Tag: httpd

mod_http2 v2.0.40 rpms released

mod_http2 v2.0.40 rpms released and added to all supported platforms.

Changes:

  • Fix error handling on upload requests when server runs out of file handles that left beam bucket callbacks in place, potentially using no longer valid references. Only applies on platforms with pipes and file descriptor limits not healthy for a network server.

Apache httpd 2.4.67 with Brotli support, TLS 1.3, OpenSSL 4.0.0 with http2 mod_http2 2.0.39 and ALPN for Red Hat Enterprise Linux, CentOS 7, Alma Linux, Rocky Linux 8/9/10

Apache httpd 2.4.67 RPMs released and added to all supported platforms.

Major changes:

  *) SECURITY: CVE-2026-34059: Apache HTTP Server: mod_proxy_ajp:
     Heap Over-Read and memory disclosure in  ajp_parse_data()
     (cve.mitre.org)
     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.
     Credits: Elhanan Haenel

  *) SECURITY: CVE-2026-34032: Apache HTTP Server: mod_proxy_ajp:
     Heap Buffer Over-Read Due to Missing Null-Termination Check
     (ajp_msg_get_string) (cve.mitre.org)
     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.
     Credits: Tianshuo Han (<[email protected]>)

  *) SECURITY: CVE-2026-33857: Apache HTTP Server: Off-by-one OOB
     reads in AJP getter functions (cve.mitre.org)
     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.
     Credits: Elhanan Haenel

  *) SECURITY: CVE-2026-33523: Apache HTTP Server: multiple modules:
     HTTP response splitting forwarding malicious status line
     (cve.mitre.org)
     HTTP response splitting vulnerability in multiple Apache HTTP
     Server modules with untrusted or compromised backend servers.
     This issue affects Apache HTTP Server: from through 2.4.66.
     Users are recommended to upgrade to version 2.4.67, which fixes
     the issue.
     Credits: Haruki Oyama (Waseda University)

  *) SECURITY: CVE-2026-33007: Apache HTTP Server: mod_authn_socache
     crash (cve.mitre.org)
     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.
     Credits: Pavel Kohout, Aisle Research, Aisle.com

  *) SECURITY: CVE-2026-33006: Apache HTTP Server: mod_auth_digest
     timing attack (cve.mitre.org)
     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.
     Credits: Nitescu Lucian

  *) SECURITY: CVE-2026-29169: Apache HTTP Server: mod_dav_lock
     indirect lock crash (cve.mitre.org)
     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.
     Credits: Pavel Kohout, Aisle Research, Aisle.com

  *) SECURITY: CVE-2026-29168: Apache HTTP Server: mod_md
     unrestricted OCSP response (cve.mitre.org)
     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.
     Credits: Pavel Kohout, Aisle Research, Aisle.com

  *) SECURITY: CVE-2026-28780: Apache HTTP Server: buffer overflow in
     mod_proxy_ajp via  ajp_msg_check_header() (cve.mitre.org)
     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.
     Credits: Andrew Lacambra

  *) SECURITY: CVE-2026-24072: Apache HTTP Server: mod_rewrite
     elevation of privileges via ap_expr (cve.mitre.org)
     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.
     Credits: y7syeu

  *) SECURITY: CVE-2026-23918: Apache HTTP Server: http2: double free
     and possible RCE on early reset (cve.mitre.org)
     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.
     Credits: Bartlomiej Dmitruk, striga.ai

  *) mod_md: update to version 2.6.10
     - Fix issue #420 <https://github.com/icing/mod_md/issues/420> by ignoring
       job.json files that claim to have completely finished a certificate
       renewal, but have not produced the necessary result files.

  *) mod_http2: update to version 2.0.39
     Remove streams own memory allocator after reports of memory problems
     with third party modules.
     [Stefan Eissing]

  *) mod_http2: update to version 2.0.38
     Source sync with mod_h2 github repository. No functional change.
     [Stefan Eissing]

  *) Updated conf/mime.types: added vnd.sqlite3, HEIC, HEIF
     [Alexandru Mărășteanu <hello alexei.ro>]

  *) mod_md: update to version 2.6.7
     - Fix a regression in `MDStapleOthers` which broke in v2.6.0 and no longer
       applied, no matter the configuration.

  *) mod_md: update to version 2.6.9
     - Pebble 2.9+ reports another error when terms of service agreement is
       not set. Treating all "userActionRequired" errors as permanent now.

  *) mod_md: update to version 2.6.8
     - Fix the ARI related `replaces` property in ACME order creation to only
       be used when the CA supports ARI and it is enabled in the menu config.
     - Fix compatibility with APR versions before 1.6.0 which do not have
       `apr_cstr_casecmp` and should use `apr_strnatcasecmp` instead.

  *) mod_http2: update to version 2.0.37
     Prevent double purge of a stream, resulting in a double free.
     Fixes PR 69899.
     [Stefan Eissing]

  *) mod_md: Use correct function name when compiling against APR < 1.6.0.
     PR 69954 [Tần Quảng <[email protected]>]

Encrypted Client Hello Comes to NGINX

We are rebuilding all the packages against openssl 4.0.0 that was released today.

Our nghttp2 (as builds test tool and httpd prerequisite) pull request was accepted some days ago, so it is no more a blocker.

Nginx 1.28.x was a blocker, but team finally released nginx 1.30 with ECH support and now all the stack builds with openssl 4.

Small exception is httpd that requires some patches to fix openssl 4 build (as api changed), it will be published as openssl4.patch in src.rpm separately.

Apache httpd 2.4.66 with brotli support, TLS 1.3, OpenSSL 3.5.4 with http2, mod_http2 2.0.35 and ALPN for Red Hat Enterprise Linux, CentOS 7, Alma Linux, Rocky Linux 8/9/10 fixing CVE-2025-66200, CVE-2025-65082, CVE-2025-59775, CVE-2025-58098, CVE-2025-55753

Apache httpd 2.4.66 added to the repository.

Changes: 

  *) SECURITY: CVE-2025-66200: Apache HTTP Server: mod_userdir+suexec
     bypass via AllowOverride FileInfo (cve.mitre.org)
     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.
     Credits: Mattias Г…sander (UmeГҐ University)

  *) SECURITY: CVE-2025-65082: Apache HTTP Server: CGI environment
     variable override (cve.mitre.org)
     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.
     Credits: Mattias Г…sander (UmeГҐ University)

  *) SECURITY: CVE-2025-59775: Apache HTTP Server: NTLM Leakage on
     Windows through UNC SSRF (cve.mitre.org)
     Server-Side Request Forgery (SSRF) vulnerability
     В in Apache HTTP Server on Windows
     with AllowEncodedSlashes OnВ and MergeSlashes OffВ  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.
     Credits: Orange Tsai (@orange_8361) from DEVCORE

  *) SECURITY: CVE-2025-58098: Apache HTTP Server: Server Side
     Includes adds query string to #exec cmd=... (cve.mitre.org)
     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.
     Credits: Anthony Parfenov (United Rentals, Inc.)

  *) SECURITY: CVE-2025-55753: Apache HTTP Server: mod_md (ACME),
     unintended retry intervals (cve.mitre.org)
     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.
     Credits: Aisle Research

  *) mod_http2: Fix handling of 304 responses from mod_cache. PR 69580.
     [Stefan Eissing]

  *) mod_http2/mod_proxy_http2: fix a bug in calculating the log2 value of
     integers, used in push diaries and proxy window size calculations.
     PR69741 [Benjamin P. Kallus]

  *) mod_md: update to version 2.6.5
     - New directive `MDInitialDelay`, controlling how longer to wait after
       a server restart before checking certificates for renewal.
       [Michael Kaufmann]
     - Hardening: when build with OpenSSL older than 1.0.2 or old libressl
       versions, the parsing of ASN.1 time strings did not do a length check.
     - Hardening: when reading back OCSP responses stored in the local JSON
       store, missing 'valid' key led to uninitialized values, resulting in
       wrong refresh behaviour.

  *) mod_md: update to version 2.6.6
     - Fix a small memory leak when using OpenSSL's BIGNUMs. [Theo Buehler]
     - Fix reuse of curl easy handles by resetting them. [Michael Kaufmann]

  *) mod_http2: update to version 2.0.35
     New directive `H2MaxStreamErrors` to control how much bad behaviour
     by clients is tolerated before the connection is closed.
     [Stefan Eissing]

  * mod_proxy_http2: add support for ProxyErrorOverride directive. PR69771

  *) mpm_common: Add new ListenTCPDeferAccept directive that allows to specify
     the value set for the TCP_DEFER_ACCEPT socket option on listen sockets.
     [Ruediger Pluem]

  *) mod_ssl: Add SSLVHostSNIPolicy directive to control the virtual
     host compatibility policy.  PR 69743.  [Joe Orton]

  *) mod_md: update to version 2.6.2
     - Fix error retry delay calculation to not already doubling the wait
       on the first error.

  *) mod_md: update to version 2.6.1
     - Increasing default `MDRetryDelay` to 30 seconds to generate less bursty
       traffic on errored renewals for the ACME CA. This leads to error retries
        of 30s, 1 minute, 2, 4, etc. up to daily attempts.
     - Checking that configuring `MDRetryDelay` will result in a positive
       duration. A delay of 0 is not accepted.
     - Fix a bug in checking Content-Type of responses from the ACME server.
     - Added ACME ARI support (rfc9773) to the module. Enabled by default. New
       directive "MDRenewViaARI on|off" for controlling this.
     - Removing tailscale support. It has not been working for a long time
       as the company decided to change their APIs. Away with the dead code,
       documentation and tests.
     - Fixed a compilation issue with pre-industrial versions of libcurl.