{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-71555 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-71555 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-71555 is a medium-severity vulnerability in THM-Health PILOS, published on 6 Aug 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-2026-71555 and fix it if it is affected.\n\nWhat it is: CVE-2026-71555 is a medium-severity vulnerability in THM-Health PILOS, published on 6 Aug 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-2026-71555 in the wild and no public exploit code.\n\nAffected product: THM-Health PILOS. 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-2026-71555/ (Markdown: https://insights.sbomify.com/CVE-2026-71555/index.md)","id":"CVE-2026-71555","markdown":"https://insights.sbomify.com/CVE-2026-71555/index.md","name":"CVE-2026-71555","record":{"aliases":["GHSA-j4wr-p8gh-xrw5"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["account_takeover","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"PILOS frontend","requires_auth":"low_privilege","summary":"Attackers can exploit reverse tabnabbing to redirect authenticated PILOS users to phishing pages by manipulating the original tab via window.opener.","user_interaction":"required","vuln_class":"open_redirect"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":4.1,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-1022","name":"Use of Web Link to Untrusted Target with window.opener Access"}],"description":"PILOS (Platform for Interactive Live-Online Seminars) is a frontend for BigBlueButton. From 2.1.0 until 4.14.1, PILOS does not send a Cross-Origin-Opener-Policy response header, so pages opened by PILOS via a link that opens a new browsing context (e.g., target=\"_blank\") retain a window.opener reference back to the originating PILOS tab. A malicious destination page reached this way can use window.opener to navigate or manipulate the original PILOS tab, a technique known as reverse tabnabbing, potentially redirecting an authenticated user to a phishing page that mimics PILOS. This issue is fixed in version 4.14.1.","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":"PILOS: Reverse tabnabbing in room description","id":"CVE-2026-71555","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"open_redirect","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"go-git: Worktree operations may follow symlinks","id":"CVE-2026-71556"},"packages":[],"prev":{"headline":"h2: Duplicate Host header could facilitate request smuggling","id":"CVE-2026-71554"},"products":["PILOS"],"published":"2026-08-06","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":"2026-08-07","vendors":["THM-Health"]},"summary":"Attackers can exploit reverse tabnabbing to redirect authenticated PILOS users to phishing pages by manipulating the original tab via window.opener.","url":"https://insights.sbomify.com/CVE-2026-71555/"}