{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-78135 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-78135 is a medium-severity authentication bypass 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-2026-78135 and fix it if it is affected.\n\nWhat it is: CVE-2026-78135 is a medium-severity authentication bypass 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-2026-78135 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-2026-78135/ (Markdown: https://insights.sbomify.com/CVE-2026-78135/index.md)","id":"CVE-2026-78135","markdown":"https://insights.sbomify.com/CVE-2026-78135/index.md","name":"CVE-2026-78135","record":{"aliases":["AZL-100049","DEBIAN-CVE-2026-78135","GHSA-937c-856w-w843","MINI-6gqf-cxmc-5jfv","UBUNTU-CVE-2026-78135"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"IPsec VPN software","requires_auth":"none","summary":"Attackers can bypass authentication in strongSwan's IKEv2 state machine by mishandling CREATE_CHILD_SA requests, compromising VPN security.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"strongswan","vendor":"strongswan"}],"cvss":{"score":5.6,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-841","name":"Improper Enforcement of Behavioral Workflow"}],"description":"libcharon in strongSwan 5.9.7 through 6.0.7 mishandles behavioral workflow in the IKEv2 state machine. Because CREATE_CHILD_SA requests are mishandled, there can be an authentication bypass.","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":"Auth bypass in strongSwan","id":"CVE-2026-78135","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Code injection in CHIRP","id":"CVE-2026-78136"},"packages":[],"prev":{"headline":"Auth bypass in strongSwan","id":"CVE-2026-78134"},"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":"Attackers can bypass authentication in strongSwan's IKEv2 state machine by mishandling CREATE_CHILD_SA requests, compromising VPN security.","url":"https://insights.sbomify.com/CVE-2026-78135/"}