{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4046 exists.","fix":"Change a configuration setting.","what":"CVE-2026-4046 is a high-severity denial of service vulnerability in Gnu Glibc, published on 30 Mar 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-2026-4046 and fix it if it is affected.\n\nWhat it is: CVE-2026-4046 is a high-severity denial of service vulnerability in Gnu Glibc, published on 30 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4046 exists.\n\nAffected product: Gnu Glibc. 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-2026-4046/ (Markdown: https://insights.sbomify.com/CVE-2026-4046/index.md)","id":"CVE-2026-4046","markdown":"https://insights.sbomify.com/CVE-2026-4046/index.md","name":"CVE-2026-4046","record":{"aliases":["ALSA-2026:20587","ALSA-2026:20594","AZL-81273","BELL-CVE-2026-4046","CLSA-2026-1779733763","CLSA-2026-1780135072","CLSA-2026-1780323824","CLSA-2026-1780561907","CLSA-2026-1783697985","DEBIAN-CVE-2026-4046","ECHO-511d-493a-869e","GHSA-g7c4-wv7q-gcc6","MINI-6j3w-v9vw-6jj2","MINI-v3gc-mm7m-6225","MINI-vv9p-q45w-3qm8","OESA-2026-2031","OESA-2026-2032","OESA-2026-2033","OESA-2026-2034","OESA-2026-2035","RHSA-2026:20587","RHSA-2026:20594","RLSA-2026:20587","RLSA-2026:20594","SUSE-SU-2026:1498-1","SUSE-SU-2026:1501-1","SUSE-SU-2026:1662-1","SUSE-SU-2026:21317-1","SUSE-SU-2026:21395-1","SUSE-SU-2026:21424-1","SUSE-SU-2026:2465-1","UBUNTU-CVE-2026-4046","openSUSE-SU-2026:10722-1"],"analysis":{"component_type":"library","fix_type":"configuration_change","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"GNU C Library","requires_auth":"none","summary":"Attackers can crash applications using glibc by sending specific IBM1390 or IBM1399 character set inputs, causing an assertion failure.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"glibc","cpe":[{"product":"glibc","vendor":"gnu"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","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"}],"description":"The iconv() function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or IBM1399 character sets, which may be used to remotely crash an application.\n\nThis vulnerability can be trivially mitigated by removing the IBM1390 and IBM1399 character sets from systems that do not need them.","ecosystems":["AlmaLinux:10","AlmaLinux:8","Red Hat:enterprise_linux:10.2","Red Hat:enterprise_linux:8::appstream","Red Hat:enterprise_linux:8::baseos","Red Hat:enterprise_linux:8::crb","Rocky Linux:10","Rocky Linux:8","SUSE:Linux Enterprise Live Patching 15 SP6","SUSE:Linux Enterprise Live Patching 15 SP7","SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"iconv crash due to assertion failure with untrusted input","id":"CVE-2026-4046","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"gnu:glibc","products":["gnu:glibc"],"type":"denial_of_service","year":"2026"},"n_packages":919,"n_references":3,"next":{"headline":"Command injection in ECS Connections Manager","id":"CVE-2026-4048"},"packages":[{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc","purl":"pkg:rpm/almalinux/glibc","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-all-langpacks","purl":"pkg:rpm/almalinux/glibc-all-langpacks","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-benchtests","purl":"pkg:rpm/almalinux/glibc-benchtests","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-common","purl":"pkg:rpm/almalinux/glibc-common","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-devel","purl":"pkg:rpm/almalinux/glibc-devel","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-doc","purl":"pkg:rpm/almalinux/glibc-doc","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-gconv-extra","purl":"pkg:rpm/almalinux/glibc-gconv-extra","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-aa","purl":"pkg:rpm/almalinux/glibc-langpack-aa","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-af","purl":"pkg:rpm/almalinux/glibc-langpack-af","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-agr","purl":"pkg:rpm/almalinux/glibc-langpack-agr","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ak","purl":"pkg:rpm/almalinux/glibc-langpack-ak","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-am","purl":"pkg:rpm/almalinux/glibc-langpack-am","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-an","purl":"pkg:rpm/almalinux/glibc-langpack-an","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-anp","purl":"pkg:rpm/almalinux/glibc-langpack-anp","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ar","purl":"pkg:rpm/almalinux/glibc-langpack-ar","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-as","purl":"pkg:rpm/almalinux/glibc-langpack-as","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ast","purl":"pkg:rpm/almalinux/glibc-langpack-ast","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ayc","purl":"pkg:rpm/almalinux/glibc-langpack-ayc","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-az","purl":"pkg:rpm/almalinux/glibc-langpack-az","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-be","purl":"pkg:rpm/almalinux/glibc-langpack-be","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bem","purl":"pkg:rpm/almalinux/glibc-langpack-bem","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ber","purl":"pkg:rpm/almalinux/glibc-langpack-ber","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bg","purl":"pkg:rpm/almalinux/glibc-langpack-bg","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bhb","purl":"pkg:rpm/almalinux/glibc-langpack-bhb","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bho","purl":"pkg:rpm/almalinux/glibc-langpack-bho","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bi","purl":"pkg:rpm/almalinux/glibc-langpack-bi","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bn","purl":"pkg:rpm/almalinux/glibc-langpack-bn","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bo","purl":"pkg:rpm/almalinux/glibc-langpack-bo","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-br","purl":"pkg:rpm/almalinux/glibc-langpack-br","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-brx","purl":"pkg:rpm/almalinux/glibc-langpack-brx","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bs","purl":"pkg:rpm/almalinux/glibc-langpack-bs","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-byn","purl":"pkg:rpm/almalinux/glibc-langpack-byn","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ca","purl":"pkg:rpm/almalinux/glibc-langpack-ca","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ce","purl":"pkg:rpm/almalinux/glibc-langpack-ce","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-chr","purl":"pkg:rpm/almalinux/glibc-langpack-chr","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ckb","purl":"pkg:rpm/almalinux/glibc-langpack-ckb","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-cmn","purl":"pkg:rpm/almalinux/glibc-langpack-cmn","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-crh","purl":"pkg:rpm/almalinux/glibc-langpack-crh","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-cs","purl":"pkg:rpm/almalinux/glibc-langpack-cs","source":"ALSA-2026:20594"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-124.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-csb","purl":"pkg:rpm/almalinux/glibc-langpack-csb","source":"ALSA-2026:20594"}],"prev":{"headline":"projectsend Auth.php response discrepancy","id":"CVE-2026-4045"},"products":["glibc"],"published":"2026-03-30","related":[{"cvss_score":9.8,"headline":"scanf %mc off-by-one heap buffer overflow","id":"CVE-2026-5450","kev_date_added":null,"published":"2026-04-20"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2023-25139","kev_date_added":null,"published":"2023-02-03"},{"cvss_score":9.8,"headline":"Other in n/a","id":"CVE-1999-0199","kev_date_added":null,"published":"2020-10-06"},{"cvss_score":9.8,"headline":"Security feature bypass in glibc","id":"CVE-2019-1010022","kev_date_added":null,"published":"2019-07-15"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2005-3590","kev_date_added":null,"published":"2019-04-10"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2017-18269","kev_date_added":null,"published":"2018-05-18"},{"cvss_score":9.8,"headline":"Integer overflow in n/a","id":"CVE-2018-11236","kev_date_added":null,"published":"2018-05-18"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["The GNU C Library"]},"summary":"Attackers can crash applications using glibc by sending specific IBM1390 or IBM1399 character set inputs, causing an assertion failure.","url":"https://insights.sbomify.com/CVE-2026-4046/"}