{"answers":{"affected":"3 open source packages ship an affected version, including github.com/juev/nebula-mesh.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48058 exists.","fix":"Upgrade github.com/juev/nebula-mesh to 0.3.2 or later.","what":"CVE-2026-48058 is a medium-severity vulnerability in juev nebula-mesh, published on 28 Jul 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-2026-48058 and fix it if it is affected.\n\nWhat it is: CVE-2026-48058 is a medium-severity vulnerability in juev nebula-mesh, published on 28 Jul 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-2026-48058 exists.\n\nAffected packages and fixed versions:\n- github.com/juev/nebula-mesh (Go): affected all versions; fixed in 0.3.2\n- github.com/juev/nebula-mesh (Go): affected all versions; fixed in 0.3.2\n- github.com/juev/nebula-mesh (Go): affected all versions; fixed in 0.3.2\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-2026-48058/ (Markdown: https://insights.sbomify.com/CVE-2026-48058/index.md)","id":"CVE-2026-48058","markdown":"https://insights.sbomify.com/CVE-2026-48058/index.md","name":"CVE-2026-48058","record":{"aliases":["GHSA-rqfj-vv8r-xhqc","GO-2026-5635"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Nebula mesh control plane","requires_auth":"none","summary":"Attackers can steal session cookies via plaintext requests because the Secure attribute is missing, potentially leading to account takeover.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":4.6,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U","version":"4.0"},"cwes":[{"id":"CWE-614","name":"Sensitive Cookie in HTTPS Session Without 'Secure' Attribute"}],"description":"nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.2, internal/web/session.go and internal/web/oidc.go set HttpOnly and SameSite=Lax on every cookie but never Secure. A single plaintext request to the origin (operator on a LAN, mistyped URL, HTTP→HTTPS not strictly enforced, reverse proxy misconfiguration) discloses the session. This issue has been patched in version 0.3.2.","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":"nebula-mesh: Session and OIDC state cookies lack the Secure attribute","id":"CVE-2026-48058","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"Netty HAProxy: Unbalanced Reference Count in Nested PP2_TYPE_SSL TLV Parsing Leads to Memory Exhaustion","id":"CVE-2026-48059"},"packages":[{"ecosystem":"Go","fixed":["0.3.2"],"introduced":["0"],"last_affected":[],"package":"github.com/juev/nebula-mesh","purl":null,"source":"GHSA-rqfj-vv8r-xhqc"},{"ecosystem":"Go","fixed":["0.3.2"],"introduced":["0"],"last_affected":[],"package":"github.com/juev/nebula-mesh","purl":"pkg:golang/github.com/juev/nebula-mesh","source":"GHSA-rqfj-vv8r-xhqc"},{"ecosystem":"Go","fixed":["0.3.2"],"introduced":["0"],"last_affected":[],"package":"github.com/juev/nebula-mesh","purl":"pkg:golang/github.com/juev/nebula-mesh","source":"GO-2026-5635"}],"prev":{"headline":"Streambert Vulnerable to Arbitrary Binary Execution via Downloader IPC Handler","id":"CVE-2026-48056"},"products":["nebula-mesh"],"published":"2026-07-28","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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-28","vendors":["juev"]},"summary":"Attackers can steal session cookies via plaintext requests because the Secure attribute is missing, potentially leading to account takeover.","url":"https://insights.sbomify.com/CVE-2026-48058/"}