{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-39924 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-39924 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-39924 is a high-severity authentication bypass vulnerability in Flarum Framework, published on 5 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-39924 and fix it if it is affected.\n\nWhat it is: CVE-2026-39924 is a high-severity authentication bypass vulnerability in Flarum Framework, published on 5 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-39924 in the wild and no public exploit code.\n\nAffected product: Flarum Framework. 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-2026-39924/ (Markdown: https://insights.sbomify.com/CVE-2026-39924/index.md)","id":"CVE-2026-39924","markdown":"https://insights.sbomify.com/CVE-2026-39924/index.md","name":"CVE-2026-39924","record":{"aliases":["GHSA-4x2h-wcjq-p974"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Flarum forum software","requires_auth":"low_privilege","summary":"Attackers retain account access after password changes because session tokens are not revoked, allowing persistent unauthorized access to user accounts.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":7.6,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-613","name":"DEPRECATED: Insufficient Session Expiration"}],"description":"Flarum before 1.8.16 contains an improper session invalidation vulnerability that allows attackers who hold a valid session token to retain full account access after a victim changes their password, because the access_tokens table is never cleared on password change events. The TokensClearer::clearPasswordTokens() function only removes rows from the password_tokens table while leaving all active session cookies and API bearer tokens intact, including long-lived RememberAccessToken entries, and administrator-forced password resets via the user update endpoint are equally ineffective at revoking attacker-held sessions.","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":"Flarum \u003c 1.8.16 Session Persistence via Improper Access Token Revocation","id":"CVE-2026-39924","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.","id":"CVE-2026-39925"},"packages":[],"prev":{"headline":"Flarum \u003c 1.8.16 Password Reset Token Expiry Bypass via POST /reset","id":"CVE-2026-39923"},"products":["Flarum Framework"],"published":"2026-08-05","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-14","vendors":["Flarum"]},"summary":"Attackers retain account access after password changes because session tokens are not revoked, allowing persistent unauthorized access to user accounts.","url":"https://insights.sbomify.com/CVE-2026-39924/"}