{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-71191 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-71191 is a medium-severity missing authorization vulnerability in OpenStack Swift, published on 5 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-71191 and fix it if it is affected.\n\nWhat it is: CVE-2026-71191 is a medium-severity missing authorization vulnerability in OpenStack Swift, published on 5 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-71191 in the wild and no public exploit code.\n\nAffected product: OpenStack Swift. 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-2026-71191/ (Markdown: https://insights.sbomify.com/CVE-2026-71191/index.md)","id":"CVE-2026-71191","markdown":"https://insights.sbomify.com/CVE-2026-71191/index.md","name":"CVE-2026-71191","record":{"aliases":["DEBIAN-CVE-2026-71191","GHSA-hqwm-h3rj-hvcf","UBUNTU-CVE-2026-71191"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"OpenStack Swift S3API","requires_auth":"low_privilege","summary":"Attackers can read arbitrary objects via unsigned headers in presigned URLs, bypassing signature validation in OpenStack Swift S3API.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[],"cvss":{"score":6,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"In OpenStack Swift through 2.38.0, S3API middleware does not enforce that semantic x-amz-* headers are covered by the SigV4 signature on presigned URL requests. An attacker who obtains a presigned PUT URL can inject an unsigned X-Amz-Copy-Source header, causing Swift to perform a server-side copy from an arbitrary source object using the signer's authorization context. The attacker can read any object the signer has access to, provided the target project_id, container name, and object name are known. This affects all deployments using the default s3_acl=false configuration.","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":"Missing authorization in Swift","id":"CVE-2026-71191","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Missing authorization in Swift","id":"CVE-2026-71192"},"packages":[],"prev":{"headline":"Denial of service in Swift","id":"CVE-2026-71190"},"products":["Swift"],"published":"2026-08-05","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":"2026-08-06","vendors":["OpenStack"]},"summary":"Attackers can read arbitrary objects via unsigned headers in presigned URLs, bypassing signature validation in OpenStack Swift S3API.","url":"https://insights.sbomify.com/CVE-2026-71191/"}