How severe is CVE-2026-90860?

CVE-2026-90860 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity high, and availability none.

Is CVE-2026-90860 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-90860?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-90860 published?

CVE-2026-90860 was published on 2026-09-21.

CVE-2026-90860

CVE-2026-90860 is a high-severity vulnerability with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-212.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-212
Published: 2026-09-21
Last modified: 2026-09-21

Description

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.

Frequently asked questions

What is CVE-2026-90860?: 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.
How severe is CVE-2026-90860?: CVE-2026-90860 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity high, and availability none.
Is CVE-2026-90860 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-90860?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-90860 published?: CVE-2026-90860 was published on 2026-09-21.

References

https://trust.canva.com?tcuUid=c17214e0-e758-4472-8238-abeb79faff07

Other CWE-212 vulnerabilities

CVE-2022-2818 — Critical (CVSS 9.8): Improper Removal of Sensitive Information Before Storage or Transfer in GitHub repository cockpit-hq/cockpit prior to…
CVE-2020-11684 — Critical (CVSS 9.1): AT91bootstrap before 3.9.2 does not properly wipe encryption and authentication keys from memory before passing control…
CVE-2026-85094 — High (CVSS 8.8): The Canva Android App before 2.376.0 did not restrict the headers returned to an external origin running in a…
CVE-2026-39937 — High (CVSS 8.8): Improper removal of sensitive information before storage or transfer vulnerability in The Wikimedia Foundation…
CVE-2022-30617 — High (CVSS 8.8): An authenticated user with access to the Strapi admin panel can view private and sensitive data, such as email and…
CVE-2022-0355 — High (CVSS 8.8): Improper Removal of Sensitive Information Before Storage or Transfer in NPM simple-get prior to 4.0.1.

Browse all CWE-212 vulnerabilities →