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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:varnish-software:varnich_cache:*:*:*:*:-:*:*:*", "matchCriteriaId": "46189326-29F3-4641-ADB0-5355B69776D1", "versionEndExcluding": "6.6.2", "versionStartIncluding": "1.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:varnish-software:varnich_cache:*:*:*:*:plus:*:*:*", "matchCriteriaId": "409748DC-967D-4843-8FE4-E06F75A4B459", "versionEndExcluding": "4.1.11r6", "versionStartIncluding": "4.1.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:varnish-software:varnich_cache:4.1:*:*:*:lts:*:*:*", "matchCriteriaId": "9EE19451-5DA3-4F4B-B972-13ED93EE4446", "vulnerable": true}, {"criteria": "cpe:2.3:a:varnish-software:varnish_cache:*:*:*:*:lts:*:*:*", "matchCriteriaId": "5C4F2BA4-3275-4365-9F41-0D04320C383A", "versionEndExcluding": "6.0.10", "versionStartIncluding": "6.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:varnish-software:varnish_cache_plus:*:*:*:*:*:*:*:*", "matchCriteriaId": "16AE4401-F65C-4246-98AA-AAAAEFA97D73", "versionEndExcluding": "6.0.9r4", "versionStartIncluding": "6.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:varnish_cache_project:varnish_cache:*:*:*:*:*:*:*:*", "matchCriteriaId": "1E0E1405-62BB-446D-A04B-0A312FB81E3E", "versionEndExcluding": "7.0.2", "versionStartIncluding": "7.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*", "matchCriteriaId": "80E516C0-98A4-4ADE-B69F-66A772E2BAAA", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Varnish Cache before 6.6.2 and 7.x before 7.0.2, Varnish Cache 6.0 LTS before 6.0.10, and and Varnish Enterprise (Cache Plus) 4.1.x before 4.1.11r6 and 6.0.x before 6.0.9r4, request smuggling can occur for HTTP/1 connections."}, {"lang": "es", "value": "En Varnish Cache versiones anteriores a 6.6.2 y 7.x versiones anteriores a 7.0.2, Varnish Cache 6.0 LTS versiones anteriores a 6.0.10, y Varnish Enterprise (Cache Plus) 4.1.x versiones anteriores a 4.1.11r6 y 6.0.x versiones anteriores a 6.0.9r4, puede producirse contrabando de peticiones para conexiones HTTP/1"}], "id": "CVE-2022-23959", "lastModified": "2026-06-17T04:31:03.640", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 6.4, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-01-26T01:15:07.900", "references": [{"source": "cve@mitre.org", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://docs.varnish-software.com/security/VSV00008/"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/02/msg00014.html"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UMMDMQWNAE3BTSZUHXQHVAMZC5TLHLYT/"}, {"source": "cve@mitre.org", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://varnish-cache.org/security/VSV00008.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2022/dsa-5088"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://docs.varnish-software.com/security/VSV00008/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/02/msg00014.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UMMDMQWNAE3BTSZUHXQHVAMZC5TLHLYT/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://varnish-cache.org/security/VSV00008.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2022/dsa-5088"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-444"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2022:0418", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "varnish:6-8050020220201171716.c5368500", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2022-02-03T00:00:00Z"}, {"advisory": "RHSA-2022:0420", "cpe": "cpe:/a:redhat:rhel_e4s:8.1", "package": "varnish:6-8010020220201182846.c27ad7f8", "product_name": "Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions", "release_date": "2022-02-03T00:00:00Z"}, {"advisory": "RHSA-2022:0421", "cpe": "cpe:/a:redhat:rhel_eus:8.2", "package": "varnish:6-8020020220201181211.4cda2c84", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2022-02-03T00:00:00Z"}, {"advisory": "RHSA-2022:0422", "cpe": "cpe:/a:redhat:rhel_eus:8.4", "package": "varnish:6-8040020220201180030.522a0ee4", "product_name": "Red Hat Enterprise Linux 8.4 Extended Update Support", "release_date": "2022-02-03T00:00:00Z"}, {"advisory": "RHSA-2022:4745", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-varnish6-varnish-0:6.0.8-2.el7.1", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7", "release_date": "2022-05-25T00:00:00Z"}], "bugzilla": {"description": "varnish: HTTP/1 request smuggling vulnerability", "id": "2045031", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2045031"}, "csaw": false, "cvss3": {"cvss3_base_score": "9.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "status": "verified"}, "cwe": "CWE-444", "details": ["In Varnish Cache before 6.6.2 and 7.x before 7.0.2, Varnish Cache 6.0 LTS before 6.0.10, and and Varnish Enterprise (Cache Plus) 4.1.x before 4.1.11r6 and 6.0.x before 6.0.9r4, request smuggling can occur for HTTP/1 connections.", "A flaw was found in Varnish. This flaw allows an attacker to carry out a request smuggling attack on HTTP/1 connections on Varnish cache servers. This smuggled request goes through the usual Varnish Configuration Language (VCL) processing since the Varnish server treats it as an additional request."], "mitigation": {"lang": "en:us", "value": "This issue can be mitigated by ensuring that the Varnish server does not allow connection reuse on HTTP/1 client connections once a request body has been seen on the connection. This requires changes in the VCL configuration."}, "name": "CVE-2022-23959", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "varnish", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2022-01-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-23959\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-23959\nhttps://varnish-cache.org/security/VSV00008.html#vsv00008"], "threat_severity": "Important"}

{}