{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-33746 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-33746 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-33746 is a critical authentication bypass vulnerability in ConvoyPanel panel, published on 2 Apr 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-2026-33746 and fix it if it is affected.\n\nWhat it is: CVE-2026-33746 is a critical authentication bypass vulnerability in ConvoyPanel panel, published on 2 Apr 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-2026-33746 in the wild and no public exploit code.\n\nAffected product: ConvoyPanel panel. 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-2026-33746/ (Markdown: https://insights.sbomify.com/CVE-2026-33746/index.md)","id":"CVE-2026-33746","markdown":"https://insights.sbomify.com/CVE-2026-33746/index.md","name":"CVE-2026-33746","record":{"aliases":["GHSA-92pg-3w49-4w5x"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["account_takeover","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"KVM server management panel","requires_auth":"none","summary":"Attackers can bypass JWT signature verification to forge tokens and authenticate as any user in the Convoy KVM management panel.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"convoy","vendor":"convoypanel"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"},{"id":"CWE-287","name":"Improper Authentication"}],"description":"Convoy is a KVM server management panel for hosting businesses. From version 3.9.0-beta to before version 4.5.1, the JWTService::decode() method did not verify the cryptographic signature of JWT tokens. While the method configured a symmetric HMAC-SHA256 signer via lcobucci/jwt, it only validated time-based claims (exp, nbf, iat) using the StrictValidAt constraint. The SignedWith constraint was not included in the validation step. This means an attacker could forge or tamper with JWT token payloads — such as modifying the user_uuid claim — and the token would be accepted as valid, as long as the time-based claims were satisfied. This directly impacts the SSO authentication flow (LoginController::authorizeToken), allowing an attacker to authenticate as any user by crafting a token with an arbitrary user_uuid. This issue has been patched in version 4.5.1.","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":"Convoy: JWT Signature Verification Bypass Allows Authentication as Arbitrary Users","id":"CVE-2026-33746","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"BuildKit vulnerable to malicious frontend causing file escape outside of storage root","id":"CVE-2026-33747"},"packages":[],"prev":{"headline":"cpp-httplib Client Leaks Authentication Credentials to Untrusted Hosts on Cross-Origin HTTP Redirect","id":"CVE-2026-33745"},"products":["panel"],"published":"2026-04-02","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"total"},"state":"PUBLISHED","updated":"2026-04-02","vendors":["ConvoyPanel"]},"summary":"Attackers can bypass JWT signature verification to forge tokens and authenticate as any user in the Convoy KVM management panel.","url":"https://insights.sbomify.com/CVE-2026-33746/"}