CVE-2026-2299General(mattermost / google_drive)

LOWCVSS 4.3 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

The Mattermost Google Drive plugin before version 1.1.0 fails to validate channel membership in the file creation endpoint, allowing authenticated users with a connected Google account to share Google Drive files to unauthorized private channels and disclose private channel membership.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-862

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • google_drive

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • General: 2 classified signals
  • Peaked 1d ago at 1 mentions (2026-08-14); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
Products
google_drive

1 version affected across 1 product

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-08-14: 1Mentions · 2026-08-15: 108-1408-15
Signal classification1 categories
General
2100.0%
Referenced assets2 URLs
Full discourse2 posts
  • ゆぅさん@YY20424277
    General

    「Mattermost, Inc.のGoogle Driveにおける認証の欠如に関する脆弱性(CVE-2026-2299)」をボードに上げるなら1ページでどう書く? 背景/目的/効果の3軸で要約しました。 #セキュリティ #経営報告 ▶ 無料プログラム: https://www.intect-i.jp/local-program/?utm_source=sns&utm_medium=social&utm_campaign=local_program

    Post summary

    The post references CVE‑2026‑2299 (Mattermost Google Drive authentication flaw) and suggests a board summary, but provides no exploitation, patch, or technical details.

    0000062
    843 followersView on X
  • ゆぅさん@YY20424277
    General

    もし自分の現場で「Mattermost, Inc.のGoogle Driveにおける認証の欠如に関する脆弱性(CVE-2026-2299)」が起きたら、最初の一手は何ですか? →背景/目的/効果の3軸でfirst-stepを整理しました。 #セキュリティ #インシデント対応 ▶ 無料トレーニング: https://www.intect-i.jp/training/free/?utm_source=sns&utm_medium=social&utm_campaign=free_training

    Post summary

    The post poses a question about initial incident response for CVE-2026-2299 and directs readers to a free training resource, but it provides no technical or exploit details.

    0000056
    843 followersView on X
CPE platform detail3 entries

3 of 3 entries

PartVendorProductVersionTarget SWTarget HW
Appmattermostgoogle_drive-mattermost-
Appmattermostgoogle_drive1.1.0mattermost-
Appmattermostgoogle_drive1.1.0mattermost-

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