01 Record
CVE-2026-111761
A2A Java SDK has Server-Side Request Forgery (SSRF) in push-notification delivery
MediumPUBLISHEDCNA: GitHub_M
CNA base score5.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
02 Description
A2A Java SDK has Server-Side Request Forgery (SSRF) in push-notification delivery
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.58% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 47.7% of scored records. A rank, not a probability.
- NVD base score
- 5.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-10-22.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-20 14:54Z9 DAYS AGO
- Last updated
- 2026-10-22 21:30Z6 DAYS AGO
- Reserved
- 2026-10-16
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.8)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
- Weaknesses
- CWE-918Server-Side Request Forgery (SSRF)Base
- Data version
- 5.2
- Document digest
- 55f0d43d6d5ffe69c91fa70bae23893d422812d80969aa9a0ccc8874d6d6131c
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comhttps://github.com/a2aproject/a2a-java/security/advisories/GHSA-q78c-5jjq-57g8
- github.comhttps://github.com/a2aproject/a2a-java/pull/1096
- github.comhttps://github.com/a2aproject/a2a-java/commit/b855b2ae37e4bf23f73e7746ce166fbc5a0b8b5b
- github.comhttps://github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Final