CVE Feed

    Dashboard / CVE / CVE-2026-73637

    CVE-2026-73637

    Use after free in mod_auth_digest in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an unauthenticated remote client to cause authentication state corruption via concurrent Digest authentication requests when AuthDigestNcCheck is enabled or AuthDigestNonceLifetime is set to 0. Users are recommended to upgrade to version 2.4.69, which fixes this issue.

    Published:Oct 1, 2026
    Last Modified:Oct 5, 2026
    EPS:Oct 1, 2026
    EPSS Score:0.00264
    CVSS Score:7.3

    Affected Products

    Vendor
    Apache
    Product
    Apache Http Server
    Vendor
    Apache
    Product
    Http Server
    Vendor
    Redhat
    Product
    Hummingbird

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-63686 (CVSS 7.5) — A NULL pointer dereference in mod_xml2enc in Apache Software Foundation Apache HTTP Server before 2.4.69 on al…
    CVE-2026-93546 (CVSS 8.8) — Integer overflow in mod_dav_fs in Apache HTTP Server through 2.4.68 allows an authenticated WebDAV client with…
    CVE-2026-73636 (CVSS 8.1) — Authentication bypass by capture-replay in mod_auth_digest in Apache Software Foundation Apache HTTP Server 2.…
    CVE-2026-63045 (CVSS 7.5) — Improper validation of FTP PASV reply address in mod_proxy_ftp in Apache Software Foundation Apache HTTP Serve…
    CVE-2026-58415 (CVSS 5.3) — Internal state files accessible to external parties in mod_dav_fs in Apache Software Foundation Apache HTTP Se…
    CVE-2026-57941 (CVSS 9.8) — Use After Free vulnerability in Apache HTTP Server's mod_http2 via shared session->bbtmp re-entrancy This i…
    CVE-2026-48005 (CVSS 7.5) — Missing authentication checks in mod_auth_digest in Apache Software Foundation Apache HTTP Server before 2.4.6…
    CVE-2026-44631 (CVSS 9.8) — Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration. Th…
    CVE-2026-34356 (CVSS 7.5) — Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassRev…
    CVE-2026-44186 (CVSS 7.3) — Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in the mod_proxy_ftp module in Apache HTT…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High