{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-67354", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-07-29T13:36:36.278Z", "datePublished": "2026-08-01T12:22:18.324Z", "dateUpdated": "2026-10-08T15:24:16.125Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-08T15:24:16.125Z" }, "datePublic": "2026-07-18T00:00:00.000Z", "title": "guzzlehttp/guzzle before 7.15.1 URI Fragment Disclosure via Referer", "descriptions": [ { "lang": "en", "value": "guzzlehttp/guzzle versions before 7.15.1 contain an information disclosure vulnerability in RedirectMiddleware. When the optional allow_redirects.referer setting is enabled, the middleware copies the URI fragment (the portion after '#') from the referring request into the generated Referer header when following a same-scheme redirect (e.g., HTTPS to HTTPS). An attacker who controls the redirect destination can read this fragment from the incoming Referer header, potentially disclosing one-time login secrets, access tokens, state values, or other sensitive client data to a server never meant to receive it. The referer setting is disabled by default. Fixed in 7.15.1, which strips the fragment before generating the Referer value." } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Insertion of Sensitive Information Into Sent Data", "cweId": "CWE-201", "type": "CWE" } ] } ], "affected": [ { "vendor": "guzzle", "product": "guzzle", "defaultStatus": "unaffected", "versions": [ { "version": "0", "status": "affected", "versionType": "semver", "lessThan": "7.15.1" }, { "version": "7.15.1", "status": "unaffected", "versionType": "semver" } ], "packageURL": "pkg:composer/guzzlehttp/guzzle" } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:guzzlephp:guzzle:*:*:*:*:*:*:*:*", "versionEndExcluding": "7.15.1" } ] } ] } ], "metrics": [ { "format": "CVSS", "cvssV4_0": { "version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH" } }, { "format": "CVSS", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM" } } ], "references": [ { "url": "https://github.com/guzzle/guzzle/security/advisories/GHSA-h95v-h523-3mw8", "tags": [ "vendor-advisory" ], "name": "GitHub Security Advisory (GHSA-h95v-h523-3mw8)" }, { "name": "VulnCheck Advisory: guzzlehttp/guzzle before 7.15.1 URI Fragment Disclosure via Referer", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/guzzlehttp-guzzle-before-uri-fragment-disclosure-via-referer" } ], "credits": [ { "lang": "en", "value": "GrahamCampbell", "type": "reporter" } ], "x_generator": { "engine": "vulncheck-endgame" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-08-03T18:24:00.578665Z", "id": "CVE-2026-67354", "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": "2026-08-03T18:24:12.389Z" } } ] } }