{"answers":{"affected":"2 open source packages ship an affected version, including smarty/smarty. It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-26120 in the wild and no public exploit code.","fix":"Upgrade smarty/smarty to 3.1.39 or later.","what":"CVE-2021-26120 is a critical code injection vulnerability in Debian Debian Linux, published on 22 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-26120 and fix it if it is affected.\n\nWhat it is: CVE-2021-26120 is a critical code injection vulnerability in Debian Debian Linux, published on 22 Feb 2021. 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-2021-26120 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- smarty/smarty (Packagist): affected all versions; fixed in 3.1.39\n- smarty/smarty (Packagist): affected all versions; fixed in 3.1.39\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-2021-26120/ (Markdown: https://insights.sbomify.com/CVE-2021-26120/index.md)","id":"CVE-2021-26120","markdown":"https://insights.sbomify.com/CVE-2021-26120/index.md","name":"CVE-2021-26120","record":{"aliases":["DEBIAN-CVE-2021-26120","GHSA-3rpf-5rqv-689q","UBUNTU-CVE-2021-26120"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Smarty template engine","requires_auth":"none","summary":"Attackers can execute arbitrary code by exploiting a flaw in the Smarty template engine's function name parsing.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"smarty","vendor":"smarty"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","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-94","name":"Improper Control of Generation of Code"}],"description":"Smarty before 3.1.39 allows code injection via an unexpected function name after a {function name= substring.","ecosystems":["Packagist"],"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":"PHP Code Injection by malicious function name in smarty","id":"CVE-2021-26120","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":"debian:debian_linux","products":["debian:debian_linux"],"type":"code_injection","year":"2021"},"n_packages":2,"n_references":5,"next":{"headline":"Cross-site scripting in n/a","id":"CVE-2021-26122"},"packages":[{"ecosystem":"Packagist","fixed":["3.1.39"],"introduced":["0"],"last_affected":[],"package":"smarty/smarty","purl":null,"source":"GHSA-3rpf-5rqv-689q"},{"ecosystem":"Packagist","fixed":["3.1.39"],"introduced":["0"],"last_affected":[],"package":"smarty/smarty","purl":"pkg:composer/smarty/smarty","source":"GHSA-3rpf-5rqv-689q"}],"prev":{"headline":"Sandbox escape through template_object in smarty","id":"CVE-2021-26119"},"products":["n/a"],"published":"2021-02-22","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Attackers can execute arbitrary code by exploiting a flaw in the Smarty template engine's function name parsing.","url":"https://insights.sbomify.com/CVE-2021-26120/"}