SB2026100510 - Fedora 45 update for httpd
Published: October 5, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 7 vulnerabilities.
1) Use-after-free (CVE-ID: CVE-2026-29167)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to use-after-free in mod_ldap per-directory configuration when processing per-directory configuration. A local user can trigger processing of affected per-directory configuration to cause a denial of service.
2) Use-after-free (CVE-ID: CVE-2026-48913)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to use-after-free in mod_http2 when file handles are already exhausted. A remote attacker can trigger request processing under file descriptor exhaustion conditions to execute arbitrary code.
Exploitation requires the server to have exhausted file handles.
3) Infinite loop (CVE-ID: CVE-2026-44186)
CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to an infinite loop in proxy_ftp_handler in mod_proxy_ftp when interacting with an attacker-controlled backend FTP server. A remote attacker can operate a malicious backend FTP server to cause a denial of service.
4) Interpretation Conflict (CVE-ID: CVE-2026-42356)
CWE-ID: CWE-436 - Interpretation Conflict
CVSSv4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to incorrect handler deployment in Apache HTTP Server when processing internal redirects from CGI programs to non-CGI files in CGI-enabled directories. A remote attacker can trigger an internal redirect from a CGI program to execute arbitrary code.
The target file must not have an extension understood by mod_mime.
5) Incorrect calculation (CVE-ID: CVE-2026-42528)
CWE-ID: CWE-682 - Incorrect Calculation
CVSSv4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to an incorrect memory calculation in mod_dav when creating WebDAV locks. A remote user can create WebDAV locks to cause a denial of service.
6) Information disclosure (CVE-ID: CVE-2026-47360)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to improper session cookie removal in the mod_session_cookie module when SessionCookieRemove changes across internal redirects. A remote attacker can send a request that triggers an internal redirect to disclose sensitive information.
The session cookie may still be passed to a backend server.
7) Missing Authentication for Critical Function (CVE-ID: CVE-2026-48005)
CWE-ID: CWE-306 - Missing Authentication for Critical Function
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service through forced re-authentication.
The vulnerability exists due to missing authentication checks in mod_auth_digest when processing forged Authorization headers. A remote attacker can send forged Authorization headers to cause a denial of service through forced re-authentication.
Digest authentication must be enabled with AuthDigestNcCheck.
Remediation
Install update from vendor's website.