{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40043 exists.","fix":"No fix has been published for CVE-2026-40043 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-40043 is a high-severity authentication bypass vulnerability in pancho Pachno, published on 13 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-40043 and fix it if it is affected.\n\nWhat it is: CVE-2026-40043 is a high-severity authentication bypass vulnerability in pancho Pachno, published on 13 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40043 exists.\n\nAffected product: pancho Pachno. 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-2026-40043/ (Markdown: https://insights.sbomify.com/CVE-2026-40043/index.md)","id":"CVE-2026-40043","markdown":"https://insights.sbomify.com/CVE-2026-40043/index.md","name":"CVE-2026-40043","record":{"aliases":["GHSA-h2hg-847v-g327"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["privilege_escalation","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Pachno web application","requires_auth":"low_privilege","summary":"Authenticated low-privilege users can escalate privileges to administrator by manipulating the original_username cookie in Pachno.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key"}],"description":"Pachno 1.0.6 contains an authentication bypass vulnerability in the runSwitchUser() action that allows authenticated low-privilege users to escalate privileges by manipulating the original_username cookie. Attackers can set the client-controlled original_username cookie to any value and request a switch to user ID 1 to obtain session tokens or password hashes belonging to administrator accounts.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Pachno 1.0.6 Authentication Bypass via runSwitchUser()","id":"CVE-2026-40043","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":"Pachno 1.0.6 FileCache Deserialization Remote Code Execution","id":"CVE-2026-40044"},"packages":[],"prev":{"headline":"Pachno 1.0.6 Wiki TextParser XML External Entity Injection","id":"CVE-2026-40042"},"products":["Pachno"],"published":"2026-04-13","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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-13","vendors":["pancho"]},"summary":"Authenticated low-privilege users can escalate privileges to administrator by manipulating the original_username cookie in Pachno.","url":"https://insights.sbomify.com/CVE-2026-40043/"}