{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-111927 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-111927 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-111927 is a high-severity authentication bypass vulnerability in coder, published on 17 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-111927 and fix it if it is affected.\n\nWhat it is: CVE-2026-111927 is a high-severity authentication bypass vulnerability in coder, published on 17 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-111927 in the wild and no public exploit code.\n\nAffected product: coder. 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-2026-111927/ (Markdown: https://insights.sbomify.com/CVE-2026-111927/index.md)","id":"CVE-2026-111927","markdown":"https://insights.sbomify.com/CVE-2026-111927/index.md","name":"CVE-2026-111927","record":{"aliases":["GHSA-47cv-h282-xh6p","GHSA-h58h-qvv5-xvwg"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["account_takeover","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Coder development platform","requires_auth":"low_privilege","summary":"Attackers can steal API keys via hostname prefix matching flaws, allowing unauthorized access to victim workspaces in Coder.","user_interaction":"required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","version":"4.0"},"cwes":[{"id":"CWE-522","name":"Insufficiently Protected Credentials"}],"description":"Coder before 2.29.20, 2.33.0 before 2.33.12, 2.34.0 before 2.34.8, and 2.35.0 before 2.35.4 contains an improper hostname validation flaw in GetWorkspaceProxyByHostname whose SIMILAR TO pattern performs a prefix match, so any domain that is a string prefix of a workspace-proxy access URL is trusted as a proxy. Attackers owning such a domain can lure an authenticated victim to a crafted /api/v2/applications/auth-redirect link, capture the redirected application_connect API key, and replay it to access the victim's workspace apps.","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":"Coder before 2.35.4 Credential Theft via Workspace Proxy Hostname Prefix Match","id":"CVE-2026-111927","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Coder 2.0.0 before 2.34.8 Authorization Bypass via User-Level ACL in RBAC Policy","id":"CVE-2026-111928"},"packages":[],"prev":{"headline":"Coder from 2.10.0 before 2.34.8 Information Disclosure via Agent /debug/manifest","id":"CVE-2026-111926"},"products":["coder"],"published":"2026-10-17","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-21","vendors":["coder"]},"summary":"Attackers can steal API keys via hostname prefix matching flaws, allowing unauthorized access to victim workspaces in Coder.","url":"https://insights.sbomify.com/CVE-2026-111927/"}