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EUVD-2026-38458

🗓️ 23 Jun 2026 15:07:36Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 4 Views

Guzzle PSR-7 before 2.12.1 did not reject CRLF in start lines, enabling header injection on serialize.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-55766
23 Jun 202615:07
attackerkb
Chainguard
CVE-2026-55766 vulnerabilities
23 Jun 202608:17
cgr
CVE
CVE-2026-55766
23 Jun 202615:07
cve
Cvelist
CVE-2026-55766 guzzlehttp/psr7: CRLF Injection in HTTP Start-Line Serialization
23 Jun 202615:07
cvelist
Debian CVE
CVE-2026-55766
23 Jun 202615:07
debiancve
Friends Of PHP
CRLF injection in HTTP start-line serialization
18 Jun 202609:49
friendsofphp
Github Security Blog
guzzlehttp/psr7: CRLF Injection in HTTP Start-Line Serialization
19 Jun 202614:35
github
NVD
CVE-2026-55766
23 Jun 202616:17
nvd
OSV
CGA-QW68-4G78-5CFX
22 Jun 202614:54
osv
OSV
DEBIAN-CVE-2026-55766
19 Jun 202607:48
osv
Rows per page
[
  {
    "enisaIdVendor": [
      {
        "id": "125d898b-2a1c-3831-be85-a23f58226171",
        "vendor": {
          "name": "guzzle"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "bb25ebce-361c-344f-b459-999d011b469d",
        "product": {
          "name": "psr7",
          "vendor": {
            "name": "guzzle"
          }
        },
        "product_version": "< 2.12.1"
      }
    ]
  }
]

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23 Jun 2026 15:49Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.14.8
SSVC
4