{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-49955 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-49955 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-49955 is a medium-severity denial of service vulnerability in nesquena hermes-webui, published on 9 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-2026-49955 and fix it if it is affected.\n\nWhat it is: CVE-2026-49955 is a medium-severity denial of service vulnerability in nesquena hermes-webui, published on 9 Jun 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-2026-49955 in the wild and no public exploit code.\n\nAffected product: nesquena hermes-webui. 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-2026-49955/ (Markdown: https://insights.sbomify.com/CVE-2026-49955/index.md)","id":"CVE-2026-49955","markdown":"https://insights.sbomify.com/CVE-2026-49955/index.md","name":"CVE-2026-49955","record":{"aliases":["GHSA-wwx5-jq7h-rp7v"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Hermes WebUI","requires_auth":"none","summary":"Unauthenticated attackers can cause denial of service in Hermes WebUI by exhausting resources via repeated passkey option requests.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"Hermes WebUI before version 0.51.270 contains a resource exhaustion vulnerability that allows unauthenticated remote attackers to degrade service availability by repeatedly calling the passkey options endpoint without completing assertion. Attackers can send unlimited POST requests to the authentication endpoint, causing unbounded growth of the challenge store file and excessive CPU and disk I/O through repeated JSON file rewrites.","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":"Hermes WebUI \u003c 0.51.270 Resource Exhaustion via passkey/options","id":"CVE-2026-49955","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"Hermes WebUI \u003c 0.51.269 Profile Isolation Bypass via sessions search","id":"CVE-2026-49956"},"packages":[],"prev":{"headline":"Discuz! X5.0 Local File Inclusion via enable_disable.php Plugin Directory","id":"CVE-2026-49954"},"products":["hermes-webui"],"published":"2026-06-09","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":"partial"},"state":"PUBLISHED","updated":"2026-07-14","vendors":["nesquena"]},"summary":"Unauthenticated attackers can cause denial of service in Hermes WebUI by exhausting resources via repeated passkey option requests.","url":"https://insights.sbomify.com/CVE-2026-49955/"}