{"answers":{"affected":"6 open source packages ship an affected version, including com.sun.el:el-ri, org.glassfish:jakarta.el and org.glassfish:javax.el. It affects 4 products.","exploited":"There is no known exploitation of CVE-2021-28170 in the wild and no public exploit code.","fix":"Upgrade com.sun.el:el-ri to 3.0.4 or later.","what":"CVE-2021-28170 is a medium-severity code injection vulnerability in Oracle Communications Cloud Native Core Policy, published on 26 May 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-2021-28170 and fix it if it is affected.\n\nWhat it is: CVE-2021-28170 is a medium-severity code injection vulnerability in Oracle Communications Cloud Native Core Policy, published on 26 May 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-2021-28170 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- com.sun.el:el-ri (Maven): affected all versions; fixed in 3.0.4\n- com.sun.el:el-ri (Maven): affected all versions; fixed in 3.0.4\n- org.glassfish:jakarta.el (Maven): affected all versions; fixed in 3.0.4\n- org.glassfish:jakarta.el (Maven): affected all versions; fixed in 3.0.4\n- org.glassfish:javax.el (Maven): affected all versions up to 3.0.1-b12; no fix listed\n- org.glassfish:javax.el (Maven): affected all versions up to 3.0.1-b12; no fix listed\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-2021-28170/ (Markdown: https://insights.sbomify.com/CVE-2021-28170/index.md)","id":"CVE-2021-28170","markdown":"https://insights.sbomify.com/CVE-2021-28170/index.md","name":"CVE-2021-28170","record":{"aliases":["CLSA-2025-1752537768","DEBIAN-CVE-2021-28170","GHSA-v6w3-2prq-h95f","UBUNTU-CVE-2021-28170"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Jakarta Expression Language","requires_auth":"none","summary":"Attackers can execute arbitrary code by exploiting a parser bug in the Jakarta Expression Language implementation that allows invalid expressions to be evaluated.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"eclipse","cpe":[{"product":"jakarta_expression_language","vendor":"eclipse"},{"product":"communications_cloud_native_core_policy","vendor":"oracle"},{"product":"weblogic_server","vendor":"oracle"},{"product":"quarkus","vendor":"quarkus"}],"cvss":{"score":5.3,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-917","name":"Improper Neutralization of Special Elements used in an Expression Language Statement"},{"id":"CWE-20","name":"Improper Input Validation"}],"description":"In the Jakarta Expression Language implementation 3.0.3 and earlier, a bug in the ELParserTokenManager enables invalid EL expressions to be evaluated as if they were valid.","ecosystems":["Maven"],"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":"Improper Input Validation in Jakarta Expression Language","id":"CVE-2021-28170","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"oracle:communications_cloud_native_core_policy","products":["oracle:communications_cloud_native_core_policy","oracle:weblogic_server"],"type":"code_injection","year":"2021"},"n_packages":6,"n_references":3,"next":{"headline":"Vangene deltaFlow E-platform - Broken Authentication","id":"CVE-2021-28171"},"packages":[{"ecosystem":"Maven","fixed":["3.0.4"],"introduced":["0"],"last_affected":[],"package":"com.sun.el:el-ri","purl":null,"source":"GHSA-v6w3-2prq-h95f"},{"ecosystem":"Maven","fixed":["3.0.4"],"introduced":["0"],"last_affected":[],"package":"com.sun.el:el-ri","purl":"pkg:maven/com.sun.el/el-ri","source":"GHSA-v6w3-2prq-h95f"},{"ecosystem":"Maven","fixed":["3.0.4"],"introduced":["0"],"last_affected":[],"package":"org.glassfish:jakarta.el","purl":null,"source":"GHSA-v6w3-2prq-h95f"},{"ecosystem":"Maven","fixed":["3.0.4"],"introduced":["0"],"last_affected":[],"package":"org.glassfish:jakarta.el","purl":"pkg:maven/org.glassfish/jakarta.el","source":"GHSA-v6w3-2prq-h95f"},{"ecosystem":"Maven","fixed":[],"introduced":["0"],"last_affected":["3.0.1-b12"],"package":"org.glassfish:javax.el","purl":null,"source":"GHSA-v6w3-2prq-h95f"},{"ecosystem":"Maven","fixed":[],"introduced":["0"],"last_affected":["3.0.1-b12"],"package":"org.glassfish:javax.el","purl":"pkg:maven/org.glassfish/javax.el","source":"GHSA-v6w3-2prq-h95f"}],"prev":{"headline":"Jetty Utility Servlets ConcatServlet Double Decoding Information Disclosure Vulnerability","id":"CVE-2021-28169"},"products":["Jakarta Expression Language Implementation"],"published":"2021-05-26","related":[],"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":["The Eclipse Foundation"]},"summary":"Attackers can execute arbitrary code by exploiting a parser bug in the Jakarta Expression Language implementation that allows invalid expressions to be evaluated.","url":"https://insights.sbomify.com/CVE-2021-28170/"}