apache HTTP Server: buffer overflow in mod_proxy_ajp via ajp_msg_check_header()
Summary
Heap-based Buffer Overflow vulnerability in mod_proxy_ajp of Apache HTTP Server.
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This issue affects Apache HTTP Server: through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes the issue.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
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Affected:
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CVE-2026-29168 (GCVE-0-2026-29168)
Vulnerability from nvd – Published: 2026-05-05 13:10 – Updated: 2026-05-05 16:31
VLAI
Title
Apache HTTP Server: mod_md unrestricted OCSP response
Summary
Allocation of Resources Without Limits or Throttling vulnerability in Apache HTTP Server's mod_md via OCSP response data.
This issue affects Apache HTTP Server: from 2.4.30 through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes the issue.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.30 , ≤ 2.4.66
(semver)
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* |
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CVE-2026-49975 (GCVE-0-2026-49975)
Vulnerability from cvelistv5 – Published: 2026-06-08 15:26 – Updated: 2026-06-09 15:25
VLAI
Title
Apache HTTP Server: mod_http2 denial of service
Summary
Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests.
This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
Impacted products
1 product
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CVE-2026-48913 (GCVE-0-2026-48913)
Vulnerability from cvelistv5 – Published: 2026-06-08 15:24 – Updated: 2026-06-08 22:32
VLAI
Title
Apache HTTP Server: mod_http2 memory corruption when file handles exhausted
Summary
Use After Free vulnerability in Apache HTTP Server module mod_http2 when file handles are already exhausted.
This issue affects Apache HTTP Server: from 2.4.55 through 2.4.67.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://httpd.apache.org/security/vulnerabilities… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
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1 product
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CVE-2026-42536 (GCVE-0-2026-42536)
Vulnerability from cvelistv5 – Published: 2026-06-08 15:23 – Updated: 2026-06-08 22:32
VLAI
Title
Apache HTTP Server: mod_xml2enc heap overflow
Summary
Heap-based Buffer Overflow vulnerability in Apache HTTP Server with mod_xml2enc, xml2StartParse, and untrusted content
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Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
2 references
Impacted products
1 product
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CVE-2026-44185 (GCVE-0-2026-44185)
Vulnerability from cvelistv5 – Published: 2026-06-08 15:22 – Updated: 2026-06-08 22:32
VLAI
Title
Apache HTTP Server: Stack Buffer Over-Read in mod_ssl OCSP `send_request`
Summary
Buffer Over-read vulnerability in Apache HTTP Server via outbound OCSP requests to an attacker controlled OCSP server
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-126 - Buffer Over-read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://httpd.apache.org/security/vulnerabilities… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
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| Apache Software Foundation | Apache HTTP Server |
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CVE-2026-34355 (GCVE-0-2026-34355)
Vulnerability from cvelistv5 – Published: 2026-06-08 15:20 – Updated: 2026-06-08 22:32
VLAI
Title
Apache HTTP Server: mod_proxy_html buffer overflow
Summary
A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted backend.
Users are recommended to upgrade to version 2.4.68, which fixes this issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
2 references
Impacted products
1 product
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CVE-2026-44631 (GCVE-0-2026-44631)
Vulnerability from cvelistv5 – Published: 2026-06-08 15:19 – Updated: 2026-06-08 22:32
VLAI
Title
Apache HTTP Server: Heap Underflow in `ap_regname` via Signed Char Overflow
Summary
Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration.
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-124 - Buffer Underwrite
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://httpd.apache.org/security/vulnerabilities… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
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| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.0 , ≤ 2.4.67
(semver)
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CVE-2026-44119 (GCVE-0-2026-44119)
Vulnerability from cvelistv5 – Published: 2026-06-08 15:17 – Updated: 2026-06-09 11:57
VLAI
Title
Apache HTTP Server: escalation of privilege through expressions in .htaccess in multiple modules
Summary
Improper Privilege Management vulnerability in Apache HTTP Server 2.4.67 and earlier allows local .htaccess authors to read files with the privileges of the httpd user.
This issue affects Apache HTTP Server: from through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://httpd.apache.org/security/vulnerabilities… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
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1 product
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Affected:
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CVE-2026-43951 (GCVE-0-2026-43951)
Vulnerability from cvelistv5 – Published: 2026-06-08 15:16 – Updated: 2026-06-08 22:32
VLAI
Title
Apache HTTP Server: OOB Read in `merge_response_headers` can cause crash
Summary
Out-of-bounds Read vulnerability in Apache HTTP Server with mod_headers and mod_mime and multiple response languages.
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://httpd.apache.org/security/vulnerabilities… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
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| Apache Software Foundation | Apache HTTP Server |
Affected:
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CVE-2026-42535 (GCVE-0-2026-42535)
Vulnerability from cvelistv5 – Published: 2026-06-08 15:14 – Updated: 2026-06-09 12:13
VLAI
Title
Apache HTTP Server: mod_dav_fs protected directory access
Summary
A path handling issue in mod_dav_fs in Apache 2.4.67 and earlier allows a WebDAV content author to directly manipulate trusted DAV property databases, potentially causing child process crashes.
Users are recommended to upgrade to version 2.4.68, which fixes this issue.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-668 - Exposure of Resource to Wrong Sphere
Assigner
References
2 references
Impacted products
1 product
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Affected:
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CVE-2026-34356 (GCVE-0-2026-34356)
Vulnerability from cvelistv5 – Published: 2026-06-08 15:12 – Updated: 2026-06-08 22:32
VLAI
Title
Apache HTTP Server: ProxyPassReverseCookieMap buffer overflow
Summary
Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassReverseCookie*
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
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| Apache Software Foundation | Apache HTTP Server |
Affected:
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CVE-2026-44186 (GCVE-0-2026-44186)
Vulnerability from cvelistv5 – Published: 2026-06-08 15:11 – Updated: 2026-06-09 12:20
VLAI
Title
Apache HTTP Server: Loop in `proxy_ftp_handler` in mod_proxy_ftp
Summary
Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in the mod_proxy_ftp module in Apache HTTP Server with an attacker controlled backend FTP server.
This issue affects undefined: from 2.4.0 through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://httpd.apache.org/security/vulnerabilities… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
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CVE-2026-29170 (GCVE-0-2026-29170)
Vulnerability from cvelistv5 – Published: 2026-06-08 15:10 – Updated: 2026-06-08 22:32
VLAI
Title
Apache HTTP Server: mod_proxy_ftp XSS
Summary
A cross-site scripting vulnerability exists in mod_proxy_ftp's HTML directory list generation in Apache HTTP Server 2.4.67 and earlier when listing FTP directory contents either via forward or reverse proxy configuration.
Users are recommended to upgrade to version 2.4.68, which fixes this issue.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
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Affected:
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CVE-2026-29167 (GCVE-0-2026-29167)
Vulnerability from cvelistv5 – Published: 2026-06-08 15:07 – Updated: 2026-06-09 12:31
VLAI
Title
Apache HTTP Server: mod_ldap per-dir use-after-free
Summary
Use After Free vulnerability in Apache HTTP Server with mod_ldap in per-directory configuration
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Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
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CVE-2026-28780 (GCVE-0-2026-28780)
Vulnerability from cvelistv5 – Published: 2026-05-05 21:29 – Updated: 2026-05-06 15:50
VLAI
Title
Apache HTTP Server: buffer overflow in mod_proxy_ajp via ajp_msg_check_header()
Summary
Heap-based Buffer Overflow vulnerability in mod_proxy_ajp of Apache HTTP Server.
If mod_proxy_ajp connects to a malicious AJP server this AJP server can send a malicious AJP message back to mod_proxy_ajp and cause it to write 4 attacker controlled bytes after the end of a heap based buffer.
This issue affects Apache HTTP Server: through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes the issue.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
0 , ≤ 2.4.66
(semver)
|
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CVE-2026-29168 (GCVE-0-2026-29168)
Vulnerability from cvelistv5 – Published: 2026-05-05 13:10 – Updated: 2026-05-05 16:31
VLAI
Title
Apache HTTP Server: mod_md unrestricted OCSP response
Summary
Allocation of Resources Without Limits or Throttling vulnerability in Apache HTTP Server's mod_md via OCSP response data.
This issue affects Apache HTTP Server: from 2.4.30 through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes the issue.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.30 , ≤ 2.4.66
(semver)
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* |
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