Lucene search
K

CVE-2026-2457 WebSocket Message Spoofing via Permalink Embed Manipulation

🗓️ 16 Mar 2026 11:20:25Reported by MattermostType 
cvelist
 cvelist
🔗 www.cve.org👁 24 Views

Mattermost permits impersonation via permalink embeds from unsanitized post metadata in authenticated PUT updates.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-2457
16 Mar 202611:20
attackerkb
Circl
CVE-2026-2457
16 Feb 202600:00
circl
CNNVD
Mattermost 安全漏洞
16 Mar 202600:00
cnnvd
CVE
CVE-2026-2457
16 Mar 202611:20
cve
EUVD
EUVD-2026-12407
16 Mar 202615:30
euvd
Github Security Blog
Mattermost allows attackers to spoof permalink embeds
16 Mar 202615:30
github
NVD
CVE-2026-2457
16 Mar 202614:19
nvd
OSV
GHSA-PH22-FW5M-W2Q9 Mattermost allows attackers to spoof permalink embeds
16 Mar 202615:30
osv
OSV
GO-2026-4732 Mattermost allows attackers to spoof permalink embeds in github.com/mattermost/mattermost-server
23 Mar 202618:14
osv
OSV
SUSE-SU-2026:1135-1 Security update for govulncheck-vulndb
27 Mar 202617:33
osv
Rows per page
[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "11.3.0",
        "status": "affected",
        "version": "11.3.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "11.2.2",
        "status": "affected",
        "version": "11.2.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "10.11.10",
        "status": "affected",
        "version": "10.11.0",
        "versionType": "semver"
      },
      {
        "version": "11.4.0",
        "status": "unaffected"
      },
      {
        "version": "11.3.1",
        "status": "unaffected"
      },
      {
        "version": "11.2.3",
        "status": "unaffected"
      },
      {
        "version": "10.11.11",
        "status": "unaffected"
      }
    ]
  }
]

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation