{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-125371 in the wild and no public exploit code.","exposure":"","fix":"No fix has been published for CVE-2026-125371 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-125371 is a medium-severity vulnerability in tinyproxy, published on 9 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-125371 and fix it if it is affected.\n\nWhat it is: CVE-2026-125371 is a medium-severity vulnerability in tinyproxy, published on 9 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-125371 in the wild and no public exploit code.\n\nAffected product: tinyproxy. 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-2026-125371/ (Markdown: https://insights.sbomify.com/CVE-2026-125371/index.md)","id":"CVE-2026-125371","markdown":"https://insights.sbomify.com/CVE-2026-125371/index.md","name":"CVE-2026-125371","record":{"aliases":["DEBIAN-CVE-2026-125371","GHSA-qwr3-mfw3-8qfr","UBUNTU-CVE-2026-125371"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-187","name":"Partial String Comparison"}],"description":"Tinyproxy through 1.11.3 contains an access control bypass vulnerability in acl_string_processing() in src/acl.c that compares only trailing hostname characters without checking DNS label boundaries. Attackers controlling the PTR record for their source IP, such as untrusted.net, can satisfy an 'Allow trusted.net' entry to use the proxy despite deny-by-default ACLs.","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":"Tinyproxy through 1.11.3 Hostname ACL Allow-List Bypass via Suffix Match","id":"CVE-2026-125371","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"REBUILD before 4.5.3 Authorization Bypass via Feeds Details and Comments Endpoints","id":"CVE-2026-125372"},"nickname":null,"packages":[],"prev":{"headline":"Kubero 3.0.0 through 3.1.1 Authentication Bypass via Hardcoded JWT Secret","id":"CVE-2026-125370"},"products":["tinyproxy"],"published":"2026-11-09","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-11-10","vendors":["tinyproxy"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-125371/"}