{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-77117 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-77117 is a medium-severity denial of service vulnerability in The GNU C Library glibc, published on 15 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-2026-77117 and fix it if it is affected.\n\nWhat it is: CVE-2026-77117 is a medium-severity denial of service vulnerability in The GNU C Library glibc, published on 15 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-2026-77117 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-2026-77117/ (Markdown: https://insights.sbomify.com/CVE-2026-77117/index.md)","id":"CVE-2026-77117","markdown":"https://insights.sbomify.com/CVE-2026-77117/index.md","name":"CVE-2026-77117","record":{"aliases":["AZL-100959","BELL-CVE-2026-77117","DEBIAN-CVE-2026-77117","ECHO-52f8-53b9-ae20","GHSA-g8c6-x9r9-wj7f","UBUNTU-CVE-2026-77117"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"GNU C Library","requires_auth":"none","summary":"Crafted SHIFT_JISX0213 input causes glibc iconv to hang indefinitely, leading to denial of service in applications using small output buffers.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"glibc","cpe":[],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"}],"description":"Converting crafted SHIFT_JISX0213 input to UCS-4 or the internal wide character encoding, for example with iconv, in the GNU C Library version 2.3 to 2.44 may result in the converter making no progress, causing the calling application to hang.\n\nSome SHIFT_JISX0213 sequences decode to two code points.  If the output buffer has room for only the first one, the converter stores the second in the conversion state and returns E2BIG, but it never clears that pending character after emitting it on the next call.  The converter then keeps emitting the pending character without consuming further input, so an application that retries the conversion loops forever. The input must be attacker controlled and the application must convert it with an output buffer small enough to split the two code points. Only the SHIFT_JISX0213 character set is affected, which is not commonly used.  The related defect in the EUC_JISX0213 converter is tracked separately as CVE-2026-80489.","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":"SHIFT_JISX0213 decoding may hang on crafted input","id":"CVE-2026-77117","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":"Out-of-bounds write in GraphicsMagick PCD decoder","id":"CVE-2026-77118"},"packages":[],"prev":{"headline":"Brave Popup Builder \u003c 0.8.6 - Subscriber+ Unpublished Popup Disclosure via Preview","id":"CVE-2026-77116"},"products":["glibc"],"published":"2026-09-15","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":["The GNU C Library"]},"summary":"Crafted SHIFT_JISX0213 input causes glibc iconv to hang indefinitely, leading to denial of service in applications using small output buffers.","url":"https://insights.sbomify.com/CVE-2026-77117/"}