{"answers":{"affected":"5 open source packages ship an affected version, including github.com/envoyproxy/envoy and envoy. It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-54588 in the wild and no public exploit code.","fix":"Upgrade github.com/envoyproxy/envoy to a fixed version for your release line: 1.34.5 or 1.35.1.","what":"CVE-2025-54588 is a high-severity use after free vulnerability in Envoyproxy Envoy, published on 2 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-54588 and fix it if it is affected.\n\nWhat it is: CVE-2025-54588 is a high-severity use after free vulnerability in Envoyproxy Envoy, published on 2 Sep 2025. 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-2025-54588 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/envoyproxy/envoy (Go): affected from 1.34.0; fixed in 1.34.5\n- github.com/envoyproxy/envoy (Go): affected from 1.34.0; fixed in 1.34.5\n- github.com/envoyproxy/envoy (Go): affected from 1.35.0; fixed in 1.35.1\n- github.com/envoyproxy/envoy (Go): affected from 1.35.0; fixed in 1.35.1\n- envoy (Bitnami): affected from 1.34.0; fixed in 1.34.5, 1.35.1\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-2025-54588/ (Markdown: https://insights.sbomify.com/CVE-2025-54588/index.md)","id":"CVE-2025-54588","markdown":"https://insights.sbomify.com/CVE-2025-54588/index.md","name":"CVE-2025-54588","record":{"aliases":["BIT-envoy-2025-54588","GHSA-g9vw-6pvx-7gmw"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Envoy proxy","requires_auth":"none","summary":"A race condition in Envoy's Dynamic Forward Proxy causes use-after-free and crashes, requiring specific runtime flags and header modifications to exploit.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"envoy","vendor":"envoyproxy"}],"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-416","name":"Use After Free"}],"description":"Envoy is an open source L7 proxy and communication bus designed for large modern service oriented architectures. Versions 1.34.0 through 1.34.4 and 1.35.0 contain a use-after-free (UAF) vulnerability in the DNS cache, causing abnormal process termination. The vulnerability is in Envoy's Dynamic Forward Proxy implementation, occurring when a completion callback for a DNS resolution triggers new DNS resolutions or removes existing pending resolutions. This condition may occur when the following conditions are met: dynamic Forwarding Filter is enabled, the `envoy.reloadable_features.dfp_cluster_resolves_hosts` runtime flag is enabled, and the Host header is modified between the Dynamic Forwarding Filter and Router filters. This issue is resolved in versions 1.34.5 and 1.35.1. To work around this issue, set the envoy.reloadable_features.dfp_cluster_resolves_hosts runtime flag to false.","ecosystems":["Bitnami","Go"],"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":"Envoy: Race condition in Dynamic Forward Proxy leads to use-after-free and segmentation faults","id":"CVE-2025-54588","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"envoyproxy:envoy","products":["envoyproxy:envoy"],"type":"use_after_free","year":"2025"},"n_packages":5,"n_references":3,"next":{"headline":"copyparty Reflected XSS via Filter Parameter","id":"CVE-2025-54589"},"packages":[{"ecosystem":"Bitnami","fixed":["1.34.5","1.35.1"],"introduced":["1.34.0","1.35.0"],"last_affected":[],"package":"envoy","purl":"pkg:bitnami/envoy","source":"BIT-envoy-2025-54588"},{"ecosystem":"Go","fixed":["1.34.5"],"introduced":["1.34.0"],"last_affected":[],"package":"github.com/envoyproxy/envoy","purl":null,"source":"GHSA-g9vw-6pvx-7gmw"},{"ecosystem":"Go","fixed":["1.34.5"],"introduced":["1.34.0"],"last_affected":[],"package":"github.com/envoyproxy/envoy","purl":"pkg:golang/github.com/envoyproxy/envoy","source":"GHSA-g9vw-6pvx-7gmw"},{"ecosystem":"Go","fixed":["1.35.1"],"introduced":["1.35.0"],"last_affected":[],"package":"github.com/envoyproxy/envoy","purl":null,"source":"GHSA-g9vw-6pvx-7gmw"},{"ecosystem":"Go","fixed":["1.35.1"],"introduced":["1.35.0"],"last_affected":[],"package":"github.com/envoyproxy/envoy","purl":"pkg:golang/github.com/envoyproxy/envoy","source":"GHSA-g9vw-6pvx-7gmw"}],"prev":{"headline":"GitProxy is susceptible to a hidden commits injection attack","id":"CVE-2025-54586"},"products":["envoy"],"published":"2025-09-02","related":[{"cvss_score":10,"headline":"Trivial authentication bypass in Envoy","id":"CVE-2022-29226","kev_date_added":null,"published":"2022-06-09"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2019-18801","kev_date_added":null,"published":"2019-12-13"},{"cvss_score":9.8,"headline":"Security feature bypass in n/a","id":"CVE-2019-18802","kev_date_added":null,"published":"2019-12-13"},{"cvss_score":8.8,"headline":"Information disclosure in n/a","id":"CVE-2020-35470","kev_date_added":null,"published":"2020-12-15"},{"cvss_score":8.6,"headline":"Envoy ext auth can be bypassed when Proxy protocol filter sets invalid UTF-8 metadata","id":"CVE-2024-23324","kev_date_added":null,"published":"2024-02-09"},{"cvss_score":8.6,"headline":"Envoy vulnerable to OAuth2 credentials exploit with permanent validity","id":"CVE-2023-35941","kev_date_added":null,"published":"2023-07-25"},{"cvss_score":8.6,"headline":"Incorrect handling of H2 GOAWAY + SETTINGS frames","id":"CVE-2021-39162","kev_date_added":null,"published":"2021-09-09"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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":"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":"2025-09-03","vendors":["envoyproxy"]},"summary":"A race condition in Envoy's Dynamic Forward Proxy causes use-after-free and crashes, requiring specific runtime flags and header modifications to exploit.","url":"https://insights.sbomify.com/CVE-2025-54588/"}