Lucene search
+L

CVE-2026-2455: Server-Side Request Forgery (SSRF)

🗓️ 16 Mar 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com👁 3 Views

Mattermost 10.11.x-11.3.x SSRF via non-canonicalized IPv4-mapped IPv6 addresses.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-2455
16 Mar 202614:53
–attackerkb
bdu_fstec
BDU FSTEC
Mattermost SSRF
13 May 202600:00
–bdu_fstec
cnnvd
CNNVD
Mattermost 安全漏洞
16 Mar 202600:00
–cnnvd
cve
CVE
CVE-2026-2455
16 Mar 202614:53
–cve
cvelist
Cvelist
CVE-2026-2455 SSRF bypass via IPv4-mapped IPv6 literals
16 Mar 202614:53
–cvelist
euvd
EUVD
EUVD-2026-12441
16 Mar 202615:30
–euvd
github
Github Security Blog
Mattermost fails to canonicalize IPv4-mapped IPv6 addresses before reserved IP validation
16 Mar 202615:30
–github
mend
Mend
CVE-2026-2455
16 Mar 202614:53
–mend
nvd
NVD
CVE-2026-2455
16 Mar 202615:16
–nvd
osv_ghsa
osv_ghsa
GHSA-GQV7-J2J8-QMWQ Mattermost fails to canonicalize IPv4-mapped IPv6 addresses before reserved IP validation
16 Mar 202615:30
–osv_ghsa
Rows per page

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

18 Mar 2026 00:00Current
6.4Medium risk
Vulners AI Score6.4
CVSS 3.14.3
EPSS0.00168
SSVC
3