CVE-2026-9658

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-9658", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-05-26T20:57:50.718Z", "datePublished": "2026-05-28T11:36:50.565Z", "dateUpdated": "2026-06-01T18:00:18.515Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "Plack-Middleware-Security-Simple", "product": "Plack::Middleware::Security::Common", "programFiles": ["lib/Plack/Middleware/Security/Common.pm"], "programRoutines": [{"name": "Plack::Middleware::Security::Common::header_injection"}], "repo": "https://github.com/robrwo/Plack-Middleware-Security-Simple", "vendor": "RRWO", "versions": [{"lessThan": "0.13.1", "status": "affected", "version": "0", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Plack::Middleware::Security::Common versions before 0.13.1 for Perl did not block header injections in request paths.\n\nThe header injection rule was ineffective at blocking header injections in the request paths unless they were double-encoded, for example,\n\n GET /path\\r\\nHTTP/1.1\\r\\nHost: secret.example.com\n\nNote that it is unclear whether request paths with CRLF followed by additional headers would be blocked by reverse proxies, or how they would be processed by Plack-based servers."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-790", "description": "CWE-790 Improper Filtering of Special Elements", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-113", "description": "CWE-113 Improper Neutralization of CRLF Sequences in HTTP Headers", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-05-28T11:36:50.565Z"}, "references": [{"tags": ["release-notes"], "url": "https://metacpan.org/release/RRWO/Plack-Middleware-Security-Simple-v0.13.1/changes"}], "solutions": [{"lang": "en", "value": "Upgrade to 0.13.1 or later."}], "source": {"discovery": "UNKNOWN"}, "title": "Plack::Middleware::Security::Common versions before 0.13.1 for Perl did not block header injections in request paths", "workarounds": [{"lang": "en", "value": "Use with the the the non_printable_chars rule to block header injections."}], "x_generator": {"engine": "cpansec-cna-tool 0.1"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/05/28/9"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-05-28T22:33:29.133Z"}}, {"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.3, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-06-01T18:00:08.268723Z", "id": "CVE-2026-9658", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"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": "2026-06-01T18:00:18.515Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/05/28/9"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-05-28T22:33:29.133Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.3, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-9658", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-01T18:00:08.268723Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-01T17:59:37.703Z"}}], "cna": {"title": "Plack::Middleware::Security::Common versions before 0.13.1 for Perl did not block header injections in request paths", "source": {"discovery": "UNKNOWN"}, "affected": [{"repo": "https://github.com/robrwo/Plack-Middleware-Security-Simple", "vendor": "RRWO", "product": "Plack::Middleware::Security::Common", "versions": [{"status": "affected", "version": "0", "lessThan": "0.13.1", "versionType": "custom"}], "packageName": "Plack-Middleware-Security-Simple", "programFiles": ["lib/Plack/Middleware/Security/Common.pm"], "collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "programRoutines": [{"name": "Plack::Middleware::Security::Common::header_injection"}]}], "solutions": [{"lang": "en", "value": "Upgrade to 0.13.1 or later."}], "references": [{"url": "https://metacpan.org/release/RRWO/Plack-Middleware-Security-Simple-v0.13.1/changes", "tags": ["release-notes"]}], "workarounds": [{"lang": "en", "value": "Use with the the the non_printable_chars rule to block header injections."}], "x_generator": {"engine": "cpansec-cna-tool 0.1"}, "descriptions": [{"lang": "en", "value": "Plack::Middleware::Security::Common versions before 0.13.1 for Perl did not block header injections in request paths.\n\nThe header injection rule was ineffective at blocking header injections in the request paths unless they were double-encoded, for example,\n\n GET /path\\r\\nHTTP/1.1\\r\\nHost: secret.example.com\n\nNote that it is unclear whether request paths with CRLF followed by additional headers would be blocked by reverse proxies, or how they would be processed by Plack-based servers."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-790", "description": "CWE-790 Improper Filtering of Special Elements"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-113", "description": "CWE-113 Improper Neutralization of CRLF Sequences in HTTP Headers"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-05-28T11:36:50.565Z"}}}, "cveMetadata": {"cveId": "CVE-2026-9658", "state": "PUBLISHED", "dateUpdated": "2026-06-01T18:00:18.515Z", "dateReserved": "2026-05-26T20:57:50.718Z", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "datePublished": "2026-05-28T11:36:50.565Z", "assignerShortName": "CPANSec"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "Plack-Middleware-Security-Simple", "product": "Plack::Middleware::Security::Common", "programFiles": ["lib/Plack/Middleware/Security/Common.pm"], "programRoutines": [{"name": "Plack::Middleware::Security::Common::header_injection"}], "repo": "https://github.com/robrwo/Plack-Middleware-Security-Simple", "vendor": "RRWO", "versions": [{"lessThan": "0.13.1", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Plack::Middleware::Security::Common versions before 0.13.1 for Perl did not block header injections in request paths.\n\nThe header injection rule was ineffective at blocking header injections in the request paths unless they were double-encoded, for example,\n\n GET /path\\r\\nHTTP/1.1\\r\\nHost: secret.example.com\n\nNote that it is unclear whether request paths with CRLF followed by additional headers would be blocked by reverse proxies, or how they would be processed by Plack-based servers."}, {"lang": "es", "value": "Las versiones de Plack::Middleware::Security::Common anteriores a la 0.13.1 para Perl no bloqueaban las inyecciones de encabezado en las rutas de solicitud.\n\nLa regla de inyecci\u00f3n de encabezado era ineficaz para bloquear las inyecciones de encabezado en las rutas de solicitud a menos que estuvieran doblemente codificadas, por ejemplo,\n\n GET /path\\r\\nHTTP/1.1\\r\\nHost: secret.example.com\n\nCabe se\u00f1alar que no est\u00e1 claro si las rutas de solicitud con CRLF seguidas de encabezados adicionales ser\u00edan bloqueadas por proxies inversos, o c\u00f3mo ser\u00edan procesadas por servidores basados en Plack."}], "id": "CVE-2026-9658", "lastModified": "2026-10-26T11:10:00.157", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-9658", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-01T18:00:08.268723Z", "version": "2.0.3"}}]}, "published": "2026-05-28T13:16:25.067", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/RRWO/Plack-Middleware-Security-Simple-v0.13.1/changes"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/05/28/9"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-113"}, {"lang": "en", "value": "CWE-790"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,0.13.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Plack::Middleware::Security::Common", "source": "cna", "vendor": "RRWO"}, "product": "plack::middleware::security::common", "vendor": "rrwo"}], "created": "2026-05-28T13:15:22.413648+00:00", "updated": "2026-06-01T20:45:25.625053+00:00", "vendors": ["rrwo", "rrwo$PRODUCT$plack::middleware::security::common"]}