Vulnerability Details CVE-2026-59883
Guzzle is an extensible PHP HTTP client. Prior to 7.12.3, CookieJar did not restrict cookies scoped to IP-address or bare-numeric Domain values to the exact host that set them, because SetCookie::matchesDomain() applied ordinary suffix matching to domains such as 192.168.0.1, [::1], or 1, allowing cross-host cookie disclosure, cookie injection, or session fixation. This issue is fixed in version 7.12.3.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 1.8%
CVSS Severity
CVSS v3 Score 4.7
Products affected by CVE-2026-59883
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cpe:2.3:a:guzzlephp:guzzle:1.0.0
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cpe:2.3:a:guzzlephp:guzzle:1.0.1
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cpe:2.3:a:guzzlephp:guzzle:1.0.2
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cpe:2.3:a:guzzlephp:guzzle:1.0.3
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cpe:2.3:a:guzzlephp:guzzle:1.0.4
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cpe:2.3:a:guzzlephp:guzzle:2.0.0
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cpe:2.3:a:guzzlephp:guzzle:2.0.1
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cpe:2.3:a:guzzlephp:guzzle:2.0.2
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cpe:2.3:a:guzzlephp:guzzle:2.0.3
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cpe:2.3:a:guzzlephp:guzzle:2.0.4
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cpe:2.3:a:guzzlephp:guzzle:2.0.5
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cpe:2.3:a:guzzlephp:guzzle:2.1.0
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cpe:2.3:a:guzzlephp:guzzle:2.1.1
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cpe:2.3:a:guzzlephp:guzzle:2.1.2
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cpe:2.3:a:guzzlephp:guzzle:2.1.3
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cpe:2.3:a:guzzlephp:guzzle:2.1.4
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cpe:2.3:a:guzzlephp:guzzle:2.2.0
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cpe:2.3:a:guzzlephp:guzzle:2.2.1
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cpe:2.3:a:guzzlephp:guzzle:2.2.2
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cpe:2.3:a:guzzlephp:guzzle:2.2.3
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cpe:2.3:a:guzzlephp:guzzle:2.2.4
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cpe:2.3:a:guzzlephp:guzzle:2.3.0
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cpe:2.3:a:guzzlephp:guzzle:2.3.1
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cpe:2.3:a:guzzlephp:guzzle:2.3.2
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cpe:2.3:a:guzzlephp:guzzle:2.4.0
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cpe:2.3:a:guzzlephp:guzzle:2.4.1
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cpe:2.3:a:guzzlephp:guzzle:2.5.0
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cpe:2.3:a:guzzlephp:guzzle:2.6.0
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cpe:2.3:a:guzzlephp:guzzle:2.6.1
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cpe:2.3:a:guzzlephp:guzzle:2.6.2
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cpe:2.3:a:guzzlephp:guzzle:2.6.3
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cpe:2.3:a:guzzlephp:guzzle:2.6.4
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cpe:2.3:a:guzzlephp:guzzle:2.6.5
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cpe:2.3:a:guzzlephp:guzzle:2.6.6
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cpe:2.3:a:guzzlephp:guzzle:2.7.0
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cpe:2.3:a:guzzlephp:guzzle:2.7.1
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cpe:2.3:a:guzzlephp:guzzle:2.7.2
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cpe:2.3:a:guzzlephp:guzzle:2.8.0
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cpe:2.3:a:guzzlephp:guzzle:2.8.1
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cpe:2.3:a:guzzlephp:guzzle:2.8.2
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cpe:2.3:a:guzzlephp:guzzle:2.8.3
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cpe:2.3:a:guzzlephp:guzzle:2.8.4
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cpe:2.3:a:guzzlephp:guzzle:2.8.5
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cpe:2.3:a:guzzlephp:guzzle:2.8.6
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cpe:2.3:a:guzzlephp:guzzle:2.8.7
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cpe:2.3:a:guzzlephp:guzzle:2.8.8
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cpe:2.3:a:guzzlephp:guzzle:3.0.0
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cpe:2.3:a:guzzlephp:guzzle:3.0.1
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cpe:2.3:a:guzzlephp:guzzle:3.0.2
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cpe:2.3:a:guzzlephp:guzzle:3.0.3
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cpe:2.3:a:guzzlephp:guzzle:3.0.4
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cpe:2.3:a:guzzlephp:guzzle:3.0.5
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cpe:2.3:a:guzzlephp:guzzle:3.0.6
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cpe:2.3:a:guzzlephp:guzzle:3.0.7
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cpe:2.3:a:guzzlephp:guzzle:3.1.0
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cpe:2.3:a:guzzlephp:guzzle:3.1.1
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cpe:2.3:a:guzzlephp:guzzle:3.1.2
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cpe:2.3:a:guzzlephp:guzzle:3.2.0
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cpe:2.3:a:guzzlephp:guzzle:3.3.0
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cpe:2.3:a:guzzlephp:guzzle:3.3.1
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cpe:2.3:a:guzzlephp:guzzle:3.4.0
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cpe:2.3:a:guzzlephp:guzzle:3.4.1
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cpe:2.3:a:guzzlephp:guzzle:3.4.2
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cpe:2.3:a:guzzlephp:guzzle:3.4.3
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cpe:2.3:a:guzzlephp:guzzle:3.5.0
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cpe:2.3:a:guzzlephp:guzzle:3.6.0
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cpe:2.3:a:guzzlephp:guzzle:3.7.0
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cpe:2.3:a:guzzlephp:guzzle:3.7.1
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cpe:2.3:a:guzzlephp:guzzle:3.7.2
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cpe:2.3:a:guzzlephp:guzzle:3.7.3
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cpe:2.3:a:guzzlephp:guzzle:3.7.4
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cpe:2.3:a:guzzlephp:guzzle:3.8.0
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cpe:2.3:a:guzzlephp:guzzle:3.8.1
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cpe:2.3:a:guzzlephp:guzzle:4.0.0
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cpe:2.3:a:guzzlephp:guzzle:4.0.1
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cpe:2.3:a:guzzlephp:guzzle:4.0.2
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cpe:2.3:a:guzzlephp:guzzle:4.1.0
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cpe:2.3:a:guzzlephp:guzzle:4.1.1
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cpe:2.3:a:guzzlephp:guzzle:4.1.2
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cpe:2.3:a:guzzlephp:guzzle:4.1.3
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cpe:2.3:a:guzzlephp:guzzle:4.1.4
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cpe:2.3:a:guzzlephp:guzzle:4.1.5
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cpe:2.3:a:guzzlephp:guzzle:4.1.6
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cpe:2.3:a:guzzlephp:guzzle:4.1.7
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cpe:2.3:a:guzzlephp:guzzle:4.1.8
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cpe:2.3:a:guzzlephp:guzzle:4.2.0
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cpe:2.3:a:guzzlephp:guzzle:4.2.1
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cpe:2.3:a:guzzlephp:guzzle:4.2.2
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cpe:2.3:a:guzzlephp:guzzle:4.2.3
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cpe:2.3:a:guzzlephp:guzzle:4.2.4
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cpe:2.3:a:guzzlephp:guzzle:5.0.0
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cpe:2.3:a:guzzlephp:guzzle:5.0.1
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cpe:2.3:a:guzzlephp:guzzle:5.0.2
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cpe:2.3:a:guzzlephp:guzzle:5.0.3
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cpe:2.3:a:guzzlephp:guzzle:5.1.0
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cpe:2.3:a:guzzlephp:guzzle:5.2.0
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cpe:2.3:a:guzzlephp:guzzle:5.3.0
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cpe:2.3:a:guzzlephp:guzzle:5.3.1
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cpe:2.3:a:guzzlephp:guzzle:5.3.2
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cpe:2.3:a:guzzlephp:guzzle:5.3.3
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cpe:2.3:a:guzzlephp:guzzle:5.3.4
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cpe:2.3:a:guzzlephp:guzzle:6.0.0
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cpe:2.3:a:guzzlephp:guzzle:6.0.1
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cpe:2.3:a:guzzlephp:guzzle:6.0.2
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cpe:2.3:a:guzzlephp:guzzle:6.1.0
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cpe:2.3:a:guzzlephp:guzzle:6.1.1
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cpe:2.3:a:guzzlephp:guzzle:6.2.0
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cpe:2.3:a:guzzlephp:guzzle:6.2.1
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cpe:2.3:a:guzzlephp:guzzle:6.2.2
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cpe:2.3:a:guzzlephp:guzzle:6.2.3
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cpe:2.3:a:guzzlephp:guzzle:6.3.0
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cpe:2.3:a:guzzlephp:guzzle:6.3.1
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cpe:2.3:a:guzzlephp:guzzle:6.3.2
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cpe:2.3:a:guzzlephp:guzzle:6.3.3
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cpe:2.3:a:guzzlephp:guzzle:6.4.0
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cpe:2.3:a:guzzlephp:guzzle:6.4.1
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cpe:2.3:a:guzzlephp:guzzle:6.5.0
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cpe:2.3:a:guzzlephp:guzzle:6.5.1
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cpe:2.3:a:guzzlephp:guzzle:6.5.2
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cpe:2.3:a:guzzlephp:guzzle:6.5.3
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cpe:2.3:a:guzzlephp:guzzle:6.5.4
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cpe:2.3:a:guzzlephp:guzzle:6.5.5
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cpe:2.3:a:guzzlephp:guzzle:6.5.6
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cpe:2.3:a:guzzlephp:guzzle:6.5.7
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cpe:2.3:a:guzzlephp:guzzle:6.5.8
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cpe:2.3:a:guzzlephp:guzzle:7.0.0
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cpe:2.3:a:guzzlephp:guzzle:7.0.1
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cpe:2.3:a:guzzlephp:guzzle:7.1.0
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cpe:2.3:a:guzzlephp:guzzle:7.1.1
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cpe:2.3:a:guzzlephp:guzzle:7.10.0
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cpe:2.3:a:guzzlephp:guzzle:7.10.1
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cpe:2.3:a:guzzlephp:guzzle:7.10.2
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cpe:2.3:a:guzzlephp:guzzle:7.10.3
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cpe:2.3:a:guzzlephp:guzzle:7.10.4
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cpe:2.3:a:guzzlephp:guzzle:7.10.5
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cpe:2.3:a:guzzlephp:guzzle:7.10.6
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cpe:2.3:a:guzzlephp:guzzle:7.11.0
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cpe:2.3:a:guzzlephp:guzzle:7.11.1
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cpe:2.3:a:guzzlephp:guzzle:7.11.2
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cpe:2.3:a:guzzlephp:guzzle:7.12.0
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cpe:2.3:a:guzzlephp:guzzle:7.12.1
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cpe:2.3:a:guzzlephp:guzzle:7.12.2
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cpe:2.3:a:guzzlephp:guzzle:7.2.0
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cpe:2.3:a:guzzlephp:guzzle:7.3.0
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cpe:2.3:a:guzzlephp:guzzle:7.4.0
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cpe:2.3:a:guzzlephp:guzzle:7.4.1
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cpe:2.3:a:guzzlephp:guzzle:7.4.2
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cpe:2.3:a:guzzlephp:guzzle:7.4.3
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cpe:2.3:a:guzzlephp:guzzle:7.4.4
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cpe:2.3:a:guzzlephp:guzzle:7.4.5
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cpe:2.3:a:guzzlephp:guzzle:7.5.0
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cpe:2.3:a:guzzlephp:guzzle:7.5.1
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cpe:2.3:a:guzzlephp:guzzle:7.5.2
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cpe:2.3:a:guzzlephp:guzzle:7.5.3
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cpe:2.3:a:guzzlephp:guzzle:7.6.0
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cpe:2.3:a:guzzlephp:guzzle:7.6.1
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cpe:2.3:a:guzzlephp:guzzle:7.7.0
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cpe:2.3:a:guzzlephp:guzzle:7.7.1
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cpe:2.3:a:guzzlephp:guzzle:7.8.0
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cpe:2.3:a:guzzlephp:guzzle:7.8.1
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cpe:2.3:a:guzzlephp:guzzle:7.8.2
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cpe:2.3:a:guzzlephp:guzzle:7.9.0
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cpe:2.3:a:guzzlephp:guzzle:7.9.1
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cpe:2.3:a:guzzlephp:guzzle:7.9.2
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cpe:2.3:a:guzzlephp:guzzle:7.9.3