{"answers":{"affected":"3 open source packages ship an affected version, including github.com/lin-snow/ech0.","exploited":"There is no known exploitation of CVE-2026-79668 in the wild and no public exploit code.","fix":"Upgrade github.com/lin-snow/ech0 to 1.4.8-0.20260503040728-a7e8b8e84bd1 or later.","what":"CVE-2026-79668 is a medium-severity missing authorization vulnerability in lin-snow Ech0, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-79668 and fix it if it is affected.\n\nWhat it is: CVE-2026-79668 is a medium-severity missing authorization vulnerability in lin-snow Ech0, published on 25 Aug 2026. 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-2026-79668 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/lin-snow/ech0 (Go): affected all versions; fixed in 1.4.8-0.20260503040728-a7e8b8e84bd1\n- github.com/lin-snow/ech0 (Go): affected all versions; fixed in 1.4.8-0.20260503040728-a7e8b8e84bd1\n- github.com/lin-snow/ech0 (Go): affected all versions; fixed in 1.4.8-0.20260503040728-a7e8b8e84bd1\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-2026-79668/ (Markdown: https://insights.sbomify.com/CVE-2026-79668/index.md)","id":"CVE-2026-79668","markdown":"https://insights.sbomify.com/CVE-2026-79668/index.md","name":"CVE-2026-79668","record":{"aliases":["GHSA-7v7f-8gw6-2q2x","GHSA-rgj7-vg8v-j4wr","GO-2026-5623"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Ech0 social platform","requires_auth":"none","summary":"Unauthenticated attackers can inflate engagement metrics on Ech0 by repeatedly calling the like endpoint without identity verification.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"}],"description":"Ech0 before 4.7.3 contains an authentication bypass vulnerability in the PUT /api/echo/like/:id endpoint that allows unauthenticated attackers to increment engagement metrics without identity verification or rate limiting. Attackers can send repeated requests to arbitrarily inflate the fav_count field for any known echo identifier, compromising the integrity of engagement metrics and social ranking systems.","ecosystems":["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":"Ech0 before 4.7.3 Unauthenticated Like Endpoint Metric Inflation","id":"CVE-2026-79668","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":3,"n_references":2,"next":{"headline":"Ech0 before 4.4.3 Missing Authorization on System Logs","id":"CVE-2026-79669"},"packages":[{"ecosystem":"Go","fixed":["1.4.8-0.20260503040728-a7e8b8e84bd1"],"introduced":["0"],"last_affected":[],"package":"github.com/lin-snow/ech0","purl":null,"source":"GHSA-rgj7-vg8v-j4wr"},{"ecosystem":"Go","fixed":["1.4.8-0.20260503040728-a7e8b8e84bd1"],"introduced":["0"],"last_affected":[],"package":"github.com/lin-snow/ech0","purl":"pkg:golang/github.com/lin-snow/ech0","source":"GHSA-rgj7-vg8v-j4wr"},{"ecosystem":"Go","fixed":["1.4.8-0.20260503040728-a7e8b8e84bd1"],"introduced":["0"],"last_affected":[],"package":"github.com/lin-snow/ech0","purl":"pkg:golang/github.com/lin-snow/ech0","source":"GO-2026-5623"}],"prev":{"headline":"Ech0 before 4.4.3 Authentication Bypass via Scope Enforcement","id":"CVE-2026-79667"},"products":["Ech0"],"published":"2026-08-25","related":[],"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":"Go Vulnerability Database","prefix":"GO"},{"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":"2026-08-26","vendors":["lin-snow"]},"summary":"Unauthenticated attackers can inflate engagement metrics on Ech0 by repeatedly calling the like endpoint without identity verification.","url":"https://insights.sbomify.com/CVE-2026-79668/"}