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CVE-2026-9679 undici vulnerable to HTTP header injection via Set-Cookie percent-decoding

🗓️ 17 Jun 2026 16:56:18Reported by openjsType 
cvelist
 cvelist
🔗 www.cve.org👁 21 Views

CVE-2026-9679: undici cookie parsing percent-decodes values, enabling HTTP header injection when echoed in responses.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
Amazon
Important: nodejs22
7 Jul 202600:00
amazon
Chainguard
CVE-2026-9679 vulnerabilities
23 Jun 202608:16
cgr
Circl
CVE-2026-9679
17 Jun 202616:59
circl
CVE
CVE-2026-9679
17 Jun 202616:56
cve
Debian CVE
CVE-2026-9679
17 Jun 202616:56
debiancve
EUVD
EUVD-2026-37764
19 Jun 202614:21
euvd
Github Security Blog
undici vulnerable to HTTP header injection via Set-Cookie percent-decoding
19 Jun 202614:21
github
NVD
CVE-2026-9679
17 Jun 202618:18
nvd
Tenable Nessus
openSUSE 16 Security Update : nodejs22 (openSUSE-SU-2026:21058-1)
1 Jul 202600:00
nessus
Tenable Nessus
SUSE SLES15 Security Update : nodejs24 (SUSE-SU-2026:2633-1)
26 Jun 202600:00
nessus
Rows per page
[
  {
    "vendor": "undici",
    "product": "undici",
    "defaultStatus": "unaffected",
    "versions": [
      {
        "versionType": "semver",
        "status": "affected",
        "version": "0",
        "lessThan": "6.26.0"
      },
      {
        "versionType": "semver",
        "status": "unaffected",
        "version": "6.26.0"
      },
      {
        "versionType": "semver",
        "status": "affected",
        "version": "7.0.0",
        "lessThan": "7.28.0"
      },
      {
        "versionType": "semver",
        "status": "unaffected",
        "version": "7.28.0"
      },
      {
        "versionType": "semver",
        "status": "affected",
        "version": "8.0.0",
        "lessThan": "8.5.0"
      },
      {
        "versionType": "semver",
        "status": "unaffected",
        "version": "8.5.0"
      }
    ],
    "packageURL": "pkg:npm/undici"
  }
]

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