CVE-2026-15342General

LOWCVSS 6.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Plane contains a multi‑tenant authorization flaw in its asset‑management API that allows authenticated users from one workspace to access, delete, or duplicate assets belonging to another workspace by providing only the victim workspace slug and asset ID. The affected endpoints return presigned file URLs and enable destructive or duplicative actions without verifying that the requester is a member of the targeted workspace. This enables cross‑tenant data exposure, data deletion, and persistent exfiltration of files into an attacker‑controlled workspace.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-552CWE-639

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • General: 1 classified signal
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-07-22); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-07-22: 1Mentions · 2026-07-27: 1Patch / Workaround · 2026-07-27: 1Technical Details · 2026-07-22: 1Technical Details · 2026-07-27: 107-2207-27
Signal classification2 categories
General
150.0%
Disclosure
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-07-221
General1
2026-07-271
Disclosure1
Full discourse2 posts
  • Daily CyberSecurity@Daily_CyberSec
    Disclosure

    CERT/CC warns of a Plane authorization bypass, CVE-2026-15342. It lets users reach other workspaces' files, and no patch exists yet. #Plane #CVE202615342 #AuthorizationBypass #MultiTenant #CERTCC #Vulnerability #Cybersecurity http://securityonline.info/plane-authorization-bypass-cve-2026-15342/

    Post summary

    The tweet announces the Plane authorization bypass CVE‑2026‑15342, noting it permits cross‑workspace file access and that no patch is currently available.

    00000373
    12.6K followersView on X
  • Autumn Good@autumn_good_35
    General

    『allows unauthorized users to access, delete, or duplicate assets that belong to other workspaces.』 CVE-2026-15342 VU#762226 - Plane contains multi-tenant authorization bypass vulnerability https://kb.cert.org/vuls/id/762226

    Post summary

    The snippet highlights a multi‑tenant authorization bypass allowing unauthorized asset manipulation, but it offers no evidence of PoC, exploitation, patching, or false‑positive status.

    00000559
    6.9K followersView on X

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