{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-43507 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-43507 is a medium-severity denial of service vulnerability in Prosody, published on 1 May 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-2026-43507 and fix it if it is affected.\n\nWhat it is: CVE-2026-43507 is a medium-severity denial of service vulnerability in Prosody, published on 1 May 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-2026-43507 in the wild and no public exploit code.\n\nAffected product: Prosody. 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-2026-43507/ (Markdown: https://insights.sbomify.com/CVE-2026-43507/index.md)","id":"CVE-2026-43507","markdown":"https://insights.sbomify.com/CVE-2026-43507/index.md","name":"CVE-2026-43507","record":{"aliases":["DEBIAN-CVE-2026-43507","GHSA-q9r3-wmh7-jgmq","UBUNTU-CVE-2026-43507"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"XMPP server","requires_auth":"none","summary":"Unauthenticated attackers can cause denial of service in Prosody XMPP server via memory exhaustion from XML parsing amplification.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"prosody","vendor":"prosody"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"An issue was discovered in Prosody before 0.12.6 and 1.0.0 through 13.0.0 before 13.0.5. A Denial of Service can occur via memory exhaustion caused by XML parsing resource amplification from unauthenticated connections.","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":"Denial of service in Prosody","id":"CVE-2026-43507","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"CISA manage.get.gov insecure portfolio administrative privileges","id":"CVE-2026-43510"},"packages":[],"prev":{"headline":"Denial of service in Prosody","id":"CVE-2026-43506"},"products":["Prosody"],"published":"2026-05-01","related":[{"cvss_score":7.8,"headline":"Denial of service in n/a","id":"CVE-2014-2745","kev_date_added":null,"published":"2014-04-11"},{"cvss_score":7.5,"headline":"XML external entity in prosody","id":"CVE-2022-0217","kev_date_added":null,"published":"2022-08-26"},{"cvss_score":7.5,"headline":"Information disclosure in n/a","id":"CVE-2021-37601","kev_date_added":null,"published":"2021-07-28"},{"cvss_score":6.5,"headline":"Missing authorization in Prosody","id":"CVE-2026-43504","kev_date_added":null,"published":"2026-05-01"},{"cvss_score":6.5,"headline":"Missing authorization in Prosody","id":"CVE-2026-43505","kev_date_added":null,"published":"2026-05-01"},{"cvss_score":5.3,"headline":"Denial of service in Prosody","id":"CVE-2026-43506","kev_date_added":null,"published":"2026-05-01"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-05-01","vendors":["Prosody"]},"summary":"Unauthenticated attackers can cause denial of service in Prosody XMPP server via memory exhaustion from XML parsing amplification.","url":"https://insights.sbomify.com/CVE-2026-43507/"}