NVD Vulnerability Detail
Search Exploit, PoC
CVE-2026-4858
Summary

Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to check integration URL for path traversal which allows an malicious authenticated user to call an arbitrary API via system admin Mattermost auth token using via path traversal in integration action URL.. Mattermost Advisory ID: MMSA-2026-00640

Publication Date May 21, 2026, 6:16 p.m.
Registration Date May 22, 2026, 4:07 a.m.
Last Update May 22, 2026, 12:26 a.m.
CVSS3.1 : HIGH
スコア 8.0
Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC)
攻撃に必要な特権レベル(PR)
利用者の関与(UI)
影響の想定範囲(S) 変更あり
機密性への影響(C)
完全性への影響(I)
可用性への影響(A)
Related information, measures and tools
Common Vulnerabilities List