{"answers":{"affected":"3 open source packages ship an affected version, including d7y.io/dragonfly/v2.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54637 exists.","fix":"Upgrade d7y.io/dragonfly/v2 to 2.4.4-rc.3 or later.","what":"CVE-2026-54637 is a medium-severity server-side request forgery vulnerability in dragonflyoss dragonfly, published on 15 Sep 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-2026-54637 and fix it if it is affected.\n\nWhat it is: CVE-2026-54637 is a medium-severity server-side request forgery vulnerability in dragonflyoss dragonfly, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54637 exists.\n\nAffected packages and fixed versions:\n- d7y.io/dragonfly/v2 (Go): affected all versions; fixed in 2.4.4-rc.3\n- d7y.io/dragonfly/v2 (Go): affected all versions; fixed in 2.4.4-rc.3\n- d7y.io/dragonfly/v2 (Go): affected all versions; fixed in 2.4.4-rc.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-2026-54637/ (Markdown: https://insights.sbomify.com/CVE-2026-54637/index.md)","id":"CVE-2026-54637","markdown":"https://insights.sbomify.com/CVE-2026-54637/index.md","name":"CVE-2026-54637","record":{"aliases":["CVE-2026-54709","GHSA-chwm-m7g7-685g","GO-2026-5910"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"P2P file distribution system","requires_auth":"none","summary":"Remote attackers can exploit unauthenticated gRPC endpoints to perform Server-Side Request Forgery, probing internal services and retrieving limited response data.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":5.5,"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/E:P","version":"4.0"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"Dragonfly is an open source P2P-based file distribution and image acceleration system. Prior to 2.4.4-rc.3, the scheduler's default unauthenticated v1 gRPC flow accepts attacker-controlled PeerHost.Ip and PeerHost.DownPort values through RegisterPeerTask and ReportPeerResult, storeHost copies those values into resource.Host, and handlePeerSuccess invokes Peer.DownloadTinyFile() for a TINY task. DownloadTinyFile() in scheduler/resource/standard/peer.go builds an HTTP GET request from the supplied address without destination validation, allowing a remote attacker to probe loopback, link-local, and private services and place up to TinyFileSize, 128 bytes, of a response in Task.DirectPiece for later retrieval. PeerHost.DownPort is restricted to ports 1024 through 65534, and the issue provides read SSRF rather than remote code execution. The remediation blocks loopback and link-local targets, while RFC1918 destinations remain reachable because IsGlobalUnicast accepts private ranges. This issue is fixed in 2.4.4-rc.3.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Dragonfly scheduler v1 gRPC unauthenticated SSRF via attacker-controlled PeerHost in DownloadTinyFile","id":"CVE-2026-54637","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"ssrf","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"td has pre-auth denial of service via unbounded memory allocation in proto.UnencryptedMessage.Decode","id":"CVE-2026-54638"},"packages":[{"ecosystem":"Go","fixed":["2.4.4-rc.3"],"introduced":["0"],"last_affected":[],"package":"d7y.io/dragonfly/v2","purl":null,"source":"GHSA-chwm-m7g7-685g"},{"ecosystem":"Go","fixed":["2.4.4-rc.3"],"introduced":["0"],"last_affected":[],"package":"d7y.io/dragonfly/v2","purl":"pkg:golang/d7y.io/dragonfly/v2","source":"GHSA-chwm-m7g7-685g"},{"ecosystem":"Go","fixed":["2.4.4-rc.3"],"introduced":["0"],"last_affected":[],"package":"d7y.io/dragonfly/v2","purl":"pkg:golang/d7y.io/dragonfly/v2","source":"GO-2026-5910"}],"prev":{"headline":"Dokku: OS Command Injection via app.json managed Cron","id":"CVE-2026-54636"},"products":["dragonfly"],"published":"2026-09-15","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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-16","vendors":["dragonflyoss"]},"summary":"Remote attackers can exploit unauthenticated gRPC endpoints to perform Server-Side Request Forgery, probing internal services and retrieving limited response data.","url":"https://insights.sbomify.com/CVE-2026-54637/"}