Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 2.1 | Low | 4.0 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0018, the 7th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 13:58 UTC First seen by agentprime
- 31 Oct 2026, 13:58 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-4m4j-hmqq-3gxm
- OSV: GHSA-4m4j-hmqq-3gxm
- github.com/symfony/ux/security/advisories/GHSA-4m4j-hmqq-3gxm
- github.com/symfony/ux/commit/aed7493db2b4b7bf1f9c79b33cda544f06904b27
- github.com/FriendsOfPHP/security-advisories/blob/master/symfony/ux-live-component/CVE-2026-49215.yaml
- github.com/symfony/ux