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918 vulnerabilities found for http_server by apache
FKIE_CVE-2025-58098
Vulnerability from fkie_nvd - Published: 2025-12-05 14:15 - Updated: 2025-12-08 19:36
Severity ?
Summary
Apache HTTP Server 2.4.65 and earlier with Server Side Includes (SSI) enabled and mod_cgid (but not mod_cgi) passes the shell-escaped query string to #exec cmd="..." directives.
This issue affects Apache HTTP Server before 2.4.66.
Users are recommended to upgrade to version 2.4.66, which fixes the issue.
References
| URL | Tags | ||
|---|---|---|---|
| security@apache.org | https://httpd.apache.org/security/vulnerabilities_24.html | Mailing List, Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | http://www.openwall.com/lists/oss-security/2025/12/04/5 | Mailing List, Third Party Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| apache | http_server | * |
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FKIE_CVE-2025-65082
Vulnerability from fkie_nvd - Published: 2025-12-05 11:15 - Updated: 2025-12-10 16:39
Severity ?
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.
References
| URL | Tags | ||
|---|---|---|---|
| security@apache.org | https://httpd.apache.org/security/vulnerabilities_24.html | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | http://www.openwall.com/lists/oss-security/2025/12/04/7 | Issue Tracking, Third Party Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| apache | http_server | * |
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FKIE_CVE-2025-59775
Vulnerability from fkie_nvd - Published: 2025-12-05 11:15 - Updated: 2025-12-10 16:40
Severity ?
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.
References
| URL | Tags | ||
|---|---|---|---|
| security@apache.org | https://httpd.apache.org/security/vulnerabilities_24.html | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | http://www.openwall.com/lists/oss-security/2025/12/04/6 | Issue Tracking, Third Party Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| apache | http_server | * |
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FKIE_CVE-2025-66200
Vulnerability from fkie_nvd - Published: 2025-12-05 11:15 - Updated: 2025-12-10 16:39
Severity ?
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.
References
| URL | Tags | ||
|---|---|---|---|
| security@apache.org | https://httpd.apache.org/security/vulnerabilities_24.html | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | http://www.openwall.com/lists/oss-security/2025/12/04/8 | Issue Tracking, Third Party Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| apache | http_server | * |
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"lastModified": "2025-12-10T16:39:43.707",
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FKIE_CVE-2025-55753
Vulnerability from fkie_nvd - Published: 2025-12-05 11:15 - Updated: 2025-12-10 16:39
Severity ?
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.
References
| URL | Tags | ||
|---|---|---|---|
| security@apache.org | https://httpd.apache.org/security/vulnerabilities_24.html | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | http://www.openwall.com/lists/oss-security/2025/12/04/4 | Issue Tracking, Third Party Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| apache | http_server | * |
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FKIE_CVE-2025-54090
Vulnerability from fkie_nvd - Published: 2025-07-23 14:15 - Updated: 2025-11-04 22:16
Severity ?
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.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| apache | http_server | 2.4.64 |
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FKIE_CVE-2025-53020
Vulnerability from fkie_nvd - Published: 2025-07-10 17:15 - Updated: 2025-11-04 22:16
Severity ?
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.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| apache | http_server | * |
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"type": "Secondary"
}
]
}
FKIE_CVE-2025-49630
Vulnerability from fkie_nvd - Published: 2025-07-10 17:15 - Updated: 2025-11-04 22:16
Severity ?
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".
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| apache | http_server | * |
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},
{
"lang": "es",
"value": "En ciertas configuraciones de proxy, un ataque de denegaci\u00f3n de servicio contra Apache HTTP Server, versiones 2.4.26 a 2.4.63, puede ser provocado por clientes no confiables que generen una aserci\u00f3n en mod_proxy_http2. Las configuraciones afectadas son las que tienen un proxy inverso configurado para un backend HTTP/2, con ProxyPreserveHost activado."
}
],
"id": "CVE-2025-49630",
"lastModified": "2025-11-04T22:16:18.307",
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FKIE_CVE-2025-49812
Vulnerability from fkie_nvd - Published: 2025-07-10 17:15 - Updated: 2025-11-04 22:16
Severity ?
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.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| apache | http_server | * |
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},
{
"lang": "es",
"value": "En algunas configuraciones de mod_ssl en las versiones de Apache HTTP Server hasta la 2.4.63, un ataque de desincronizaci\u00f3n HTTP permite a un atacante intermediario secuestrar una sesi\u00f3n HTTP mediante una actualizaci\u00f3n de TLS. Solo se ven afectadas las configuraciones que utilizan \"SSLEngine opcional\" para habilitar las actualizaciones de TLS. Se recomienda a los usuarios actualizar a la versi\u00f3n 2.4.64, que elimina la compatibilidad con la actualizaci\u00f3n de TLS."
}
],
"id": "CVE-2025-49812",
"lastModified": "2025-11-04T22:16:18.607",
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FKIE_CVE-2024-43394
Vulnerability from fkie_nvd - Published: 2025-07-10 17:15 - Updated: 2025-11-04 22:16
Severity ?
Summary
Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via
mod_rewrite or apache expressions that pass unvalidated request input.
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.63.
Note: The Apache HTTP Server Project will be setting a higher bar for accepting vulnerability reports regarding SSRF via UNC paths.
The server offers limited protection against administrators directing the server to open UNC paths.
Windows servers should limit the hosts they will connect over via SMB based on the nature of NTLM authentication.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| apache | http_server | * | |
| microsoft | windows | - |
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}
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},
{
"lang": "es",
"value": "Server-Side Request Forgery (SSRF) en Apache HTTP Server en Windows permite filtrar hashes NTLM a un servidor malicioso mediante mod_rewrite o expresiones de Apache que pasan una entrada de solicitud no validada. Este problema afecta al servidor HTTP Apache desde la versi\u00f3n 2.4.0 hasta la 2.4.63. Nota: El proyecto del servidor HTTP Apache establecer\u00e1 un est\u00e1ndar m\u00e1s estricto para la aceptaci\u00f3n de informes de vulnerabilidad relacionados con SSRF mediante rutas UNC. El servidor ofrece protecci\u00f3n limitada contra administradores que le indiquen que abra rutas UNC. Los servidores Windows deben limitar los hosts a los que se conectan mediante SMB seg\u00fan la naturaleza de la autenticaci\u00f3n NTLM."
}
],
"id": "CVE-2024-43394",
"lastModified": "2025-11-04T22:16:03.600",
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FKIE_CVE-2024-47252
Vulnerability from fkie_nvd - Published: 2025-07-10 17:15 - Updated: 2025-11-04 22:16
Severity ?
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.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| apache | http_server | * |
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{
"criteria": "cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C552FA45-1E0F-4F3A-BB99-8E4604C82820",
"versionEndExcluding": "2.4.64",
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}
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"operator": "OR"
}
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}
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},
{
"lang": "es",
"value": "Un escape insuficiente de los datos proporcionados por el usuario en mod_ssl en Apache HTTP Server 2.4.63 y versiones anteriores permite que un cliente SSL/TLS no confiable inserte caracteres de escape en los archivos de registro en algunas configuraciones. En una configuraci\u00f3n de registro donde se usa CustomLog con \"%{varname}x\" o \"%{varname}c\" para registrar variables proporcionadas por mod_ssl, como SSL_TLS_SNI, ni mod_log_config ni mod_ssl realizan ning\u00fan escape, y los datos no saneados proporcionados por el cliente pueden aparecer en los archivos de registro."
}
],
"id": "CVE-2024-47252",
"lastModified": "2025-11-04T22:16:04.060",
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FKIE_CVE-2025-23048
Vulnerability from fkie_nvd - Published: 2025-07-10 17:15 - Updated: 2025-11-04 22:16
Severity ?
Summary
In some mod_ssl configurations on Apache HTTP Server 2.4.35 through to 2.4.63, an access control bypass by trusted clients is possible using TLS 1.3 session resumption.
Configurations are affected when mod_ssl is configured for multiple virtual hosts, with each restricted to a different set of trusted client certificates (for example with a different SSLCACertificateFile/Path setting). In such a case, a client trusted to access one virtual host may be able to access another virtual host, if SSLStrictSNIVHostCheck is not enabled in either virtual host.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| apache | http_server | * |
{
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},
{
"lang": "es",
"value": "En algunas configuraciones de mod_ssl en Apache HTTP Server (versi\u00f3n 2.4.35 a 2.4.63), es posible que los clientes de confianza omitan el control de acceso mediante la reanudaci\u00f3n de sesi\u00f3n TLS 1.3. Las configuraciones se ven afectadas cuando mod_ssl se configura para varios hosts virtuales, cada uno restringido a un conjunto diferente de certificados de cliente de confianza (por ejemplo, con una configuraci\u00f3n SSLCACertificateFile/Path diferente). En tal caso, un cliente con acceso de confianza a un host virtual podr\u00eda acceder a otro si SSLStrictSNIVHostCheck no est\u00e1 habilitado en ninguno de los hosts virtuales."
}
],
"id": "CVE-2025-23048",
"lastModified": "2025-11-04T22:16:06.920",
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FKIE_CVE-2024-42516
Vulnerability from fkie_nvd - Published: 2025-07-10 17:15 - Updated: 2025-11-04 22:16
Severity ?
Summary
HTTP response splitting in the core of Apache HTTP Server allows an attacker who can manipulate the Content-Type response headers of applications hosted or proxied by the server can split the HTTP response.
This vulnerability was described as CVE-2023-38709 but the patch included in Apache HTTP Server 2.4.59 did not address the issue.
Users are recommended to upgrade to version 2.4.64, which fixes this issue.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| apache | http_server | * |
{
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{
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"versionEndExcluding": "2.4.64",
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}
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}
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},
{
"lang": "es",
"value": "La divisi\u00f3n de la respuesta HTTP en el n\u00facleo de Apache HTTP Server permite que un atacante que manipule los encabezados de respuesta Content-Type de las aplicaciones alojadas o proxyizadas por el servidor pueda dividir la respuesta HTTP. Esta vulnerabilidad se describi\u00f3 como CVE-2023-38709, pero el parche incluido en Apache HTTP Server 2.4.59 no solucion\u00f3 el problema. Se recomienda a los usuarios actualizar a la versi\u00f3n 2.4.64, que corrige este problema."
}
],
"id": "CVE-2024-42516",
"lastModified": "2025-11-04T22:16:02.943",
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FKIE_CVE-2024-43204
Vulnerability from fkie_nvd - Published: 2025-07-10 17:15 - Updated: 2025-11-04 22:16
Severity ?
Summary
SSRF in Apache HTTP Server with mod_proxy loaded allows an attacker to send outbound proxy requests to a URL controlled by the attacker. Requires an unlikely configuration where mod_headers is configured to modify the Content-Type request or response header with a value provided in the HTTP request.
Users are recommended to upgrade to version 2.4.64 which fixes this issue.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| apache | http_server | * |
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CVE-2025-58098 (GCVE-0-2025-58098)
Vulnerability from cvelistv5 – Published: 2025-12-05 13:40 – Updated: 2025-12-05 16:06
VLAI?
Title
Apache HTTP Server: Server Side Includes adds query string to #exec cmd=...
Summary
Apache HTTP Server 2.4.65 and earlier with Server Side Includes (SSI) enabled and mod_cgid (but not mod_cgi) passes the shell-escaped query string to #exec cmd="..." directives.
This issue affects Apache HTTP Server before 2.4.66.
Users are recommended to upgrade to version 2.4.66, which fixes the issue.
Severity ?
No CVSS data available.
CWE
- CWE-201 - Insertion of Sensitive Information Into Sent Data
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
0 , < 2.4.66
(semver)
|
Credits
Anthony Parfenov (United Rentals, Inc.)
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CVE-2025-66200 (GCVE-0-2025-66200)
Vulnerability from cvelistv5 – Published: 2025-12-05 11:02 – Updated: 2025-12-05 17:38
VLAI?
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 ?
No CVSS data available.
CWE
- mod_userdir+suexec bypass via AllowOverride FileInfo
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.7 , ≤ 2.4.65
(semver)
|
Credits
Mattias Åsander (Umeå University)
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CVE-2025-65082 (GCVE-0-2025-65082)
Vulnerability from cvelistv5 – Published: 2025-12-05 10:46 – Updated: 2025-12-05 19:30
VLAI?
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 ?
No CVSS data available.
CWE
- CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.0 , ≤ 2.4.65
(semver)
|
Credits
Mattias Åsander (Umeå University)
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CVE-2025-59775 (GCVE-0-2025-59775)
Vulnerability from cvelistv5 – Published: 2025-12-05 10:17 – Updated: 2025-12-05 19:28
VLAI?
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 ?
No CVSS data available.
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.0 , ≤ 2.4.65
(semver)
|
Credits
Orange Tsai (@orange_8361) from DEVCORE
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CVE-2025-55753 (GCVE-0-2025-55753)
Vulnerability from cvelistv5 – Published: 2025-12-05 10:12 – Updated: 2025-12-05 19:27
VLAI?
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 ?
No CVSS data available.
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.30 , < 2.4.66
(semver)
|
Credits
Aisle Research
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CVE-2025-54090 (GCVE-0-2025-54090)
Vulnerability from cvelistv5 – Published: 2025-07-23 13:19 – Updated: 2025-11-04 21:12
VLAI?
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 ?
No CVSS data available.
CWE
- CWE-253 - Incorrect Check of Function Return Value
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.64
(semver)
|
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CVE-2025-53020 (GCVE-0-2025-53020)
Vulnerability from cvelistv5 – Published: 2025-07-10 16:59 – Updated: 2025-11-04 21:11
VLAI?
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 ?
No CVSS data available.
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.17 , ≤ 2.4.63
(semver)
|
Credits
Gal Bar Nahum
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CVE-2025-49812 (GCVE-0-2025-49812)
Vulnerability from cvelistv5 – Published: 2025-07-10 16:58 – Updated: 2025-11-04 21:11
VLAI?
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 ?
No CVSS data available.
CWE
- CWE-287 - Improper Authentication
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
0 , ≤ 2.4.63
(semver)
|
Credits
Robert Merget (Technology Innovation Institute)
Nurullah Erinola (Ruhr University Bochum)
Marcel Maehren (Ruhr University Bochum)
Lukas Knittel (Ruhr University Bochum)
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CVE-2025-58098 (GCVE-0-2025-58098)
Vulnerability from nvd – Published: 2025-12-05 13:40 – Updated: 2025-12-05 16:06
VLAI?
Title
Apache HTTP Server: Server Side Includes adds query string to #exec cmd=...
Summary
Apache HTTP Server 2.4.65 and earlier with Server Side Includes (SSI) enabled and mod_cgid (but not mod_cgi) passes the shell-escaped query string to #exec cmd="..." directives.
This issue affects Apache HTTP Server before 2.4.66.
Users are recommended to upgrade to version 2.4.66, which fixes the issue.
Severity ?
No CVSS data available.
CWE
- CWE-201 - Insertion of Sensitive Information Into Sent Data
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
0 , < 2.4.66
(semver)
|
Credits
Anthony Parfenov (United Rentals, Inc.)
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CVE-2025-65082 (GCVE-0-2025-65082)
Vulnerability from nvd – Published: 2025-12-05 10:46 – Updated: 2025-12-05 19:30
VLAI?
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 ?
No CVSS data available.
CWE
- CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.0 , ≤ 2.4.65
(semver)
|
Credits
Mattias Åsander (Umeå University)
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CVE-2025-66200 (GCVE-0-2025-66200)
Vulnerability from nvd – Published: 2025-12-05 11:02 – Updated: 2025-12-05 17:38
VLAI?
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 ?
No CVSS data available.
CWE
- mod_userdir+suexec bypass via AllowOverride FileInfo
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.7 , ≤ 2.4.65
(semver)
|
Credits
Mattias Åsander (Umeå University)
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CVE-2025-59775 (GCVE-0-2025-59775)
Vulnerability from nvd – Published: 2025-12-05 10:17 – Updated: 2025-12-05 19:28
VLAI?
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 ?
No CVSS data available.
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.0 , ≤ 2.4.65
(semver)
|
Credits
Orange Tsai (@orange_8361) from DEVCORE
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CVE-2025-55753 (GCVE-0-2025-55753)
Vulnerability from nvd – Published: 2025-12-05 10:12 – Updated: 2025-12-05 19:27
VLAI?
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.
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Severity ?
No CVSS data available.
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.30 , < 2.4.66
(semver)
|
Credits
Aisle Research
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CVE-2025-54090 (GCVE-0-2025-54090)
Vulnerability from nvd – Published: 2025-07-23 13:19 – Updated: 2025-11-04 21:12
VLAI?
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 ?
No CVSS data available.
CWE
- CWE-253 - Incorrect Check of Function Return Value
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.64
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|
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CVE-2025-53020 (GCVE-0-2025-53020)
Vulnerability from nvd – Published: 2025-07-10 16:59 – Updated: 2025-11-04 21:11
VLAI?
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 ?
No CVSS data available.
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.17 , ≤ 2.4.63
(semver)
|
Credits
Gal Bar Nahum
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CVE-2025-49812 (GCVE-0-2025-49812)
Vulnerability from nvd – Published: 2025-07-10 16:58 – Updated: 2025-11-04 21:11
VLAI?
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 ?
No CVSS data available.
CWE
- CWE-287 - Improper Authentication
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
0 , ≤ 2.4.63
(semver)
|
Credits
Robert Merget (Technology Innovation Institute)
Nurullah Erinola (Ruhr University Bochum)
Marcel Maehren (Ruhr University Bochum)
Lukas Knittel (Ruhr University Bochum)
Sven Hebrok (Paderborn University)
Marcus Brinkmann (Ruhr University Bochum)
Juraj Somorovsky (Paderborn University)
Jörg Schwenk (Ruhr University Bochum)
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