{"answers":{"affected":"5 open source packages ship an affected version, including github.com/cloudreve/Cloudreve/v4, github.com/cloudreve/Cloudreve and github.com/cloudreve/Cloudreve/v3.","exploited":"There is no known exploitation of CVE-2026-79913 in the wild and no public exploit code.","fix":"Upgrade github.com/cloudreve/Cloudreve/v4 to 4.0.0-20260715072853-1c5cad6dec7e or later.","what":"CVE-2026-79913 is a medium-severity server-side request forgery vulnerability in cloudreve, published on 22 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-79913 and fix it if it is affected.\n\nWhat it is: CVE-2026-79913 is a medium-severity server-side request forgery vulnerability in cloudreve, published on 22 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-79913 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/cloudreve/Cloudreve/v4 (Go): affected all versions; fixed in 4.0.0-20260715072853-1c5cad6dec7e\n- github.com/cloudreve/Cloudreve/v4 (Go): affected all versions; fixed in 4.0.0-20260715072853-1c5cad6dec7e\n- github.com/cloudreve/Cloudreve/v4 (Go): affected all versions; fixed in 4.0.0-20260715072853-1c5cad6dec7e\n- github.com/cloudreve/Cloudreve (Go): affected all versions; no fix listed\n- github.com/cloudreve/Cloudreve/v3 (Go): affected all versions; no fix listed\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-2026-79913/ (Markdown: https://insights.sbomify.com/CVE-2026-79913/index.md)","id":"CVE-2026-79913","markdown":"https://insights.sbomify.com/CVE-2026-79913/index.md","name":"CVE-2026-79913","record":{"aliases":["GHSA-jvh5-97xg-v99f","GO-2026-6572"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Cloudreve file manager","requires_auth":"low_privilege","summary":"Authenticated users can bypass SSRF protections using IPv6 transition wrappers to access internal services and cloud metadata credentials.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"},{"id":"CWE-697","name":"Incorrect Comparison"}],"description":"Cloudreve is a self-hosted file management and sharing system. Prior to 4.18.0, the ValidateExternalURL server-side request forgery guard in pkg/request/ssrf.go passes resolved addresses to checkIP without decoding NAT64, IPv4-compatible, and 6to4 IPv4-in-IPv6 transition forms. An authenticated user with remote-download access can provide SrcUri through RemoteDownloadTask.createDownloadTask so a wrapper embedding a loopback, private, link-local, or cloud metadata IPv4 address is classified as public and fetched, exposing internal service responses and cloud instance credentials. IPv4-mapped IPv6 addresses remain blocked because Go converts that form with net.IP.To4. This issue is fixed in version 4.18.0.","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":"Cloudreve: SSRF guard bypass: checkIP does not decode IPv6-transition wrappers (NAT64, IPv4-compatible, 6to4) reaching internal and cloud-metadata addresses","id":"CVE-2026-79913","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"ssrf","year":"2026"},"n_packages":5,"n_references":3,"next":{"headline":"MaxKB AWS Bedrock model credential injection leads to remote code execution","id":"CVE-2026-79916"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/cloudreve/Cloudreve","purl":"pkg:golang/github.com/cloudreve/Cloudreve","source":"GO-2026-6572"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/cloudreve/Cloudreve/v3","purl":"pkg:golang/github.com/cloudreve/Cloudreve/v3","source":"GO-2026-6572"},{"ecosystem":"Go","fixed":["4.0.0-20260715072853-1c5cad6dec7e"],"introduced":["0"],"last_affected":[],"package":"github.com/cloudreve/Cloudreve/v4","purl":null,"source":"GHSA-jvh5-97xg-v99f"},{"ecosystem":"Go","fixed":["4.0.0-20260715072853-1c5cad6dec7e"],"introduced":["0"],"last_affected":[],"package":"github.com/cloudreve/Cloudreve/v4","purl":"pkg:golang/github.com/cloudreve/Cloudreve/v4","source":"GHSA-jvh5-97xg-v99f"},{"ecosystem":"Go","fixed":["4.0.0-20260715072853-1c5cad6dec7e"],"introduced":["0"],"last_affected":[],"package":"github.com/cloudreve/Cloudreve/v4","purl":"pkg:golang/github.com/cloudreve/Cloudreve/v4","source":"GO-2026-6572"}],"prev":{"headline":"TOTOLINK N600R cstecgi.cgi getCurrentTime command injection","id":"CVE-2026-79912"},"products":["cloudreve"],"published":"2026-09-22","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-22","vendors":["cloudreve"]},"summary":"Authenticated users can bypass SSRF protections using IPv6 transition wrappers to access internal services and cloud metadata credentials.","url":"https://insights.sbomify.com/CVE-2026-79913/"}