{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2026-34475 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-34475 is a medium-severity vulnerability in varnish-software Varnish Cache, published on 27 Mar 2026."},"fix_prompt":"Check this codebase for CVE-2026-34475 and fix it if it is affected.\n\nWhat it is: CVE-2026-34475 is a medium-severity vulnerability in varnish-software Varnish Cache, published on 27 Mar 2026. \nExploitation: There is no known exploitation of CVE-2026-34475 in the wild and no public exploit code.\n\nAffected product: varnish-software Varnish Cache. 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-2026-34475/ (Markdown: https://insights.sbomify.com/CVE-2026-34475/index.md)","id":"CVE-2026-34475","markdown":"https://insights.sbomify.com/CVE-2026-34475/index.md","name":"CVE-2026-34475","record":{"aliases":["DEBIAN-CVE-2026-34475","GHSA-m9gq-cmcj-p62x","OESA-2026-2677","OESA-2026-3045","ROOT-OS-DEBIAN-11-CVE-2026-34475","ROOT-OS-DEBIAN-12-CVE-2026-34475","UBUNTU-CVE-2026-34475"],"analysis":null,"analysis_generated_by":null,"assigner":"mitre","cpe":[{"product":"varnish_enterprise","vendor":"varnish-software"},{"product":"vinyl_cache","vendor":"vinyl-cache"}],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-180","name":"Incorrect Behavior Order: Validate Before Canonicalize"}],"description":"Varnish Cache before 8.0.1 and Varnish Enterprise before 6.0.16r12, in certain unchecked req.url scenarios, mishandle URLs with a path of / for HTTP/1.1, potentially leading to cache poisoning or authentication bypass.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Varnish Cache before 8.0.1 and Varnish Enterprise before 6.0.16r12, in certain unchecked req.url scenarios, mishandle URLs with a path of /","id":"CVE-2026-34475","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Apache SkyWalking MCP: Server-Side Request Forgery via SW-URL Header in MCP Server","id":"CVE-2026-34476"},"packages":[],"prev":{"headline":"Information disclosure in n/a","id":"CVE-2026-34474"},"products":["Varnish Cache"],"published":"2026-03-27","related":[{"cvss_score":6.5,"headline":"Memory corruption in n/a","id":"CVE-2023-41104","kev_date_added":null,"published":"2023-08-23"},{"cvss_score":5.4,"headline":"Other in Varnish Cache","id":"CVE-2025-30346","kev_date_added":null,"published":"2025-03-21"},{"cvss_score":4,"headline":"Denial of service in Varnish Cache","id":"CVE-2026-40394","kev_date_added":null,"published":"2026-04-12"},{"cvss_score":4,"headline":"Denial of service in Varnish Enterprise","id":"CVE-2026-40395","kev_date_added":null,"published":"2026-04-12"},{"cvss_score":4,"headline":"Information disclosure in Varnish Enterprise","id":"CVE-2025-30347","kev_date_added":null,"published":"2025-03-21"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-27","vendors":["varnish-software"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-34475/"}