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CVE-2026-13426

🗓️ 26 Jun 2026 13:47:10Reported by MattermostType 
cve
 cve
🔗 web.nvd.nist.gov👁 62 Views🌐 WEB

CVE-2026-13426: Mattermost Client4 path parameter validation failure before v0.1.22.

Related
Affected
Refs
Paths
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-13426
26 Jun 202613:47
–attackerkb
cvelist
Cvelist
CVE-2026-13426 Client4 fails to validate path parameters
26 Jun 202613:47
–cvelist
euvd
EUVD
EUVD-2026-39661
26 Jun 202615:32
–euvd
mend
Mend
CVE-2026-13426
26 Jun 202613:47
–mend
nvd
NVD
CVE-2026-13426
26 Jun 202614:17
–nvd
ptsecurity
Positive Technologies
PT-2026-52708
26 Jun 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-13426: Improper Limitation of a Pathname to a Restricted Directory
26 Jun 202600:00
–rapid7
vulnrichment
Vulnrichment
CVE-2026-13426 Client4 fails to validate path parameters
26 Jun 202613:47
–vulnrichment
[
  {
    "defaultStatus": "unaffected",
    "product": "github.com/mattermost/mattermost/server/public",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThan": "v0.1.22",
        "status": "affected",
        "version": "v0.0.0",
        "versionType": "semver"
      },
      {
        "version": "v0.1.22",
        "status": "unaffected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
idpath/api/v1/channels/{id}Path traversal in the 'id' parameter of the channels API endpoint allows redirecting API calls to unintended endpoints.CWE-22

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25 Oct 2026 22:10Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.4
EPSS0.00291
SSVC
62