Product
HTTP Server
Description
The Apache HTTP Server Project is an effort to develop and maintain an open-source HTTP server for modern operating systems including UNIX and Windows.
Product name
http_server
Related organizations
CVE-2025-65082 (GCVE-0-2025-65082)
Vulnerability from – Published: 2025-12-05 10:46 – Updated: 2025-12-05 19:30
VLAI
EPSS
VEX
Title
Apache HTTP Server: CGI environment variable override
Summary
Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache HTTP Server through environment variables set via the Apache configuration unexpectedly superseding variables calculated by the server for CGI programs.
This issue affects Apache HTTP Server from 2.4.0 through 2.4.65.
Users are recommended to upgrade to version 2.4.66 which fixes the issue.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.0 , ≤ 2.4.65
(semver)
|
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CVE-2025-59775 (GCVE-0-2025-59775)
Vulnerability from – Published: 2025-12-05 10:17 – Updated: 2025-12-05 19:28
VLAI
EPSS
VEX
Title
Apache HTTP Server: NTLM Leakage on Windows through UNC SSRF
Summary
Server-Side Request Forgery (SSRF) vulnerability
in Apache HTTP Server on Windows
with AllowEncodedSlashes On and MergeSlashes Off allows to potentially leak NTLM
hashes to a malicious server via SSRF and malicious requests or content
Users are recommended to upgrade to version 2.4.66, which fixes the issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
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Affected:
2.4.0 , ≤ 2.4.65
(semver)
|
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CVE-2025-55753 (GCVE-0-2025-55753)
Vulnerability from – Published: 2025-12-05 10:12 – Updated: 2025-12-05 19:27
VLAI
EPSS
VEX
Title
Apache HTTP Server: mod_md (ACME), unintended retry intervals
Summary
An integer overflow in the case of failed ACME certificate renewal leads, after a number of failures (~30 days in default configurations), to the backoff timer becoming 0. Attempts to renew the certificate then are repeated without delays until it succeeds.
This issue affects Apache HTTP Server: from 2.4.30 before 2.4.66.
Users are recommended to upgrade to version 2.4.66, which fixes the issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
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Affected:
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(semver)
|
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CVE-2025-66200 (GCVE-0-2025-66200)
Vulnerability from – Published: 2025-12-05 11:02 – Updated: 2025-12-05 17:38
VLAI
EPSS
VEX
Title
Apache HTTP Server: mod_userdir+suexec bypass via AllowOverride FileInfo
Summary
mod_userdir+suexec bypass via AllowOverride FileInfo vulnerability in Apache HTTP Server. Users with access to use the RequestHeader directive in htaccess can cause some CGI scripts to run under an unexpected userid.
This issue affects Apache HTTP Server: from 2.4.7 through 2.4.65.
Users are recommended to upgrade to version 2.4.66, which fixes the issue.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- mod_userdir+suexec bypass via AllowOverride FileInfo
- CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
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|
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CVE-2024-27316 (GCVE-0-2024-27316)
Vulnerability from – Published: 2024-04-04 19:21 – Updated: 2025-11-04 22:06
VLAI
EPSS
VEX
Title
Apache HTTP Server: HTTP/2 DoS by memory exhaustion on endless continuation frames
Summary
HTTP/2 incoming headers exceeding the limit are temporarily buffered in nghttp2 in order to generate an informative HTTP 413 response. If a client does not stop sending headers, this leads to memory exhaustion.
Severity
7.5 (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
10 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.17 , ≤ 2.4.58
(semver)
|
|
| apache | http_server |
Affected:
2.4.17 , ≤ 2.4.58
(semver)
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* |
Credits
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CVE-2025-54090 (GCVE-0-2025-54090)
Vulnerability from – Published: 2025-07-23 13:19 – Updated: 2025-11-04 21:12
VLAI
EPSS
VEX
Title
Apache HTTP Server: 'RewriteCond expr' always evaluates to true in 2.4.64
Summary
A bug in Apache HTTP Server 2.4.64 results in all "RewriteCond expr ..." tests evaluating as "true".
Users are recommended to upgrade to version 2.4.65, which fixes the issue.
Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-253 - Incorrect Check of Function Return Value
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
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Affected:
2.4.64
(semver)
|
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CVE-2025-53020 (GCVE-0-2025-53020)
Vulnerability from – Published: 2025-07-10 16:59 – Updated: 2025-11-04 21:11
VLAI
EPSS
VEX
Title
Apache HTTP Server: HTTP/2 DoS by Memory Increase
Summary
Late Release of Memory after Effective Lifetime vulnerability in Apache HTTP Server.
This issue affects Apache HTTP Server: from 2.4.17 up to 2.4.63.
Users are recommended to upgrade to version 2.4.64, which fixes the issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.17 , ≤ 2.4.63
(semver)
|
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CVE-2025-49812 (GCVE-0-2025-49812)
Vulnerability from – Published: 2025-07-10 16:58 – Updated: 2025-11-04 21:11
VLAI
EPSS
VEX
Title
Apache HTTP Server: mod_ssl TLS upgrade attack
Summary
In some mod_ssl configurations on Apache HTTP Server versions through to 2.4.63, an HTTP desynchronisation attack allows a man-in-the-middle attacker to hijack an HTTP session via a TLS upgrade.
Only configurations using "SSLEngine optional" to enable TLS upgrades are affected. Users are recommended to upgrade to version 2.4.64, which removes support for TLS upgrade.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-287 - Improper Authentication
Assigner
References
5 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
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(semver)
|
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CVE-2025-49630 (GCVE-0-2025-49630)
Vulnerability from – Published: 2025-07-10 16:57 – Updated: 2025-11-04 21:11
VLAI
EPSS
VEX
Title
Apache HTTP Server: mod_proxy_http2 denial of service
Summary
In certain proxy configurations, a denial of service attack against Apache HTTP Server versions 2.4.26 through to 2.4.63 can be triggered by untrusted clients causing an assertion in mod_proxy_http2.
Configurations affected are a reverse proxy is configured for an HTTP/2 backend, with ProxyPreserveHost set to "on".
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-617 - Reachable Assertion
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.26 , ≤ 2.4.63
(semver)
|
Credits
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CVE-2024-47252 (GCVE-0-2024-47252)
Vulnerability from – Published: 2025-07-10 16:55 – Updated: 2025-11-04 21:08
VLAI
EPSS
VEX
Title
Apache HTTP Server: mod_ssl error log variable escaping
Summary
Insufficient escaping of user-supplied data in mod_ssl in Apache HTTP Server 2.4.63 and earlier allows an untrusted SSL/TLS client to insert escape characters into log files in some configurations.
In a logging configuration where CustomLog is used with "%{varname}x" or "%{varname}c" to log variables provided by mod_ssl such as SSL_TLS_SNI, no escaping is performed by either mod_log_config or mod_ssl and unsanitized data provided by the client may appear in log files.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
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|
Credits
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displaying 31 - 40 organizations in total 330