{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-12413 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-12413 is a high-severity denial of service vulnerability in The Libreswan Project libreswan, published on 2 Jul 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-2026-12413 and fix it if it is affected.\n\nWhat it is: CVE-2026-12413 is a high-severity denial of service vulnerability in The Libreswan Project libreswan, published on 2 Jul 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-2026-12413 in the wild and no public exploit code.\n\nAffected product: The Libreswan Project libreswan. 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-2026-12413/ (Markdown: https://insights.sbomify.com/CVE-2026-12413/index.md)","id":"CVE-2026-12413","markdown":"https://insights.sbomify.com/CVE-2026-12413/index.md","name":"CVE-2026-12413","record":{"aliases":["AZL-91779","CLSA-2026-1784019530","CLSA-2026-1784075638","DEBIAN-CVE-2026-12413","GHSA-vj68-68x2-jwjq","UBUNTU-CVE-2026-12413"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"IPsec VPN daemon","requires_auth":"none","summary":"Remote attackers can crash the Libreswan pluto daemon by sending malformed IKEv2 fragments, causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"libreswan","cpe":[{"product":"libreswan","vendor":"libreswan"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-617","name":"Reachable Assertion"},{"id":"CWE-193","name":"Off-by-one Error"}],"description":"An invalidly formatted IKEv2 fragment causes the Libreswan pluto daemon to crash and restart. Continued exploitation would cause a denial of service. The function reassemble_v2_incoming_fragments() would ignore unknown outer payloads but still store these in a fixed size array msg_digest.digest[PAYLIMIT]. An off-by-one error in the assertion PASSERT(logger, md-\u003edigest_roof \u003c elemsof(md-\u003edigest)) causes the daemon to abort. No remote code execution is possible. Any configuration that allows IKEv2 connections that do not set fragmentation=no are vulnerable. IKEv1 is not affected.","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":"IKEv2 Denial of Service via malformed fragmentation","id":"CVE-2026-12413","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Invoice Generator \u003c= 1.0.0 - Unauthenticated Privilege Escalation via Account Takeover via 'user_id' Parameter","id":"CVE-2026-12415"},"packages":[],"prev":{"headline":"loading template...","id":"CVE-2026-12412"},"products":["libreswan"],"published":"2026-07-02","related":[{"cvss_score":9.3,"headline":"Race condition in n/a","id":"CVE-2013-7283","kev_date_added":null,"published":"2014-01-09"},{"cvss_score":7.5,"headline":"IKEv1 Denial of Service via RSA-SHA1 (PKCS#1 Version 1.5 Encrypted) authentication payload","id":"CVE-2026-50721","kev_date_added":null,"published":"2026-07-02"},{"cvss_score":7.5,"headline":"IKEv2 Denial of Service via RSA-SHA1 (PKCS#1 RSASSA-PKCS1-v1_5) authentication payload","id":"CVE-2026-50722","kev_date_added":null,"published":"2026-07-02"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2023-30570","kev_date_added":null,"published":"2023-05-28"},{"cvss_score":7.5,"headline":"Denial of service in libreswan","id":"CVE-2023-2295","kev_date_added":null,"published":"2023-05-17"},{"cvss_score":7.5,"headline":"Denial of service in libreswan","id":"CVE-2020-1763","kev_date_added":null,"published":"2020-05-12"}],"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-07","vendors":["The Libreswan Project"]},"summary":"Remote attackers can crash the Libreswan pluto daemon by sending malformed IKEv2 fragments, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2026-12413/"}