{"answers":{"affected":"3 open source packages ship an affected version, including github.com/tyktechnologies/tyk-identity-broker and github.com/TykTechnologies/tyk-identity-broker. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-23365 in the wild and no public exploit code.","fix":"Upgrade github.com/tyktechnologies/tyk-identity-broker to 1.1.1 or later.","what":"CVE-2021-23365 is a medium-severity authentication bypass vulnerability in github.com/TykTechnologies/tyk-identity-broker, published on 26 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-23365 and fix it if it is affected.\n\nWhat it is: CVE-2021-23365 is a medium-severity authentication bypass vulnerability in github.com/TykTechnologies/tyk-identity-broker, published on 26 Apr 2021. 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-2021-23365 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/tyktechnologies/tyk-identity-broker (Go): affected all versions; fixed in 1.1.1\n- github.com/tyktechnologies/tyk-identity-broker (Go): affected all versions; fixed in 1.1.1\n- github.com/TykTechnologies/tyk-identity-broker (Go): affected all versions; fixed in 1.1.1\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-2021-23365/ (Markdown: https://insights.sbomify.com/CVE-2021-23365/index.md)","id":"CVE-2021-23365","markdown":"https://insights.sbomify.com/CVE-2021-23365/index.md","name":"CVE-2021-23365","record":{"aliases":["GHSA-599h-8wpj-75xj","GO-2022-0906","SNYK-GOLANG-GITHUBCOMTYKTECHNOLOGIESTYKIDENTITYBROKER-1089720"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Go identity broker library","requires_auth":"none","summary":"Attackers can bypass SAML authentication in Tyk Identity Broker due to XML parser integrity issues, allowing unauthorized access.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"snyk","cpe":[{"product":"tyk-identity-broker","vendor":"tyk"}],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"The package github.com/tyktechnologies/tyk-identity-broker before 1.1.1 are vulnerable to Authentication Bypass via the Go XML parser which can cause SAML authentication bypass. This is because the XML parser doesn’t guarantee integrity in the XML round-trip (encoding/decoding XML data).","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":"Authentication Bypass","id":"CVE-2021-23365","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"auth_bypass","year":"2021"},"n_packages":3,"n_references":5,"next":{"headline":"Regular Expression Denial of Service (ReDoS)","id":"CVE-2021-23368"},"packages":[{"ecosystem":"Go","fixed":["1.1.1"],"introduced":["0"],"last_affected":[],"package":"github.com/TykTechnologies/tyk-identity-broker","purl":"pkg:golang/github.com/TykTechnologies/tyk-identity-broker","source":"GO-2022-0906"},{"ecosystem":"Go","fixed":["1.1.1"],"introduced":["0"],"last_affected":[],"package":"github.com/tyktechnologies/tyk-identity-broker","purl":null,"source":"GHSA-599h-8wpj-75xj"},{"ecosystem":"Go","fixed":["1.1.1"],"introduced":["0"],"last_affected":[],"package":"github.com/tyktechnologies/tyk-identity-broker","purl":"pkg:golang/github.com/tyktechnologies/tyk-identity-broker","source":"GHSA-599h-8wpj-75xj"}],"prev":{"headline":"Regular Expression Denial of Service (ReDoS)","id":"CVE-2021-23364"},"products":["github.com/TykTechnologies/tyk-identity-broker"],"published":"2021-04-26","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":"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-17","vendors":["n/a"]},"summary":"Attackers can bypass SAML authentication in Tyk Identity Broker due to XML parser integrity issues, allowing unauthorized access.","url":"https://insights.sbomify.com/CVE-2021-23365/"}