CVE-2026-79768

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Apache HTTP Server", "vendor": "Apache Software Foundation", "versions": [{"lessThanOrEqual": "2.4.68", "status": "affected", "version": "2.4.0", "versionType": "semver"}]}], "source": "security@apache.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "2571DF83-8980-4BEF-9EBE-AB2D9E6C03C7", "versionEndExcluding": "2.4.69", "versionStartIncluding": "2.4.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Path equivalence: '/./' (single dot directory) vulnerability in Apache HTTP Server's mod_userdir module when configured with\u00a0absolute non-wildcard UserDir directive (the 2nd form in\u00a0https://httpd.apache.org/docs/2.4/mod/mod_userdir.html#userdir)\n\n\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.68."}], "id": "CVE-2026-79768", "lastModified": "2026-10-05T17:35:50.293", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-79768", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-01T19:41:17.533835Z", "version": "2.0.3"}}]}, "published": "2026-10-01T17:17:31.910", "references": [{"source": "security@apache.org", "tags": ["Vendor Advisory"], "url": "https://httpd.apache.org/security/vulnerabilities_24.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2026/10/01/29"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-55"}], "source": "security@apache.org", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2026:74858", "cpe": "cpe:/a:redhat:hummingbird:1", "package": "httpd-main-2.4.69-1.hum1", "product_name": "Red Hat Hardened Images", "release_date": "2026-10-02T00:00:00Z"}], "bugzilla": {"description": "httpd: httpd: Information disclosure in mod_userdir via single-dot path equivalence", "id": "2544783", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2544783"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "status": "verified"}, "cwe": "CWE-41", "details": ["A flaw was found in Apache HTTP Server's mod_userdir module. When configured with an absolute path without wildcards for the UserDir directive, the server fails to properly resolve single-dot directory ('/./') path equivalence. A remote attacker can exploit this issue by submitting a crafted HTTP request, potentially bypassing path restrictions to access unauthorized files, leading to information disclosure."], "mitigation": {"lang": "en:us", "value": "Disable user directories or avoid configuring absolute directory paths without wildcards in the `UserDir` directive.\n1. If per-user web directories are not required, ensure `UserDir disabled` is configured in `/etc/httpd/conf.d/userdir.conf`, or comment out the module loading directive:\n```\n# LoadModule userdir_module modules/mod_userdir.so\n```\n2. If user directories are necessary, configure `UserDir` using a relative path (for example, `UserDir public_html`) rather than an absolute path.\n3. Reload the Apache HTTP Server configuration to apply changes:\n```\nsystemctl reload httpd\n```\nCaveats: Disabling mod_userdir prevents users from publishing content via `~username` URLs. Reloading the httpd service may briefly affect active HTTP connections."}, "name": "CVE-2026-79768", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "httpd", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "httpd", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "httpd", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "httpd:2.4/httpd", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "httpd", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-10-01T16:18:57Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-79768\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-79768\nhttp://www.openwall.com/lists/oss-security/2026/10/01/29\nhttps://httpd.apache.org/security/vulnerabilities_24.html"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.4.0,2.4.68]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Apache HTTP Server", "source": "cna", "vendor": "Apache Software Foundation"}, "product": "http_server", "vendor": "apache"}], "created": "2026-10-01T18:30:11.377258+00:00", "updated": "2026-10-02T14:30:24.039604+00:00", "vendors": ["apache", "apache$PRODUCT$http_server"]}