{"schemaVersion":3,"id":"CVE-2023-29530","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Laminas Diactoros provides PSR HTTP Message implementations. In versions 2.18.0 and prior, 2.19.0, 2.20.0, 2.21.0, 2.22.0, 2.23.0, 2.24.0, and 2.25.0, users who create HTTP requests or responses using laminas/laminas-diactoros, when providing a newline at the start or end of a header key or value, can cause an invalid message. This can lead to denial of service vectors or application errors. The problem has been patched in following versions 2.18.1, 2.19.1, 2.20.1, 2.21.1, 2.22.1, 2.23.1, 2.24.1, and 2.25.1. As a workaround, validate HTTP header keys and/or values, and if using user-supplied values, filter them to strip off leading or trailing newline characters before calling `withHeader()`.","dates":{"published":"2023-04-24T19:34:40.294Z","modified":"2025-02-13T16:49:22.272Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00965,"percentile":0.61289,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00965},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00965,"percentile":0.61289}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00965,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00965,"percentile":0.61289}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-20","name":"Improper Input Validation","description":"The product receives input or data, but it does\n        not validate or incorrectly validates that the input has the\n        properties that are required to process the data safely and\n        correctly.","type":"weakness","status":"Stable","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/20.html"}],"affected":[{"vendor":"fedoraproject","product":"fedora","name":"fedora","label":"fedora","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"38","noFixRecorded":false,"fixedIn":null}],"versionsText":"38","eol":{"isEol":true,"eolDate":"2024-05-21T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"38","label":"38","eolFrom":"2024-05-21T00:00:00.000Z","isLts":false,"isMaintained":false,"latestVersion":null},"product":{"name":"fedora","label":"Fedora Linux","category":"os"}},"hubHref":"/vendor/fedoraproject/fedora"},{"vendor":"getlaminas","product":"laminas-diactoros","name":"laminas-diactoros","label":"laminas-diactoros","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 2.18.1","noFixRecorded":false,"fixedIn":null},{"text":"2.19.0","noFixRecorded":false,"fixedIn":null},{"text":"2.20.0","noFixRecorded":false,"fixedIn":null},{"text":"2.21.0","noFixRecorded":false,"fixedIn":null},{"text":"2.22.0","noFixRecorded":false,"fixedIn":null},{"text":"2.23.0","noFixRecorded":false,"fixedIn":null},{"text":"2.24.0","noFixRecorded":false,"fixedIn":null},{"text":"2.25.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.18.1 | 2.19.0 | 2.20.0 | 2.21.0 | 2.22.0 | 2.23.0 | 2.24.0 | 2.25.0","eol":null,"hubHref":"/vendor/getlaminas/laminas-diactoros"},{"vendor":"guzzlephp","product":"psr-7","name":"psr-7","label":"psr-7","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 1.9.1","noFixRecorded":false,"fixedIn":null},{"text":"≥ 2.0.0, < 2.4.5","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.9.1 | ≥ 2.0.0, < 2.4.5","eol":null,"hubHref":"/vendor/guzzlephp/psr-7"},{"vendor":"laminas","product":"laminas-diactoros","name":"laminas-diactoros","label":"laminas-diactoros","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 2.18.1","noFixRecorded":false,"fixedIn":null},{"text":"= 2.19.0","noFixRecorded":false,"fixedIn":null},{"text":"= 2.20.0","noFixRecorded":false,"fixedIn":null},{"text":"= 2.21.0","noFixRecorded":false,"fixedIn":null},{"text":"= 2.22.0","noFixRecorded":false,"fixedIn":null},{"text":"= 2.23.0","noFixRecorded":false,"fixedIn":null},{"text":"= 2.24.0","noFixRecorded":false,"fixedIn":null},{"text":"= 2.25.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.18.1 | = 2.19.0 | = 2.20.0 | = 2.21.0 | = 2.22.0 | = 2.23.0 | = 2.24.0 | = 2.25.0","eol":null,"hubHref":"/vendor/laminas/laminas-diactoros"}],"affectedCount":4,"eol":{"hasEol":true,"count":1},"references":[{"url":"https://github.com/laminas/laminas-diactoros/security/advisories/GHSA-xv3h-4844-9h36","label":"github.com/laminas/laminas-diactoros/security/advisories/GHSA-xv3h-4844-9h36","hostname":"github.com","tags":["X Refsource CONFIRM","Vendor Advisory"]},{"url":"https://github.com/advisories/GHSA-wxmh-65f7-jcvw","label":"github.com/advisories/GHSA-wxmh-65f7-jcvw","hostname":"github.com","tags":["X Refsource MISC","Not Applicable"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BPW54QK7ISDALPLP2CKODU4ZIVRYS336/","label":"lists.fedoraproject.org/archives/…","hostname":"lists.fedoraproject.org","tags":["Mailing List","Third Party Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2023-04-24T19:34:40.294Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-02-13T16:49:22.272Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T19:50:48.915Z","stale":false,"partial":false}}