EUVD-2026-70915
GHSA-7ppm-cm7m-926r
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Session token theft yields C:H and I:H via account takeover; A:H is not supported because header disclosure alone does not directly cause availability loss.
Primary rating from Vendor (Canva).
CVSS VectorVendor: Canva
Lifecycle Timeline
5DescriptionCVE.org
The Canva Android App before 2.376.0 did not restrict the headers returned to an external origin running in a privileged WebView. A threat actor with control of the WebView could access a user’s session.
AnalysisAI
Session hijacking in the Canva Android App before version 2.376.0 arises from an unrestricted header-reflection flaw in a privileged WebView component. An attacker who can control an external origin loaded within that WebView receives sensitive HTTP headers - including session tokens - that the app fails to suppress, exposing the authenticated user's session and enabling full account takeover. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that a threat actor achieve control over an external origin loaded inside Canva's privileged Android WebView. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 8.8 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) rates this as High severity; the C:H and I:H components are well-grounded given that session token theft enables full account takeover with read and write access to the victim's Canva workspace. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Update the Canva Android App to version 2.376.0 or later, which is the vendor-confirmed fix per the Canva trust advisory at https://trust.canva.com/?tcuUid=be2ebc32-7053-4885-bf71-68771aa4589a. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, activate your mobile device management (MDM) or employee communications to alert all Android users to immediately update Canva to version 2.376.0 or later, marking this as a security priority. …
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External POC / Exploit Code
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