CVE-2026-117503
A vulnerability was determined in a2aproject a2a-go up to 2.4.0
- Risk score
- 42/100
- CVSS
- 5.3 v3.1
- Exploit chance (30 days)
- 0.7%
- Published
- 27 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- A vulnerability was determined in a2aproject a2a-go up to 2.4.0. Impacted is an unknown function of the file a2asrv/rest.go of the component REST SSE handler. This manipulation causes resource consumption. It is possible to initiate the attack remotely. Upgrading to version 2.5.0 is recommended to address this issue. …
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 5.3 medium
References
- https://github.com/a2aproject/a2a-go/
- https://github.com/a2aproject/a2a-go/commit/ff6035bd21e44bb3ee1bfa547885b8c08327fa01
- https://github.com/a2aproject/a2a-go/pull/396
- https://github.com/a2aproject/a2a-go/releases/tag/v2.5.0
- https://vuldb.com/cve/CVE-2026-117503
- https://vuldb.com/submit/1015052
- https://vuldb.com/vuln/427070
- https://vuldb.com/vuln/427070/cti
Original description
A vulnerability was determined in a2aproject a2a-go up to 2.4.0. Impacted is an unknown function of the file a2asrv/rest.go of the component REST SSE handler. This manipulation causes resource consumption. It is possible to initiate the attack remotely. Upgrading to version 2.5.0 is recommended to address this issue. Patch name: ff6035bd21e44bb3ee1bfa547885b8c08327fa01. It is recommended to upgrade the affected component.
Last activity 27 Oct 2026. Patch Forecast updates every hour.