{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-43915 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-43915 is a medium-severity cross-site scripting vulnerability in coturn, published on 18 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-43915 and fix it if it is affected.\n\nWhat it is: CVE-2026-43915 is a medium-severity cross-site scripting vulnerability in coturn, published on 18 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-43915 in the wild and no public exploit code.\n\nAffected product: coturn. 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-2026-43915/ (Markdown: https://insights.sbomify.com/CVE-2026-43915/index.md)","id":"CVE-2026-43915","markdown":"https://insights.sbomify.com/CVE-2026-43915/index.md","name":"CVE-2026-43915","record":{"aliases":["DEBIAN-CVE-2026-43915","GHSA-xxf5-9vj2-g84j","UBUNTU-CVE-2026-43915"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"TURN/STUN server","requires_auth":"low_privilege","summary":"An attacker can inject malicious scripts into the Coturn web-admin interface via TURN usernames, potentially compromising admin sessions.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"coturn","vendor":"coturn_project"}],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Coturn is a free open source implementation of TURN and STUN Server. Versions prior to 4.11.0 contain a stored cross-site scripting (XSS) vulnerability in the web-admin HTTPS interface. An attacker who can create a TURN allocation with a crafted USERNAME value can inject HTML/JavaScript that executes when an authenticated web-admin user views the TURN session list. In configurations using anonymous TURN access (--no-auth), this may be exploitable without TURN credentials. In authenticated deployments, exploitation requires valid TURN credentials or control over a provisioned username. This issue has been fixed in version 4.11.0.","ecosystems":[],"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":"Coturn: Stored Cross-Site Scripting (XSS) in web-admin interface via TURN username","id":"CVE-2026-43915","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"pam_authnft: Heap buffer overflow in NETLINK_SOCK_DIAG reply walker","id":"CVE-2026-43916"},"packages":[],"prev":{"headline":"Vaultwarden: Brute-force protection bypass vulnerability","id":"CVE-2026-43914"},"products":["coturn"],"published":"2026-06-18","related":[{"cvss_score":9.1,"headline":"SQL injection in coTURN","id":"CVE-2018-4056","kev_date_added":null,"published":"2019-02-05"},{"cvss_score":8.1,"headline":"Coturn: Stack buffer overflow in decode_oauth_token_gcm()","id":"CVE-2026-43994","kev_date_added":null,"published":"2026-06-18"},{"cvss_score":7.7,"headline":"Server-side request forgery in coTURN","id":"CVE-2018-4058","kev_date_added":null,"published":"2019-03-21"},{"cvss_score":7.5,"headline":"Coturn: Misaligned Memory Access in coturn STUN Attribute Parser (Remote DoS on ARM64)","id":"CVE-2026-40613","kev_date_added":null,"published":"2026-04-21"},{"cvss_score":7.4,"headline":"Coturn: IPv4-mapped 127.0.0.1 bypasses default loopback peer protection","id":"CVE-2026-53450","kev_date_added":null,"published":"2026-07-10"},{"cvss_score":7.2,"headline":"Coturn: SQL Injection in HTTPS Admin Panel Delete Operations","id":"CVE-2026-53448","kev_date_added":null,"published":"2026-07-10"},{"cvss_score":7.2,"headline":"Coturn: IPv4-mapped IPv6 (::ffff:0:0/96) bypasses denied-peer-ip ACL","id":"CVE-2026-27624","kev_date_added":null,"published":"2026-02-25"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-18","vendors":["coturn"]},"summary":"An attacker can inject malicious scripts into the Coturn web-admin interface via TURN usernames, potentially compromising admin sessions.","url":"https://insights.sbomify.com/CVE-2026-43915/"}