{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-15996 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-15996 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-15996 is a medium-severity denial of service vulnerability in Github Enterprise Server, published on 5 Aug 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-2026-15996 and fix it if it is affected.\n\nWhat it is: CVE-2026-15996 is a medium-severity denial of service vulnerability in Github Enterprise Server, published on 5 Aug 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-2026-15996 in the wild and no public exploit code.\n\nAffected product: Github Enterprise Server. 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-2026-15996/ (Markdown: https://insights.sbomify.com/CVE-2026-15996/index.md)","id":"CVE-2026-15996","markdown":"https://insights.sbomify.com/CVE-2026-15996/index.md","name":"CVE-2026-15996","record":{"aliases":["GHSA-3x3p-rpwc-h9wf"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"GitHub Enterprise Server","requires_auth":"none","summary":"Unauthenticated attackers can cause denial of service in GitHub Enterprise Server by sending crafted requests with deeply nested parameters, exhausting worker processes.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_P","cpe":[{"product":"enterprise_server","vendor":"github"}],"cvss":{"score":6.6,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U","version":"4.0"},"cwes":[{"id":"CWE-674","name":"Uncontrolled Recursion"}],"description":"A denial of service vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to cause excessive CPU consumption and exhaust the pool of request-handling worker processes by sending a crafted form-encoded HTTP POST request containing deeply nested parameters. Because request parameters were parsed before routing and authentication, any POST endpoint could be used to trigger the condition, which could render the instance unresponsive. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.3, 3.19.7, 3.18.10, and 3.17.16.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Denial of service in Enterprise Server","id":"CVE-2026-15996","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"github:enterprise_server","products":["github:enterprise_server"],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"Native ARM SHA3 / SHAKE `restoreFullState` fails to detect size_t underflow in a crafted encoded state","id":"CVE-2026-15997"},"packages":[],"prev":{"headline":"Race condition in Cognos Analytics","id":"CVE-2026-15995"},"products":["Enterprise Server"],"published":"2026-08-05","related":[{"cvss_score":10,"headline":"Auth bypass in Enterprise Server","id":"CVE-2024-4985","kev_date_added":null,"published":"2024-05-20"},{"cvss_score":9.8,"headline":"Missing authorization in GitHub Enterprise Server","id":"CVE-2022-23739","kev_date_added":null,"published":"2023-01-17"},{"cvss_score":9.8,"headline":"Improper Limitation of a Pathname to a Restricted Directory in GitHub Enterprise Server leading to RCE","id":"CVE-2022-46255","kev_date_added":null,"published":"2022-12-14"},{"cvss_score":9.8,"headline":"Improper access control in GitHub Enterprise Server allows self-hosted runners to execute outside their control group","id":"CVE-2021-22869","kev_date_added":null,"published":"2021-09-24"},{"cvss_score":9.5,"headline":"Auth bypass in Enterprise Server","id":"CVE-2024-9487","kev_date_added":null,"published":"2024-10-10"},{"cvss_score":9.5,"headline":"Auth bypass in GitHub Enterprise Server","id":"CVE-2024-6800","kev_date_added":null,"published":"2024-08-20"},{"cvss_score":9.3,"headline":"GitHub Enterprise Server notebook viewer vulnerable to Server-side request forgery","id":"CVE-2026-77987","kev_date_added":null,"published":"2026-09-22"}],"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":"2026-08-06","vendors":["GitHub"]},"summary":"Unauthenticated attackers can cause denial of service in GitHub Enterprise Server by sending crafted requests with deeply nested parameters, exhausting worker processes.","url":"https://insights.sbomify.com/CVE-2026-15996/"}