{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-15389 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-15389 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-15389 is a high-severity authentication bypass vulnerability in Sesame Time, published on 14 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-2026-15389 and fix it if it is affected.\n\nWhat it is: CVE-2026-15389 is a high-severity authentication bypass vulnerability in Sesame Time, published on 14 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-2026-15389 in the wild and no public exploit code.\n\nAffected product: Sesame Time. 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-2026-15389/ (Markdown: https://insights.sbomify.com/CVE-2026-15389/index.md)","id":"CVE-2026-15389","markdown":"https://insights.sbomify.com/CVE-2026-15389/index.md","name":"CVE-2026-15389","record":{"aliases":["GHSA-98qr-jpxv-vfp8"],"analysis":{"component_type":"web_application","fix_type":"no_fix_stated","impacts":["data_read","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Sesame Time web application","requires_auth":"none","summary":"Attackers can impersonate users and access confidential data by exploiting inadequate session validation in Sesame Time.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"INCIBE","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key"}],"description":"A vulnerability relating to insufficient access control has been identified in the session management of the Sesame Time web application and its REST v3 API. The flaw lies in the fact that the system uses the session identifier (USID) as the sole validation mechanism, without verifying whether that identifier legitimately belongs to the user making the request. As a result, an attacker who obtains a valid USID can impersonate a victim’s session and access their confidential information, including emails, user IDs, roles and corporate data. This vulnerability is exacerbated by poor session lifecycle management: new logins generate additional USIDs without revoking the previous ones, allowing multiple active sessions to coexist and thereby expanding the attack surface.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Inadequate access control in Sesame Time session management","id":"CVE-2026-15389","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Out-of-bounds write in Das U-Boot","id":"CVE-2026-15390"},"packages":[],"prev":{"headline":"Cookie Consent \u003c 0.0.10 - Subscriber+ Consent Settings Update and Consent Log Disclosure","id":"CVE-2026-15388"},"products":["Sesame Time"],"published":"2026-07-14","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":"2026-07-14","vendors":["Sesame Time"]},"summary":"Attackers can impersonate users and access confidential data by exploiting inadequate session validation in Sesame Time.","url":"https://insights.sbomify.com/CVE-2026-15389/"}