{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2025-47905", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2025-05-29T09:03:18.582Z", "dateReserved": "2025-05-13T00:00:00.000Z", "datePublished": "2025-05-13T00:00:00.000Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Varnish Cache", "vendor": "varnish-software", "versions": [{"lessThan": "6.0.14 LTS", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "7.6.3", "status": "affected", "version": "7.0.0", "versionType": "custom"}, {"lessThan": "7.7.1", "status": "affected", "version": "7.7.0", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Varnish Cache before 7.6.3 and 7.7 before 7.7.1, and Varnish Enterprise before 6.0.13r14, allow client-side desync via HTTP/1 requests, because the product incorrectly permits CRLF to be skipped to delimit chunk boundaries."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-444", "description": "CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2025-05-13T22:02:08.051Z"}, "references": [{"url": "https://varnish-cache.org/security/VSV00016.html"}], "x_generator": {"engine": "enrichogram 0.0.1"}, "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 5.4, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N"}}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:varnish-software:varnish_cache:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.0.14 LTS"}, {"vulnerable": true, "criteria": "cpe:2.3:a:varnish-software:varnish_cache:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.0.0", "versionEndExcluding": "7.6.3"}, {"vulnerable": true, "criteria": "cpe:2.3:a:varnish-software:varnish_cache:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.7.0", "versionEndExcluding": "7.7.1"}]}]}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-05-14T14:15:16.258197Z", "id": "CVE-2025-47905", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-14T14:15:21.703Z"}}, {"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2025/05/15/2"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00040.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-05-29T09:03:18.582Z"}}]}, "dataVersion": "5.1"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2025/05/15/2"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00040.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-05-29T09:03:18.582Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-47905", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-05-14T14:15:16.258197Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-14T14:15:18.689Z"}}], "cna": {"metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 5.4, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N"}}], "affected": [{"vendor": "varnish-software", "product": "Varnish Cache", "versions": [{"status": "affected", "version": "0", "lessThan": "6.0.14 LTS", "versionType": "custom"}, {"status": "affected", "version": "7.0.0", "lessThan": "7.6.3", "versionType": "custom"}, {"status": "affected", "version": "7.7.0", "lessThan": "7.7.1", "versionType": "custom"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://varnish-cache.org/security/VSV00016.html"}], "x_generator": {"engine": "enrichogram 0.0.1"}, "descriptions": [{"lang": "en", "value": "Varnish Cache before 7.6.3 and 7.7 before 7.7.1, and Varnish Enterprise before 6.0.13r14, allow client-side desync via HTTP/1 requests, because the product incorrectly permits CRLF to be skipped to delimit chunk boundaries."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-444", "description": "CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:varnish-software:varnish_cache:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.0.14 LTS"}, {"criteria": "cpe:2.3:a:varnish-software:varnish_cache:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.6.3", "versionStartIncluding": "7.0.0"}, {"criteria": "cpe:2.3:a:varnish-software:varnish_cache:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.7.1", "versionStartIncluding": "7.7.0"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2025-05-13T22:02:08.051Z"}}}, "cveMetadata": {"cveId": "CVE-2025-47905", "state": "PUBLISHED", "dateUpdated": "2025-05-29T09:03:18.582Z", "dateReserved": "2025-05-13T00:00:00.000Z", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "datePublished": "2025-05-13T00:00:00.000Z", "assignerShortName": "mitre"}, "dataVersion": "5.1"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Varnish Cache before 7.6.3 and 7.7 before 7.7.1, and Varnish Enterprise before 6.0.13r14, allow client-side desync via HTTP/1 requests, because the product incorrectly permits CRLF to be skipped to delimit chunk boundaries."}, {"lang": "es", "value": "Varnish Cache anterior a 7.6.3 y 7.7 anterior a 7.7.1, y Varnish Enterprise anterior a 6.0.13r14, permiten la desincronizaci\u00f3n del lado del cliente a trav\u00e9s de solicitudes HTTP/1, porque el producto permite incorrectamente que se omita CRLF para delimitar los l\u00edmites de los fragmentos."}], "id": "CVE-2025-47905", "lastModified": "2025-05-29T09:15:26.587", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 2.7, "source": "cve@mitre.org", "type": "Secondary"}]}, "published": "2025-05-13T22:15:24.990", "references": [{"source": "cve@mitre.org", "url": "https://varnish-cache.org/security/VSV00016.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2025/05/15/2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00040.html"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-444"}], "source": "cve@mitre.org", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2025:8550", "cpe": "cpe:/o:redhat:enterprise_linux:10.0", "package": "varnish-0:7.6.1-2.el10_0.1", "product_name": "Red Hat Enterprise Linux 10", "release_date": "2025-06-04T00:00:00Z"}, {"advisory": "RHSA-2025:8336", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "varnish:6-8100020250521162715.489197e6", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2025-06-02T00:00:00Z"}, {"advisory": "RHSA-2025:8339", "cpe": "cpe:/a:redhat:rhel_aus:8.2", "package": "varnish:6-8020020250522134231.4cda2c84", "product_name": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "release_date": "2025-06-02T00:00:00Z"}, {"advisory": "RHSA-2025:8340", "cpe": "cpe:/a:redhat:rhel_aus:8.4", "package": "varnish:6-8040020250522134003.522a0ee4", "product_name": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "release_date": "2025-06-02T00:00:00Z"}, {"advisory": "RHSA-2025:8340", "cpe": "cpe:/a:redhat:rhel_tus:8.4", "package": "varnish:6-8040020250522134003.522a0ee4", "product_name": "Red Hat Enterprise Linux 8.4 Telecommunications Update Service", "release_date": "2025-06-02T00:00:00Z"}, {"advisory": "RHSA-2025:8340", "cpe": "cpe:/a:redhat:rhel_e4s:8.4", "package": "varnish:6-8040020250522134003.522a0ee4", "product_name": "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions", "release_date": "2025-06-02T00:00:00Z"}, {"advisory": "RHSA-2025:8310", "cpe": "cpe:/a:redhat:rhel_aus:8.6", "package": "varnish:6-8060020250522133304.ad008a3a", "product_name": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "release_date": "2025-05-29T00:00:00Z"}, {"advisory": "RHSA-2025:8310", "cpe": "cpe:/a:redhat:rhel_tus:8.6", "package": "varnish:6-8060020250522133304.ad008a3a", "product_name": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "release_date": "2025-05-29T00:00:00Z"}, {"advisory": "RHSA-2025:8310", "cpe": "cpe:/a:redhat:rhel_e4s:8.6", "package": "varnish:6-8060020250522133304.ad008a3a", "product_name": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "release_date": "2025-05-29T00:00:00Z"}, {"advisory": "RHSA-2025:8294", "cpe": "cpe:/a:redhat:rhel_eus:8.8", "package": "varnish:6-8080020250522125234.63b34585", "product_name": "Red Hat Enterprise Linux 8.8 Extended Update Support", "release_date": "2025-05-29T00:00:00Z"}, {"advisory": "RHSA-2025:8337", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "varnish-0:6.6.2-6.el9_6.1", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-06-02T00:00:00Z"}, {"advisory": "RHSA-2025:8350", "cpe": "cpe:/a:redhat:rhel_e4s:9.0", "package": "varnish-0:6.6.2-2.el9_0.4", "product_name": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "release_date": "2025-06-02T00:00:00Z"}, {"advisory": "RHSA-2025:8351", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "varnish-0:6.6.2-3.el9_2.3", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2025-06-02T00:00:00Z"}, {"advisory": "RHSA-2025:8349", "cpe": "cpe:/a:redhat:rhel_eus:9.4", "package": "varnish-0:6.6.2-5.el9_4.1", "product_name": "Red Hat Enterprise Linux 9.4 Extended Update Support", "release_date": "2025-06-02T00:00:00Z"}], "bugzilla": {"description": "varnish: request smuggling attacks", "id": "2364235", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2364235"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N", "status": "verified"}, "cwe": "CWE-444", "details": ["Varnish Cache before 7.6.3 and 7.7 before 7.7.1, and Varnish Enterprise before 6.0.13r14, allow client-side desync via HTTP/1 requests, because the product incorrectly permits CRLF to be skipped to delimit chunk boundaries.", "A vulnerability was found in Varnish Cache. This vulnerability may allow request smuggling attacks, where a malicious actor can craft seemingly legitimate HTTP requests. This issue could result in an unspecified system caching incorrect content that can expose confidential information."], "mitigation": {"lang": "en:us", "value": "Currently, no mitigation is available for this vulnerability."}, "name": "CVE-2025-47905", "public_date": "2025-05-13T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-47905\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-47905"], "statement": "This vulnerability is rated as an IMPORTANT severity because this is a client-side desync vulnerability in Varnish handling a chunked transfer encoding, where it mishandles CRLF delimiters, allows attackers to smuggle additional HTTP/1 requests, this flaw allows attacker to unauthorized access of sensitive information and data alteration.", "threat_severity": "Important"}

{}