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

CVE-2026-28780 (GCVE-0-2026-28780)

Vulnerability from – 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 ?
No CVSS data available.
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache HTTP Server Affected: 0 , ≤ 2.4.66 (semver)
Create a notification for this product.
Credits
Andrew Lacambra Elhanan Haenel Tianshuo Han (<hantianshuo233@gmail.com>) Tristan Madani
Show details on NVD website

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CVE-2026-29169 (GCVE-0-2026-29169)

Vulnerability from – Published: 2026-05-04 14:48 – Updated: 2026-05-05 20:23
VLAI?
Title
Apache HTTP Server: mod_dav_lock indirect lock crash
Summary
A NULL pointer dereference in mod_dav_lock in Apache HTTP Server 2.4.66 and earlier may allow an attacker to crash the server with a malicious request.mod_dav_lock is not used internally by mod_dav or mod_dav_fs. The only known use-case for mod_dav_lock was mod_dav_svn from Apache Subversion earlier than version 1.2.0. Users are recommended to upgrade to version 2.4.66, which fixes this issue, or remove mod_dav_lock.
Severity ?
No CVSS data available.
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache HTTP Server Affected: 0 , ≤ 2.4.66 (semver)
Create a notification for this product.
Credits
Pavel Kohout, Aisle Research, Aisle.com
Show details on NVD website

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CVE-2026-29168 (GCVE-0-2026-29168)

Vulnerability from – 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 ?
No CVSS data available.
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache HTTP Server Affected: 2.4.30 , ≤ 2.4.66 (semver)
    cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Pavel Kohout, Aisle Research, Aisle.com
Show details on NVD website

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CVE-2026-33007 (GCVE-0-2026-33007)

Vulnerability from – Published: 2026-05-04 14:41 – Updated: 2026-05-05 15:07
VLAI?
Title
Apache HTTP Server: mod_authn_socache crash
Summary
A NULL pointer dereference in the mod_authn_socache in Apache HTTP Server 2.4.66 and earlier allows an unauthenticated remote user to crash a child process in a caching forward proxy configuration. Users are recommended to upgrade to version 2.4.67, which fixes this issue.
Severity ?
No CVSS data available.
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache HTTP Server Affected: 2.4.0 , ≤ 2.4.66 (semver)
Create a notification for this product.
Credits
Pavel Kohout, Aisle Research, Aisle.com Arkadi Vainbrand
Show details on NVD website

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CVE-2026-23918 (GCVE-0-2026-23918)

Vulnerability from – Published: 2026-05-04 14:44 – Updated: 2026-05-05 03:56
VLAI?
Title
Apache HTTP Server: http2: double free and possible RCE on early reset
Summary
Double Free and possible RCE vulnerability in Apache HTTP Server with the HTTP/2 protocol. This issue affects Apache HTTP Server: 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.
Severity ?
No CVSS data available.
CWE
Assigner
References
Impacted products
Credits
Bartlomiej Dmitruk, striga.ai Stanislaw Strzalkowski, isec.pl
Show details on NVD website

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CVE-2026-24072 (GCVE-0-2026-24072)

Vulnerability from – Published: 2026-05-04 12:37 – Updated: 2026-05-05 03:56
VLAI?
Title
Apache HTTP Server: mod_rewrite elevation of privileges via ap_expr
Summary
An escalation of privilege bug in various modules in Apache HTTP 2.4.66 and earlier allows local .htaccess authors to read files with the privileges of the httpd user. Users are recommended to upgrade to version 2.4.67, which fixes this issue.
Severity ?
No CVSS data available.
CWE
  • CWE-269 - Improper Privilege Management
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache HTTP Server Affected: 0 , ≤ 2.4.66 (semver)
Create a notification for this product.
Credits
y7syeu
Show details on NVD website

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CVE-2026-33006 (GCVE-0-2026-33006)

Vulnerability from – Published: 2026-05-04 14:42 – Updated: 2026-05-04 18:23
VLAI?
Title
Apache HTTP Server: mod_auth_digest timing attack
Summary
A timing attack against mod_auth_digest in Apache HTTP Server 2.4.66 allows a bypass of Digest authentication by a remote attacker. Users are recommended to upgrade to version 2.4.67, which fixes this issue.
Severity ?
No CVSS data available.
CWE
  • CWE-208 - Observable Timing Discrepancy
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache HTTP Server Affected: 0 , ≤ 2.4.66 (semver)
Create a notification for this product.
Credits
Nitescu Lucian
Show details on NVD website

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CVE-2026-34059 (GCVE-0-2026-34059)

Vulnerability from – Published: 2026-05-04 12:39 – Updated: 2026-05-04 17:32
VLAI?
Title
Apache HTTP Server: mod_proxy_ajp: Heap Over-Read and memory disclosure in ajp_parse_data()
Summary
Buffer Over-read vulnerability in Apache HTTP Server. 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 ?
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache HTTP Server Affected: 0 , ≤ 2.4.66 (semver)
Create a notification for this product.
Credits
Elhanan Haenel
Show details on NVD website

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CVE-2026-34032 (GCVE-0-2026-34032)

Vulnerability from – Published: 2026-05-04 12:54 – Updated: 2026-05-04 17:32
VLAI?
Title
Apache HTTP Server: mod_proxy_ajp: Heap Buffer Over-Read Due to Missing Null-Termination Check (ajp_msg_get_string)
Summary
Improper Null Termination, Out-of-bounds Read vulnerability in Apache HTTP Server. 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 ?
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache HTTP Server Affected: 0 , ≤ 2.4.66 (semver)
Create a notification for this product.
Credits
Tianshuo Han (<hantianshuo233@gmail.com>) Jérôme Djouder
Show details on NVD website

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CVE-2026-33857 (GCVE-0-2026-33857)

Vulnerability from – Published: 2026-05-04 13:07 – Updated: 2026-05-04 17:32
VLAI?
Title
Apache HTTP Server: Off-by-one OOB reads in AJP getter functions
Summary
Out-of-bounds Read vulnerability in mod_proxy_ajp of Apache HTTP Server. 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 ?
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache HTTP Server Affected: 0 , ≤ 2.4.66 (semver)
Create a notification for this product.
Credits
Elhanan Haenel
Show details on NVD website

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