{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-78123 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-78123 is a medium-severity use after free vulnerability in strongSwan, published on 11 Sep 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-2026-78123 and fix it if it is affected.\n\nWhat it is: CVE-2026-78123 is a medium-severity use after free vulnerability in strongSwan, published on 11 Sep 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-2026-78123 in the wild and no public exploit code.\n\nAffected product: strongSwan. 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-2026-78123/ (Markdown: https://insights.sbomify.com/CVE-2026-78123/index.md)","id":"CVE-2026-78123","markdown":"https://insights.sbomify.com/CVE-2026-78123/index.md","name":"CVE-2026-78123","record":{"aliases":["AZL-100037","DEBIAN-CVE-2026-78123","GHSA-m7ff-3hm8-6qxh","MINI-85wq-4m7f-jm9h","UBUNTU-CVE-2026-78123"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"IPsec VPN software","requires_auth":"none","summary":"An attacker can trigger a use-after-free vulnerability in strongSwan's PKCS#7 parser, potentially causing a crash or executing arbitrary code.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"strongswan","vendor":"strongswan"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-825","name":"Expired Pointer Dereference"}],"description":"strongSwan 5.0.2 through 6.0.7 has an Expired Pointer Dereference in PKCS#7 parsing in the openssl plugin.","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":"Use after free in strongSwan","id":"CVE-2026-78123","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Denial of service in strongSwan","id":"CVE-2026-78124"},"packages":[],"prev":{"headline":"docker-socket-proxy through 0.5.0 Insufficient Access Control Granularity Exposes Container Filesystems","id":"CVE-2026-78122"},"products":["strongSwan"],"published":"2026-09-11","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2023-41913","kev_date_added":null,"published":"2023-12-07"},{"cvss_score":9.8,"headline":"Use after free in n/a","id":"CVE-2023-26463","kev_date_added":null,"published":"2023-04-14"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2015-3991","kev_date_added":null,"published":"2017-09-07"},{"cvss_score":7.7,"headline":"Auth bypass in strongSwan","id":"CVE-2022-4967","kev_date_added":null,"published":"2024-05-13"},{"cvss_score":7.5,"headline":"Null dereference in strongSwan","id":"CVE-2026-78130","kev_date_added":null,"published":"2026-09-11"},{"cvss_score":7.5,"headline":"Denial of service in strongSwan","id":"CVE-2026-78132","kev_date_added":null,"published":"2026-09-11"},{"cvss_score":7.5,"headline":"Use after free in strongSwan","id":"CVE-2026-78133","kev_date_added":null,"published":"2026-09-11"}],"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":"2026-09-15","vendors":["strongSwan"]},"summary":"An attacker can trigger a use-after-free vulnerability in strongSwan's PKCS#7 parser, potentially causing a crash or executing arbitrary code.","url":"https://insights.sbomify.com/CVE-2026-78123/"}