{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-63089 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-63089 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-63089 is a critical vulnerability in wg-easy, published on 16 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-2026-63089 and fix it if it is affected.\n\nWhat it is: CVE-2026-63089 is a critical vulnerability in wg-easy, published on 16 Jul 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-2026-63089 in the wild and no public exploit code.\n\nAffected product: wg-easy. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-63089/ (Markdown: https://insights.sbomify.com/CVE-2026-63089/index.md)","id":"CVE-2026-63089","markdown":"https://insights.sbomify.com/CVE-2026-63089/index.md","name":"CVE-2026-63089","record":{"aliases":["GHSA-m894-wgpg-hwpv"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["data_read","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"WireGuard VPN server","requires_auth":"none","summary":"Weak token generation allows attackers to brute-force one-time links and steal WireGuard peer credentials, enabling VPN impersonation.","user_interaction":"not_required","vuln_class":"weak_cryptography"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":9,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-613","name":"DEPRECATED: Insufficient Session Expiration"},{"id":"CWE-338","name":"Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)"}],"description":"WireGuard Easy through 15.3.0, fixed in commit 66b292b, contains a cryptographically weak one-time link token generation vulnerability that allows unauthenticated network attackers to recover WireGuard peer credentials by brute-forcing a keyspace of at most 1000 candidate tokens per client ID, as the token is computed using CRC32 over a random value constrained to 0-999. Attackers can enumerate candidate tokens against the unauthenticated /cnf/:oneTimeLink route, which lacks rate limiting and does not validate token expiration, to obtain a peer's PrivateKey and PresharedKey and impersonate that peer on the VPN network.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"WireGuard Easy Weak Token Generation Information Disclosure via OTL Route","id":"CVE-2026-63089","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"weak_cryptography","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"ProFTPD mod_sftp Heap Buffer Overflow via SFTP Packet Reassembly","id":"CVE-2026-63090"},"packages":[],"prev":{"headline":"stoatchat \u003c 0.14.0 SSRF via DNS-based IP Blocklist Bypass","id":"CVE-2026-63088"},"products":["wg-easy"],"published":"2026-07-16","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-07-18","vendors":["wg-easy"]},"summary":"Weak token generation allows attackers to brute-force one-time links and steal WireGuard peer credentials, enabling VPN impersonation.","url":"https://insights.sbomify.com/CVE-2026-63089/"}