{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-19499 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-19499 is a high-severity memory corruption vulnerability in The GNU C Library glibc, published on 14 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-2026-19499 and fix it if it is affected.\n\nWhat it is: CVE-2026-19499 is a high-severity memory corruption vulnerability in The GNU C Library glibc, published on 14 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-2026-19499 in the wild and no public exploit code.\n\nAffected product: The GNU C Library 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-2026-19499/ (Markdown: https://insights.sbomify.com/CVE-2026-19499/index.md)","id":"CVE-2026-19499","markdown":"https://insights.sbomify.com/CVE-2026-19499/index.md","name":"CVE-2026-19499","record":{"aliases":["AZL-100962","BELL-CVE-2026-19499","DEBIAN-CVE-2026-19499","ECHO-0b68-19f2-1a40","GHSA-3vcj-mghm-mw9p","RHSA-2026:60865","ROOT-OS-DEBIAN-12-CVE-2026-19499","ROOT-OS-DEBIAN-13-CVE-2026-19499","UBUNTU-CVE-2026-19499"],"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":"Buffer overflow in glibc strfmon functions allows attackers to write past buffer boundaries, potentially causing crashes or code execution.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"glibc","cpe":[],"cvss":{"score":7.7,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:H","version":"3.1"},"cwes":[{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"Calling strfmon and strfmon_l in the GNU C Library version 2.38 to 2.44 can write past the end of the caller-supplied output buffer when a conversion uses right-justified width padding.\n\nExploitation requires an application code path that calls strfmon or strfmon_l with right-justified width padding into a destination buffer that is large enough for the padding to succeed but too small for the internal memmove call. The field width or format may be attacker-influenced or a fixed susceptible pattern in the caller.\n\nAt the time of publication, no network-facing application impact is known.","ecosystems":["Red Hat:hummingbird:1"],"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":"Buffer overflow in strfmon and strfmon_l right-justification padding","id":"CVE-2026-19499","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":228,"n_references":2,"next":{"headline":"SureForms contains an uncontrolled resource consumption vulnerability","id":"CVE-2026-19500"},"packages":[{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"compat-libpthread-nonshared","purl":"pkg:rpm/redhat/compat-libpthread-nonshared","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc","purl":"pkg:rpm/redhat/glibc","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-all-langpacks","purl":"pkg:rpm/redhat/glibc-all-langpacks","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-benchtests","purl":"pkg:rpm/redhat/glibc-benchtests","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-common","purl":"pkg:rpm/redhat/glibc-common","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-devel","purl":"pkg:rpm/redhat/glibc-devel","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-doc","purl":"pkg:rpm/redhat/glibc-doc","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-gconv-extra","purl":"pkg:rpm/redhat/glibc-gconv-extra","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-aa","purl":"pkg:rpm/redhat/glibc-langpack-aa","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-af","purl":"pkg:rpm/redhat/glibc-langpack-af","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-agr","purl":"pkg:rpm/redhat/glibc-langpack-agr","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ak","purl":"pkg:rpm/redhat/glibc-langpack-ak","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-am","purl":"pkg:rpm/redhat/glibc-langpack-am","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-an","purl":"pkg:rpm/redhat/glibc-langpack-an","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-anp","purl":"pkg:rpm/redhat/glibc-langpack-anp","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ar","purl":"pkg:rpm/redhat/glibc-langpack-ar","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-as","purl":"pkg:rpm/redhat/glibc-langpack-as","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ast","purl":"pkg:rpm/redhat/glibc-langpack-ast","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ayc","purl":"pkg:rpm/redhat/glibc-langpack-ayc","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-az","purl":"pkg:rpm/redhat/glibc-langpack-az","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-be","purl":"pkg:rpm/redhat/glibc-langpack-be","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bem","purl":"pkg:rpm/redhat/glibc-langpack-bem","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ber","purl":"pkg:rpm/redhat/glibc-langpack-ber","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bg","purl":"pkg:rpm/redhat/glibc-langpack-bg","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bhb","purl":"pkg:rpm/redhat/glibc-langpack-bhb","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bho","purl":"pkg:rpm/redhat/glibc-langpack-bho","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bi","purl":"pkg:rpm/redhat/glibc-langpack-bi","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bn","purl":"pkg:rpm/redhat/glibc-langpack-bn","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bo","purl":"pkg:rpm/redhat/glibc-langpack-bo","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-br","purl":"pkg:rpm/redhat/glibc-langpack-br","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-brx","purl":"pkg:rpm/redhat/glibc-langpack-brx","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-bs","purl":"pkg:rpm/redhat/glibc-langpack-bs","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-byn","purl":"pkg:rpm/redhat/glibc-langpack-byn","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ca","purl":"pkg:rpm/redhat/glibc-langpack-ca","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ce","purl":"pkg:rpm/redhat/glibc-langpack-ce","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-chr","purl":"pkg:rpm/redhat/glibc-langpack-chr","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-ckb","purl":"pkg:rpm/redhat/glibc-langpack-ckb","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-cmn","purl":"pkg:rpm/redhat/glibc-langpack-cmn","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-crh","purl":"pkg:rpm/redhat/glibc-langpack-crh","source":"RHSA-2026:60865"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:2.43-8.3.hum1"],"introduced":["0"],"last_affected":[],"package":"glibc-langpack-cs","purl":"pkg:rpm/redhat/glibc-langpack-cs","source":"RHSA-2026:60865"}],"prev":{"headline":"Security vulnerabilities have been found in IBM Verify Identity Access and IBM Security Verify Access","id":"CVE-2026-19498"},"products":["glibc"],"published":"2026-09-14","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"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":"2026-09-14","vendors":["The GNU C Library"]},"summary":"Buffer overflow in glibc strfmon functions allows attackers to write past buffer boundaries, potentially causing crashes or code execution.","url":"https://insights.sbomify.com/CVE-2026-19499/"}