{"answers":{"affected":"It affects 1 product.","exploited":"Yes. Attackers have exploited CVE-2026-28318 in the wild since at least 5 Jun 2026.","fix":"No fix has been published for CVE-2026-28318 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 19 Jun 2026.","what":"CVE-2026-28318 is a high-severity denial of service vulnerability in Solarwinds Serv-U, published on 4 Jun 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-2026-28318 and fix it if it is affected.\n\nWhat it is: CVE-2026-28318 is a high-severity denial of service vulnerability in Solarwinds Serv-U, published on 4 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2026-28318 in the wild since at least 5 Jun 2026.\n\nAffected product: Solarwinds Serv-U. 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-2026-28318/ (Markdown: https://insights.sbomify.com/CVE-2026-28318/index.md)","id":"CVE-2026-28318","markdown":"https://insights.sbomify.com/CVE-2026-28318/index.md","name":"CVE-2026-28318","record":{"aliases":["GHSA-4vx4-vp54-mwmc"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"File Transfer Server","requires_auth":"none","summary":"Unauthenticated attackers can crash the Serv-U service via crafted POST requests, requiring a patch to restore availability.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"SolarWinds","cpe":[{"product":"serv-u","vendor":"solarwinds"}],"cvss":{"score":7.5,"severity":"high","source":"cna","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-400","name":"Uncontrolled Resource Consumption"}],"description":"SolarWinds Serv-U is susceptible to specially crafted POST requests that crash the Serv-U service without authentication using Content-Encoding: deflate. Mitigation steps are provided to secure customer environments in the SolarWinds Trust Center if you are unable to deploy the update","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-06-10","github_poc":2,"max_poc_stars":1,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-06-10T07:02:47Z","kind":"github_poc","ref":"https://github.com/EaEa0001/servu-cve-2026-28318-poc","stars":1,"title":"SolarWinds Serv-U CVE-2026-28318: unauthenticated Content-Encoding: deflate crash. Root-cause analysis (invalid free of an interior pointer -\u003e heap corruption) + DoS-only PoC. Fixed in 15.5.4 Hotfix 1."},{"date":"2026-06-12T20:09:57Z","kind":"github_poc","ref":"https://github.com/BishopFox/CVE-2026-28318-check","stars":1,"title":"Safely detect whether a SolarWinds Serv-U host is vulnerable to CVE-2026-28318"}],"tier":"exploited"},"has_fix":null,"headline":"SolarWinds Serv-U Uncontrolled Resource Consumption","id":"CVE-2026-28318","indexable":true,"kev":{"dateAdded":"2026-06-05","dueDate":"2026-06-19","knownRansomwareCampaignUse":"Unknown","product":"Serv-U","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","vendorProject":"SolarWinds","vulnerabilityName":"SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"solarwinds:serv-u","products":["solarwinds:serv-u"],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"SolarWinds Serv-U Broken Access Control Vulnerability","id":"CVE-2026-28321"},"packages":[],"prev":{"headline":"SolarWinds Serv-U Insecure Direct Object Reference (IDOR) Vulnerability","id":"CVE-2026-28317"},"products":["Serv-U"],"published":"2026-06-04","related":[{"cvss_score":9,"headline":"SolarWinds Serv-U Remote Code Execution","id":"CVE-2021-35211","kev_date_added":"2021-11-03","published":"2021-07-14"},{"cvss_score":8.6,"headline":"SolarWinds Serv-U Path Traversal Vulnerability","id":"CVE-2024-28995","kev_date_added":"2024-07-17","published":"2024-06-06"},{"cvss_score":4.3,"headline":"SolarWinds Serv-U Improper Input Validation","id":"CVE-2021-35247","kev_date_added":"2022-01-21","published":"2022-01-07"},{"cvss_score":9.8,"headline":"Code injection in n/a","id":"CVE-2020-35481","kev_date_added":null,"published":"2021-02-03"},{"cvss_score":9.1,"headline":"SolarWinds Serv-U Insecure Direct Object Reference (IDOR) Vulnerability","id":"CVE-2026-28302","kev_date_added":null,"published":"2026-07-21"},{"cvss_score":9.1,"headline":"SolarWinds Serv-U Remote Code Execution Vulnerability","id":"CVE-2026-28304","kev_date_added":null,"published":"2026-07-21"}],"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":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"active","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-21","vendors":["SolarWinds"]},"summary":"Unauthenticated attackers can crash the Serv-U service via crafted POST requests, requiring a patch to restore availability.","url":"https://insights.sbomify.com/CVE-2026-28318/"}