{"answers":{"affected":"1 open source package ship an affected version, including argo-cd. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-26921 in the wild and no public exploit code.","fix":"Upgrade argo-cd to a fixed version for your release line: 1.7.12 or 1.8.4.","what":"CVE-2021-26921 is a medium-severity authentication bypass vulnerability in Argoproj Argo Cd, published on 9 Feb 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-2021-26921 and fix it if it is affected.\n\nWhat it is: CVE-2021-26921 is a medium-severity authentication bypass vulnerability in Argoproj Argo Cd, published on 9 Feb 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-2021-26921 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- argo-cd (Bitnami): affected all versions; fixed in 1.7.12, 1.8.4\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-2021-26921/ (Markdown: https://insights.sbomify.com/CVE-2021-26921/index.md)","id":"CVE-2021-26921","markdown":"https://insights.sbomify.com/CVE-2021-26921/index.md","name":"CVE-2021-26921","record":{"aliases":["BIT-argo-cd-2021-26921","GHSA-9h6w-j7w4-jr52"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Argo CD","requires_auth":"none","summary":"Disabled user accounts in Argo CD retain valid session tokens, allowing unauthorized access to the system.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"argo_cd","vendor":"argoproj"}],"cvss":{"score":6.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-613","name":"DEPRECATED: Insufficient Session Expiration"}],"description":"In util/session/sessionmanager.go in Argo CD before 1.8.4, tokens continue to work even when the user account is disabled.","ecosystems":["Bitnami"],"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":"Auth bypass in n/a","id":"CVE-2021-26921","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"argoproj:argo_cd","products":["argoproj:argo_cd"],"type":"auth_bypass","year":"2021"},"n_packages":1,"n_references":3,"next":{"headline":"Information disclosure in n/a","id":"CVE-2021-26923"},"packages":[{"ecosystem":"Bitnami","fixed":["1.7.12","1.8.4"],"introduced":["0","1.8.0"],"last_affected":[],"package":"argo-cd","purl":"pkg:bitnami/argo-cd","source":"BIT-argo-cd-2021-26921"}],"prev":{"headline":"Apache Druid: The HTTP inputSource allows authenticated users to read data from other sources than intended","id":"CVE-2021-26920"},"products":["n/a"],"published":"2021-02-09","related":[{"cvss_score":10,"headline":"Argo CD: Project API Token Exposes Repository Credentials","id":"CVE-2025-55190","kev_date_added":null,"published":"2025-09-04"},{"cvss_score":10,"headline":"Argo CD will blindly trust JWT claims if anonymous access is enabled","id":"CVE-2022-29165","kev_date_added":null,"published":"2022-05-20"},{"cvss_score":9.9,"headline":"Cluster secret might leak in cluster details page in Argo CD","id":"CVE-2023-40029","kev_date_added":null,"published":"2023-09-07"},{"cvss_score":9.9,"headline":"Improper access control allows admin privilege escalation in Argo CD","id":"CVE-2022-24768","kev_date_added":null,"published":"2022-03-23"},{"cvss_score":9.8,"headline":"Argo CD vulnerable to Bypassing of Brute Force Protection via Application Crash and In-Memory Data Loss","id":"CVE-2024-21652","kev_date_added":null,"published":"2024-03-18"},{"cvss_score":9.6,"headline":"ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction","id":"CVE-2026-42880","kev_date_added":null,"published":"2026-05-07"},{"cvss_score":9.1,"headline":"Argo CD allows cross-site scripting on repositories page","id":"CVE-2025-47933","kev_date_added":null,"published":"2025-05-29"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Disabled user accounts in Argo CD retain valid session tokens, allowing unauthorized access to the system.","url":"https://insights.sbomify.com/CVE-2021-26921/"}