{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5450 exists.","fix":"Apply the vendor's patch.","what":"CVE-2026-5450 is a critical memory corruption vulnerability in Gnu Glibc, published on 20 Apr 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-2026-5450 and fix it if it is affected.\n\nWhat it is: CVE-2026-5450 is a critical memory corruption vulnerability in Gnu Glibc, published on 20 Apr 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-2026-5450 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-2026-5450/ (Markdown: https://insights.sbomify.com/CVE-2026-5450/index.md)","id":"CVE-2026-5450","markdown":"https://insights.sbomify.com/CVE-2026-5450/index.md","name":"CVE-2026-5450","record":{"aliases":["ALSA-2026:33092","ALSA-2026:33126","ALSA-2026:33226","AZL-83093","CLSA-2026-1782488061","DEBIAN-CVE-2026-5450","ECHO-56eb-505f-7a61","GHSA-v898-xg3c-w4rj","MINI-7hwm-hwwm-72w6","MINI-cmmm-vp98-cjhp","MINI-xvmv-4xrg-gv25","RHSA-2026:33092","RHSA-2026:33126","RHSA-2026:33170","RHSA-2026:33226","RHSA-2026:33227","RHSA-2026:33228","RHSA-2026:33229","RHSA-2026:33230","RHSA-2026:33231","RHSA-2026:34211","RHSA-2026:36643","RHSA-2026:37395","RHSA-2026:37396","RLSA-2026:33092","RLSA-2026:33126","RLSA-2026:33226","ROOT-OS-DEBIAN-11-CVE-2026-5450","ROOT-OS-DEBIAN-12-CVE-2026-5450","UBUNTU-CVE-2026-5450","openSUSE-SU-2026:12059-1"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"GNU C Library","requires_auth":"none","summary":"A heap buffer overflow in glibc's scanf function allows attackers to execute arbitrary code or cause denial of service via crafted input.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"glibc","cpe":[{"product":"glibc","vendor":"gnu"}],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"Calling the scanf family of functions with a %mc (malloc'd character match) in the GNU C Library version 2.7 to version 2.43 with a format width specifier with an explicit width greater than 1024 could result in a one byte heap buffer overflow.","ecosystems":["AlmaLinux:10","AlmaLinux:8","AlmaLinux:9","Red Hat:enterprise_linux:10.2","Red Hat:enterprise_linux:8::appstream","Red Hat:enterprise_linux:8::baseos","Red Hat:enterprise_linux:8::crb","Red Hat:enterprise_linux:9::appstream","Red Hat:enterprise_linux:9::baseos","Red Hat:enterprise_linux:9::crb","Red Hat:enterprise_linux_eus:10.0","Red Hat:rhel_aus:8.4::appstream","Red Hat:rhel_aus:8.4::baseos","Red Hat:rhel_aus:8.6::appstream","Red Hat:rhel_aus:8.6::baseos","Red Hat:rhel_e4s:8.8::appstream","Red Hat:rhel_e4s:8.8::baseos","Red Hat:rhel_e4s:9.2::appstream","Red Hat:rhel_e4s:9.2::baseos","Red Hat:rhel_e4s:9.4::appstream","Red Hat:rhel_e4s:9.4::baseos","Red Hat:rhel_els:6","Red Hat:rhel_els:7","Red Hat:rhel_eus:9.6::appstream","Red Hat:rhel_eus:9.6::baseos","Red Hat:rhel_eus:9.6::crb","Red Hat:rhel_eus_long_life:8.4::appstream","Red Hat:rhel_eus_long_life:8.4::baseos","Red Hat:rhel_eus_long_life:8.6::appstream","Red Hat:rhel_eus_long_life:8.6::baseos","Red Hat:rhel_tus:8.8::appstream","Red Hat:rhel_tus:8.8::baseos","Rocky Linux:10","Rocky Linux:8","Rocky Linux:9","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":"scanf %mc off-by-one heap buffer overflow","id":"CVE-2026-5450","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"gnu:glibc","products":["gnu:glibc"],"type":"memory_corruption","year":"2026"},"n_packages":3684,"n_references":2,"next":{"headline":"Cross-site scripting in Extensions for Leaflet Map","id":"CVE-2026-5451"},"packages":[{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc","purl":"pkg:rpm/almalinux/glibc","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-all-langpacks","purl":"pkg:rpm/almalinux/glibc-all-langpacks","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-benchtests","purl":"pkg:rpm/almalinux/glibc-benchtests","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-common","purl":"pkg:rpm/almalinux/glibc-common","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-devel","purl":"pkg:rpm/almalinux/glibc-devel","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-doc","purl":"pkg:rpm/almalinux/glibc-doc","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-gconv-extra","purl":"pkg:rpm/almalinux/glibc-gconv-extra","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-aa","purl":"pkg:rpm/almalinux/glibc-langpack-aa","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-af","purl":"pkg:rpm/almalinux/glibc-langpack-af","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-agr","purl":"pkg:rpm/almalinux/glibc-langpack-agr","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ak","purl":"pkg:rpm/almalinux/glibc-langpack-ak","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-am","purl":"pkg:rpm/almalinux/glibc-langpack-am","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-an","purl":"pkg:rpm/almalinux/glibc-langpack-an","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-anp","purl":"pkg:rpm/almalinux/glibc-langpack-anp","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ar","purl":"pkg:rpm/almalinux/glibc-langpack-ar","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-as","purl":"pkg:rpm/almalinux/glibc-langpack-as","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ast","purl":"pkg:rpm/almalinux/glibc-langpack-ast","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ayc","purl":"pkg:rpm/almalinux/glibc-langpack-ayc","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-az","purl":"pkg:rpm/almalinux/glibc-langpack-az","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-be","purl":"pkg:rpm/almalinux/glibc-langpack-be","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bem","purl":"pkg:rpm/almalinux/glibc-langpack-bem","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ber","purl":"pkg:rpm/almalinux/glibc-langpack-ber","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bg","purl":"pkg:rpm/almalinux/glibc-langpack-bg","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bhb","purl":"pkg:rpm/almalinux/glibc-langpack-bhb","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bho","purl":"pkg:rpm/almalinux/glibc-langpack-bho","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bi","purl":"pkg:rpm/almalinux/glibc-langpack-bi","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bn","purl":"pkg:rpm/almalinux/glibc-langpack-bn","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bo","purl":"pkg:rpm/almalinux/glibc-langpack-bo","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-br","purl":"pkg:rpm/almalinux/glibc-langpack-br","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-brx","purl":"pkg:rpm/almalinux/glibc-langpack-brx","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bs","purl":"pkg:rpm/almalinux/glibc-langpack-bs","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-byn","purl":"pkg:rpm/almalinux/glibc-langpack-byn","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ca","purl":"pkg:rpm/almalinux/glibc-langpack-ca","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ce","purl":"pkg:rpm/almalinux/glibc-langpack-ce","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-chr","purl":"pkg:rpm/almalinux/glibc-langpack-chr","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ckb","purl":"pkg:rpm/almalinux/glibc-langpack-ckb","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-cmn","purl":"pkg:rpm/almalinux/glibc-langpack-cmn","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-crh","purl":"pkg:rpm/almalinux/glibc-langpack-crh","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-cs","purl":"pkg:rpm/almalinux/glibc-langpack-cs","source":"ALSA-2026:33092"},{"ecosystem":"AlmaLinux:10","fixed":["2.39-126.el10_2.alma.1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-csb","purl":"pkg:rpm/almalinux/glibc-langpack-csb","source":"ALSA-2026:33092"}],"prev":{"headline":"1-2 Byte Buffer Overflow in wolfSSL_X509_notAfter/notBefore","id":"CVE-2026-5448"},"products":["glibc"],"published":"2026-04-20","related":[{"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":"total"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["The GNU C Library"]},"summary":"A heap buffer overflow in glibc's scanf function allows attackers to execute arbitrary code or cause denial of service via crafted input.","url":"https://insights.sbomify.com/CVE-2026-5450/"}