Canva Fixes HarmonyOS Mobile Session Exposure
Tech GuruQuick Answer
The authority published CVE-2026-90860 for Canva Mobile App for HarmonyOS before 1.15.1. The Canva Mobile App for HarmonyOS before v1.15.1 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. Affected deployments should be matched to the authority's exact scope and moved to the supported fixed release.
Confirm Scope And Apply The Supported Fix
What to do now: Inventory Canva Mobile App for HarmonyOS before 1.15.1, match the exact affected release or feature, apply the authority-supported fixed build or service remediation, validate the dependent workflow, and preserve evidence.
Last verified: 2026-09-21 UTC. Recheck the authoritative advisory and supported distribution channel before changing production.
Scope And Authority
| Product scope | Canva Mobile App for HarmonyOS before 1.15.1 |
|---|---|
| Advisory | CVE-2026-90860 |
| CVE | CVE-2026-90860 |
| Authoritative release date | 2026-09-21 06:43:02.132 UTC |
| Authority revision date | 2026-09-21 06:43:02.132 UTC |
| Affected versions | Canva Mobile App for HarmonyOS before 1.15.1 |
| Fixed version | Canva Mobile App for HarmonyOS 1.15.1 |
| CVSS base score | 7.1 (CVSS v3.1) |
| CVSS severity | High |
| Exploitation status | Not stated by the authority; no exploitation claim is inferred. |
What Changed
The Canva Mobile App for HarmonyOS before v1.15.1 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.
What To Validate Now
- Inventory. Locate Canva Mobile App for HarmonyOS before 1.15.1 deployments, versions, enabled features, exposure paths, owners, and dependent services.
- Establish applicability. Compare each deployment with the authority's affected-version statement: Canva Mobile App for HarmonyOS before 1.15.1 Do not infer applicability from product family or severity alone.
- Remediate. Apply Canva Mobile App for HarmonyOS 1.15.1 through the supported vendor or project channel, following the current advisory and change-control requirements.
- Validate. Confirm the resulting version or managed-service state, exercise representative functionality and recovery paths, monitor for regressions, and document exceptions.
- Retain evidence. Preserve asset and owner identifiers, the applicability decision, before-and-after versions, change approval, installation output, validation results, and any exception or rollback record.
Operational Cautions
Use the exact supported release stream and repository. Test dependencies, clusters, integrations, and rollback before broad deployment; a CVSS rating or reachable feature is not evidence of exploitation.
Evidence To Retain
- Exact product, release stream, package or application version, enabled feature, environment, and accountable owner.
- UTC timestamps, authority revision, approved change record, installer or package-manager output, and resulting version.
- Relevant logs and monitoring evidence, test results, exceptions, compensating controls, and rollback decisions.
Related TechGeeks Resources
Authoritative References
Correction policy: If the authority changes affected versions, fixed versions, severity, exploitation information, mitigations, or required action, TechGeeks will update this notice and its verification date.
