{"answers":{"affected":"4 open source packages ship an affected version, including org.apache.logging.log4j:log4j-core and log4j:log4j. It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-26464 in the wild and no public exploit code.","fix":"Upgrade org.apache.logging.log4j:log4j-core to 2.0 or later.","what":"CVE-2023-26464 is a high-severity denial of service vulnerability in Apache Log4j, published on 10 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-26464 and fix it if it is affected.\n\nWhat it is: CVE-2023-26464 is a high-severity denial of service vulnerability in Apache Log4j, published on 10 Mar 2023. 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-2023-26464 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.apache.logging.log4j:log4j-core (Maven): affected from 1.0.4; fixed in 2.0\n- org.apache.logging.log4j:log4j-core (Maven): affected from 1.0.4; fixed in 2.0\n- log4j:log4j (Maven): affected from 1.0.4; fixed in 2.0\n- log4j:log4j (Maven): affected from 1.0.4; fixed in 2.0\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-2023-26464/ (Markdown: https://insights.sbomify.com/CVE-2023-26464/index.md)","id":"CVE-2023-26464","markdown":"https://insights.sbomify.com/CVE-2023-26464/index.md","name":"CVE-2023-26464","record":{"aliases":["CLSA-2025-1754352206","GHSA-vp98-w2p3-mv35","MINI-mf8p-gm85-4wjc","MINI-w8mq-62jw-ggrv","ROOT-APP-MAVEN-CVE-2023-26464","UBUNTU-CVE-2023-26464"],"analysis":{"component_type":"library","fix_type":"end_of_life","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Java logging library","requires_auth":"none","summary":"Attackers can cause Denial of Service in Log4j 1.x by triggering memory exhaustion via specially crafted objects in Chainsaw or SocketAppender components.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"log4j","vendor":"apache"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"** UNSUPPORTED WHEN ASSIGNED **\n\nWhen using the Chainsaw or SocketAppender components with Log4j 1.x on JRE less than 1.7, an attacker that manages to cause a logging entry involving a specially-crafted (ie, deeply nested) \nhashmap or hashtable (depending on which logging component is in use) to be processed could exhaust the available memory in the virtual machine and achieve Denial of Service when the object is deserialized.\n\nThis issue affects Apache Log4j before 2. Affected users are recommended to update to Log4j 2.x.\n\nNOTE: This vulnerability only affects products that are no longer supported by the maintainer.","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":"Apache Log4j 1.x (EOL) allows DoS in Chainsaw and SocketAppender","id":"CVE-2023-26464","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":4,"n_references":2,"next":{"headline":"Cross-site scripting in Pega Infinity","id":"CVE-2023-26465"},"packages":[{"ecosystem":"Maven","fixed":["2.0"],"introduced":["1.0.4"],"last_affected":[],"package":"log4j:log4j","purl":null,"source":"GHSA-vp98-w2p3-mv35"},{"ecosystem":"Maven","fixed":["2.0"],"introduced":["1.0.4"],"last_affected":[],"package":"log4j:log4j","purl":"pkg:maven/log4j/log4j","source":"GHSA-vp98-w2p3-mv35"},{"ecosystem":"Maven","fixed":["2.0"],"introduced":["1.0.4"],"last_affected":[],"package":"org.apache.logging.log4j:log4j-core","purl":null,"source":"GHSA-vp98-w2p3-mv35"},{"ecosystem":"Maven","fixed":["2.0"],"introduced":["1.0.4"],"last_affected":[],"package":"org.apache.logging.log4j:log4j-core","purl":"pkg:maven/org.apache.logging.log4j/log4j-core","source":"GHSA-vp98-w2p3-mv35"}],"prev":{"headline":"Use after free in n/a","id":"CVE-2023-26463"},"products":["Apache Log4j"],"published":"2023-03-10","related":[{"cvss_score":10,"headline":"Apache Log4j2 Remote Code Execution","id":"CVE-2021-44228","kev_date_added":"2021-12-10","published":"2021-12-10"},{"cvss_score":9,"headline":"Apache Log4j2 Deserialization of Untrusted Data","id":"CVE-2021-45046","kev_date_added":"2023-05-01","published":"2021-12-14"},{"cvss_score":9.8,"headline":"SQL injection in JDBC Appender in Apache Log4j V1","id":"CVE-2022-23305","kev_date_added":null,"published":"2022-01-18"},{"cvss_score":9.8,"headline":"Deserialization of Untrusted Data in Log4j","id":"CVE-2017-5645","kev_date_added":null,"published":"2017-04-17"},{"cvss_score":8.8,"headline":"Deserialization of untrusted data in JMSSink in Apache Log4j 1.x","id":"CVE-2022-23302","kev_date_added":null,"published":"2022-01-18"},{"cvss_score":7.5,"headline":"Deserialization of untrusted data in JMSAppender in Apache Log4j 1.2","id":"CVE-2021-4104","kev_date_added":null,"published":"2021-12-14"}],"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-02-13","vendors":["Apache Software Foundation"]},"summary":"Attackers can cause Denial of Service in Log4j 1.x by triggering memory exhaustion via specially crafted objects in Chainsaw or SocketAppender components.","url":"https://insights.sbomify.com/CVE-2023-26464/"}