{"answers":{"affected":"15 open source packages ship an affected version, including grpc and grpcio. It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-4785 in the wild and no public exploit code.","fix":"Upgrade grpc to a fixed version for your release line: 1.53.2, 1.54.3, 1.55.3 or 1.56.2.","what":"CVE-2023-4785 is a high-severity denial of service vulnerability in Google gRPC, published on 13 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-4785 and fix it if it is affected.\n\nWhat it is: CVE-2023-4785 is a high-severity denial of service vulnerability in Google gRPC, published on 13 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-4785 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- grpc (RubyGems): affected from 1.53.0; fixed in 1.53.2\n- grpc (RubyGems): affected from 1.53.0; fixed in 1.53.2\n- grpc (RubyGems): affected from 1.54.0; fixed in 1.54.3\n- grpc (RubyGems): affected from 1.54.0; fixed in 1.54.3\n- grpc (RubyGems): affected from 1.55.0; fixed in 1.55.3\n- grpc (RubyGems): affected from 1.55.0; fixed in 1.55.3\n- grpc (RubyGems): affected from 1.56.0; fixed in 1.56.2\n- grpc (RubyGems): affected from 1.56.0; fixed in 1.56.2\n- grpcio (PyPI): affected from 1.53.0; fixed in 1.53.2\n- grpcio (PyPI): affected from 1.53.0; fixed in 1.53.2\n- grpcio (PyPI): affected from 1.54.0; fixed in 1.54.3\n- grpcio (PyPI): affected from 1.54.0; fixed in 1.54.3\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-4785/ (Markdown: https://insights.sbomify.com/CVE-2023-4785/index.md)","id":"CVE-2023-4785","markdown":"https://insights.sbomify.com/CVE-2023-4785/index.md","name":"CVE-2023-4785","record":{"aliases":["AZL-34772","BELL-CVE-2023-4785","DEBIAN-CVE-2023-4785","ECHO-050a-2d98-bb04","GHSA-p25m-jpj4-qcrr","OESA-2023-1682","OESA-2023-1726","PYSEC-2026-1428","UBUNTU-CVE-2023-4785"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"gRPC Core library","requires_auth":"none","summary":"An attacker can cause a denial of service in gRPC Core on POSIX platforms by initiating numerous connections due to lack of error handling.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Google","cpe":[{"product":"grpc","vendor":"grpc"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-248","name":"Uncaught Exception"}],"description":"Lack of error handling in the TCP server in Google's gRPC starting version 1.23 on posix-compatible platforms (ex. Linux) allows an attacker to cause a denial of service by initiating a significant number of connections with the server. Note that gRPC C++ Python, and Ruby are affected, but gRPC Java, and Go are NOT affected.","ecosystems":["PyPI","RubyGems"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Denial of Service in gRPC Core","id":"CVE-2023-4785","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":15,"n_references":5,"next":{"headline":"Duplicate Post Page Menu \u0026 Custom Post Type \u003c= 2.3.1 - Missing Authorization to Post Duplication","id":"CVE-2023-4792"},"packages":[{"ecosystem":"PyPI","fixed":["1.53.2"],"introduced":["1.53.0"],"last_affected":[],"package":"grpcio","purl":null,"source":"GHSA-p25m-jpj4-qcrr"},{"ecosystem":"PyPI","fixed":["1.53.2"],"introduced":["1.53.0"],"last_affected":[],"package":"grpcio","purl":"pkg:pypi/grpcio","source":"GHSA-p25m-jpj4-qcrr"},{"ecosystem":"PyPI","fixed":["1.54.3"],"introduced":["1.54.0"],"last_affected":[],"package":"grpcio","purl":null,"source":"GHSA-p25m-jpj4-qcrr"},{"ecosystem":"PyPI","fixed":["1.54.3"],"introduced":["1.54.0"],"last_affected":[],"package":"grpcio","purl":"pkg:pypi/grpcio","source":"GHSA-p25m-jpj4-qcrr"},{"ecosystem":"PyPI","fixed":["1.55.3","1.54.3","1.53.2"],"introduced":["1.55.0","1.54.0","1.53.0"],"last_affected":[],"package":"grpcio","purl":"pkg:pypi/grpcio","source":"PYSEC-2026-1428"},{"ecosystem":"PyPI","fixed":["1.55.3"],"introduced":["1.55.0"],"last_affected":[],"package":"grpcio","purl":null,"source":"GHSA-p25m-jpj4-qcrr"},{"ecosystem":"PyPI","fixed":["1.55.3"],"introduced":["1.55.0"],"last_affected":[],"package":"grpcio","purl":"pkg:pypi/grpcio","source":"GHSA-p25m-jpj4-qcrr"},{"ecosystem":"RubyGems","fixed":["1.53.2"],"introduced":["1.53.0"],"last_affected":[],"package":"grpc","purl":null,"source":"GHSA-p25m-jpj4-qcrr"},{"ecosystem":"RubyGems","fixed":["1.53.2"],"introduced":["1.53.0"],"last_affected":[],"package":"grpc","purl":"pkg:gem/grpc","source":"GHSA-p25m-jpj4-qcrr"},{"ecosystem":"RubyGems","fixed":["1.54.3"],"introduced":["1.54.0"],"last_affected":[],"package":"grpc","purl":null,"source":"GHSA-p25m-jpj4-qcrr"},{"ecosystem":"RubyGems","fixed":["1.54.3"],"introduced":["1.54.0"],"last_affected":[],"package":"grpc","purl":"pkg:gem/grpc","source":"GHSA-p25m-jpj4-qcrr"},{"ecosystem":"RubyGems","fixed":["1.55.3"],"introduced":["1.55.0"],"last_affected":[],"package":"grpc","purl":null,"source":"GHSA-p25m-jpj4-qcrr"},{"ecosystem":"RubyGems","fixed":["1.55.3"],"introduced":["1.55.0"],"last_affected":[],"package":"grpc","purl":"pkg:gem/grpc","source":"GHSA-p25m-jpj4-qcrr"},{"ecosystem":"RubyGems","fixed":["1.56.2"],"introduced":["1.56.0"],"last_affected":[],"package":"grpc","purl":null,"source":"GHSA-p25m-jpj4-qcrr"},{"ecosystem":"RubyGems","fixed":["1.56.2"],"introduced":["1.56.0"],"last_affected":[],"package":"grpc","purl":"pkg:gem/grpc","source":"GHSA-p25m-jpj4-qcrr"}],"prev":{"headline":"This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.","id":"CVE-2023-4784"},"products":["gRPC"],"published":"2023-09-13","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2017-9431","kev_date_added":null,"published":"2017-06-05"},{"cvss_score":9.8,"headline":"Use after free in n/a","id":"CVE-2017-8359","kev_date_added":null,"published":"2017-04-30"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2017-7860","kev_date_added":null,"published":"2017-04-14"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2017-7861","kev_date_added":null,"published":"2017-04-14"},{"cvss_score":9.1,"headline":"gRPC-Go has an authorization bypass via missing leading slash in :path","id":"CVE-2026-33186","kev_date_added":null,"published":"2026-03-20"},{"cvss_score":7.5,"headline":"Denial-of-Service in gRPC","id":"CVE-2023-33953","kev_date_added":null,"published":"2023-08-09"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-01-12","vendors":["Google"]},"summary":"An attacker can cause a denial of service in gRPC Core on POSIX platforms by initiating numerous connections due to lack of error handling.","url":"https://insights.sbomify.com/CVE-2023-4785/"}