Is yiisoft/yii2 affected by CVE-2026-39850?

Packagist yiisoft/yii2 is affected in <2.0.55.

Is CVE-2026-39850 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.4%.

high

CVE-2026-39850

Q: Is CVE-2026-39850 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.4%.

Packagist · yiisoft/yii2

Summary

Yii 2: Local file inclusion via view parameter name collision

Severity: high
EPSS: 0.4% (p35)
Also known as: GHSA-5vpg-rj7q-qpw2
Published: 2026-05-11

References

https://github.com/yiisoft/yii2/security/advisories/GHSA-5vpg-rj7q-qpw2
https://nvd.nist.gov/vuln/detail/CVE-2026-39850
https://github.com/yiisoft/yii2/commit/109878b491dbffa541032bc99fb5e26d12cd0375

Related advisories

CVE-2024-58136 — critical · Packagist/yiisoft/yii2
CVE-2024-4990 — high · Packagist/yiisoft/yii2
CVE-2024-32877 — medium · Packagist/yiisoft/yii2

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.