{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-71968 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-71968 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-71968 is a high-severity use after free vulnerability in OP-TEE optee_os, published on 10 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-71968 and fix it if it is affected.\n\nWhat it is: CVE-2026-71968 is a high-severity use after free vulnerability in OP-TEE optee_os, published on 10 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-71968 in the wild and no public exploit code.\n\nAffected product: OP-TEE optee_os. 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-2026-71968/ (Markdown: https://insights.sbomify.com/CVE-2026-71968/index.md)","id":"CVE-2026-71968","markdown":"https://insights.sbomify.com/CVE-2026-71968/index.md","name":"CVE-2026-71968","record":{"aliases":["DEBIAN-CVE-2026-71968","GHSA-p84g-83m7-53p6","UBUNTU-CVE-2026-71968"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"OP-TEE OS","requires_auth":"high_privilege","summary":"Attackers with signed TA loading capabilities can corrupt secure-world kernel memory via a use-after-free in the TA loader, potentially leading to code execution or privilege escalation.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.4,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-416","name":"Use After Free"},{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"description":"OP-TEE OS through 4.10.0, fixed in commit 8794043, contains a use-after-free vulnerability in the Trusted Application loader that allows attackers with the ability to load a signed Trusted Application to corrupt secure-world kernel memory by setting the TA_FLAG_CONCURRENT flag in a user TA signed header. Attackers can cause two concurrent sessions to operate on the same shared context without locking, corrupting the uctx-\u003evm_info.regions list during memref parameter mapping and unmapping to free vm_region nodes still in use, resulting in a use-after-free in S-EL1 secure-world kernel memory.","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":"OP-TEE OS 4.10.0 Use-After-Free via Trusted Application Loader TA_FLAG_CONCURRENT","id":"CVE-2026-71968","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"OP-TEE OS 4.10.0 Buffer Underwrite via RSA NOPAD Encrypt/Decrypt Operations","id":"CVE-2026-71969"},"packages":[],"prev":{"headline":"OP-TEE OS 4.10.0 NULL Pointer Dereference DoS via Widevine PTA open_session","id":"CVE-2026-71967"},"products":["optee_os"],"published":"2026-08-10","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":"total"},"state":"PUBLISHED","updated":"2026-08-17","vendors":["OP-TEE"]},"summary":"Attackers with signed TA loading capabilities can corrupt secure-world kernel memory via a use-after-free in the TA loader, potentially leading to code execution or privilege escalation.","url":"https://insights.sbomify.com/CVE-2026-71968/"}