{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34959 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2026-34959 is a medium-severity vulnerability in vrana adminer, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-34959 and fix it if it is affected.\n\nWhat it is: CVE-2026-34959 is a medium-severity vulnerability in vrana adminer, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34959 exists.\n\nAffected product: vrana adminer. 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-2026-34959/ (Markdown: https://insights.sbomify.com/CVE-2026-34959/index.md)","id":"CVE-2026-34959","markdown":"https://insights.sbomify.com/CVE-2026-34959/index.md","name":"CVE-2026-34959","record":{"aliases":["DEBIAN-CVE-2026-34959","GHSA-8478-xrj3-h9c2","GHSA-fh9x-8h7v-rwhv","UBUNTU-CVE-2026-34959"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["security_bypass","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Database management tool","requires_auth":"none","summary":"Attackers can exploit unvalidated X-Forwarded-Prefix headers to redirect users to malicious sites or manipulate session cookies in Adminer.","user_interaction":"required","vuln_class":"open_redirect"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"Adminer 4.6.0 before 5.5.0 prepends the client-supplied X-Forwarded-Prefix header to $_SERVER[\"REQUEST_URI\"] with no trusted-proxy check and no validation of the prefix value. An attacker can supply an absolute URL (e.g. X-Forwarded-Prefix: https://evil.example) that flows into Location redirect headers, the Set-Cookie path attribute, and self-referential links. This enables an authenticated open redirect after state-changing POSTs, unauthenticated control of the session cookie path attribute, and poisoning of self-referential links; CR/LF cannot be injected, so header splitting/XSS is not possible.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Adminer before 5.5.0 Open Redirect via X-Forwarded-Prefix","id":"CVE-2026-34959","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"open_redirect","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"barebox Out-of-Bounds Read in DHCP Option Parsing","id":"CVE-2026-34960"},"packages":[],"prev":{"headline":"Openvswitch: open vswitch: denial of service via malformed ftp epasv command","id":"CVE-2026-34956"},"products":["adminer"],"published":"2026-08-25","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":"2026-08-26","vendors":["vrana"]},"summary":"Attackers can exploit unvalidated X-Forwarded-Prefix headers to redirect users to malicious sites or manipulate session cookies in Adminer.","url":"https://insights.sbomify.com/CVE-2026-34959/"}