{"id":"CVE-2026-90790","state":"PUBLISHED","title":"a2aproject a2a-python Push Notification Sender base_push_notification_sender.py _dispatch_notification server-side request forgery","description":"A security vulnerability has been detected in a2aproject a2a-python up to 1.1.3. This affects the function _dispatch_notification of the file src/a2a/server/tasks/base_push_notification_sender.py of the component Push Notification Sender. The manipulation of the argument push_info.url leads to server-side request forgery. Remote exploitation of the attack is possible. Upgrading to version 1.1.4 is able to mitigate this issue. It is suggested to upgrade the affected component.","publishedAt":"2026-09-14T14:30:35.448Z","updatedAt":"2026-09-15T13:56:53.326Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X","source":"VulDB"},"assigner":"VulDB","products":["a2aproject a2a-python"],"affected":[{"vendor":"a2aproject","product":"a2a-python","versions":[{"version":"1.1.0","status":"affected"},{"version":"1.1.1","status":"affected"},{"version":"1.1.2","status":"affected"},{"version":"1.1.3","status":"affected"},{"version":"1.1.4","status":"unaffected"}],"cpes":["cpe:2.3:a:a2aproject:a2a-python:*:*:*:*:*:*:*:*"],"modules":["Push Notification Sender"]}],"references":["https://vuldb.com/vuln/403296","https://vuldb.com/vuln/403296/cti","https://vuldb.com/cve/CVE-2026-90790","https://vuldb.com/submit/919747","https://github.com/a2aproject/a2a-python/pull/1164","https://github.com/a2aproject/a2a-python/pull/1169","https://github.com/a2aproject/a2a-python/releases/tag/v1.1.4","https://github.com/a2aproject/a2a-python/"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/90xxx/CVE-2026-90790.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90790","state":"PUBLISHED","datePublished":"2026-09-14T14:30:35.448Z","dateUpdated":"2026-09-15T13:56:53.326Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-09-13T13:24:51.272Z"},"containers":{"cna":{"title":"a2aproject a2a-python Push Notification Sender base_push_notification_sender.py _dispatch_notification server-side request forgery","descriptions":[{"lang":"en","value":"A security vulnerability has been detected in a2aproject a2a-python up to 1.1.3. This affects the function _dispatch_notification of the file src/a2a/server/tasks/base_push_notification_sender.py of the component Push Notification Sender. The manipulation of the argument push_info.url leads to server-side request forgery. Remote exploitation of the attack is possible. Upgrading to version 1.1.4 is able to mitigate this issue. It is suggested to upgrade the affected component."}],"affected":[{"vendor":"a2aproject","product":"a2a-python","versions":[{"version":"1.1.0","status":"affected"},{"version":"1.1.1","status":"affected"},{"version":"1.1.2","status":"affected"},{"version":"1.1.3","status":"affected"},{"version":"1.1.4","status":"unaffected"}],"cpes":["cpe:2.3:a:a2aproject:a2a-python:*:*:*:*:*:*:*:*"],"modules":["Push Notification Sender"]}],"references":[{"url":"https://vuldb.com/vuln/403296","name":"VDB-403296 | a2aproject a2a-python Push Notification Sender base_push_notification_sender.py _dispatch_notification server-side request forgery","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/403296/cti","name":"VDB-403296 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-90790","name":"CVE-2026-90790 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/919747","name":"Submit #919747 | a2aproject a2a-python v1.1.2 ssrf","tags":["third-party-advisory"]},{"url":"https://github.com/a2aproject/a2a-python/pull/1164","tags":["issue-tracking","patch"]},{"url":"https://github.com/a2aproject/a2a-python/pull/1169","tags":["issue-tracking","patch"]},{"url":"https://github.com/a2aproject/a2a-python/releases/tag/v1.1.4","tags":["patch"]},{"url":"https://github.com/a2aproject/a2a-python/","tags":["product"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":5.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":6.3,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":6.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":6.5,"vectorString":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:OF/RC:C"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","type":"CWE","lang":"en","description":"Server-Side Request Forgery"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-09-14T14:30:35.448Z"},"timeline":[{"time":"2026-09-13T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-09-13T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-09-13T15:29:55.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"ez-lbz (VulDB User)","type":"reporter"}],"x_generator":["VulDB PVTS v202609"]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-15T13:33:15.907930Z","id":"CVE-2026-90790","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-15T13:56:53.326Z"}}]}}}