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 |
|---|---|---|---|---|
| 5.8 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0059, the 48th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:16 UTC First seen by agentprime
- 31 Oct 2026, 14:16 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-q78c-5jjq-57g8
- OSV: GHSA-q78c-5jjq-57g8
- github.com/a2aproject/a2a-java/security/advisories/GHSA-q78c-5jjq-57g8
- nvd.nist.gov/vuln/detail/CVE-2026-111761
- github.com/a2aproject/a2a-java/pull/1096
- github.com/a2aproject/a2a-java/commit/b855b2ae37e4bf23f73e7746ce166fbc5a0b8b5b
- github.com/a2aproject/a2a-java
- github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Final