{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-103877 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-103877 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-103877 is a critical unsafe deserialization vulnerability in Apache Directory LDAP API, published on 2 Oct 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-2026-103877 and fix it if it is affected.\n\nWhat it is: CVE-2026-103877 is a critical unsafe deserialization vulnerability in Apache Directory LDAP API, published on 2 Oct 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-2026-103877 in the wild and no public exploit code.\n\nAffected product: Apache Directory LDAP API. 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-2026-103877/ (Markdown: https://insights.sbomify.com/CVE-2026-103877/index.md)","id":"CVE-2026-103877","markdown":"https://insights.sbomify.com/CVE-2026-103877/index.md","name":"CVE-2026-103877","record":{"aliases":["DEBIAN-CVE-2026-103877","GHSA-v496-rffp-c5q7","UBUNTU-CVE-2026-103877"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Java LDAP library","requires_auth":"none","summary":"A malicious LDAP server can trigger remote code execution in applications using the Apache Directory LDAP API by sending crafted schema data.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","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-502","name":"Deserialization of Untrusted Data"}],"description":"Deserialization of Untrusted Data vulnerability in Apache Directory LDAP API.\n\nA rogue/compromised LDAP server (or pre-TLS MITM) can answer a client's loadSchema() subschema search with a schema object that contains a serialized Java class, allowing some potential RCE. \n\nThis issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9.\n\nUsers are recommended to upgrade to version 2.1.9, which fixes the issue.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Apache Directory LDAP API: Unsafe loading of Java code from LDAP schema elements","id":"CVE-2026-103877","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"deserialization","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Apache Directory LDAP API: Injection of plaintext responses during StartTLS","id":"CVE-2026-103878"},"packages":[],"prev":{"headline":"The Media Library Assistant plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'search-string' parameter in all ve","id":"CVE-2026-103875"},"products":["Apache Directory LDAP API"],"published":"2026-10-02","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":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-07","vendors":["Apache Software Foundation"]},"summary":"A malicious LDAP server can trigger remote code execution in applications using the Apache Directory LDAP API by sending crafted schema data.","url":"https://insights.sbomify.com/CVE-2026-103877/"}