How severe is CVE-2026-66832?

CVE-2026-66832 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-66832 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-66832?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-66832 published?

CVE-2026-66832 was published on 2026-08-11 and last updated on 2026-08-12.

CVE-2026-66832

CVE-2026-66832 is a medium-severity vulnerability with a CVSS 3.x base score of 6.5. 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-598.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 6.9
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-598
Published: 2026-08-11
Last modified: 2026-08-12

Description

When the Mira Android app opens in-app WebView content (e.g., shop redirect flows), the user's live session token is appended to the URL as a query string parameter, and a persistent user identifier is included in the WebView's User-Agent header. Both are then transmitted to third-party web properties, referrer logs, and any JavaScript running in the WebView context.

Frequently asked questions

What is CVE-2026-66832?: When the Mira Android app opens in-app WebView content (e.g., shop redirect flows), the user's live session token is appended to the URL as a query string parameter, and a persistent user identifier is included in the WebView's User-Agent header. Both are then transmitted to third-party web properties, referrer logs, and any JavaScript running in the WebView context.
How severe is CVE-2026-66832?: CVE-2026-66832 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-66832 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-66832?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-66832 published?: CVE-2026-66832 was published on 2026-08-11 and last updated on 2026-08-12.

References

Other CWE-598 vulnerabilities

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CVE-2025-56551 — High (CVSS 8.2): An issue in DirectAdmin v1.680 allows unauthorized attackers to manipulate the page layout and replace the legitimate…
CVE-2021-21594 — High (CVSS 8.2): Dell PowerScale OneFS versions 8.2.2 - 9.1.0.x contain a use of get request method with sensitive query strings…
CVE-2026-23846 — High (CVSS 8.1): Tugtainer is a self-hosted app for automating updates of Docker containers. In versions prior to 1.16.1, the password…

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