{"answers":{"affected":"1 open source package ship an affected version, including ceph.","exploited":"There is no known exploitation of CVE-2026-54330 in the wild and no public exploit code.","fix":"Upgrade ceph to a fixed version for your release line: 19.2.6 or 20.2.4.","what":"CVE-2026-54330 is a high-severity authentication bypass vulnerability in ceph, published on 27 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-2026-54330 and fix it if it is affected.\n\nWhat it is: CVE-2026-54330 is a high-severity authentication bypass vulnerability in ceph, published on 27 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-2026-54330 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- ceph (Bitnami): affected from 19.0.0; fixed in 19.2.6, 20.2.4\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-2026-54330/ (Markdown: https://insights.sbomify.com/CVE-2026-54330/index.md)","id":"CVE-2026-54330","markdown":"https://insights.sbomify.com/CVE-2026-54330/index.md","name":"CVE-2026-54330","record":{"aliases":["AZL-98340","BIT-ceph-2026-54330","DEBIAN-CVE-2026-54330","ECHO-ba60-36e6-9bcf","GHSA-rmjq-ffrm-j6vj","MINI-f5cf-gmhp-52ch","MINI-gm7c-rf8m-pf63","UBUNTU-CVE-2026-54330","USN-8867-1"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Ceph Object Gateway","requires_auth":"low_privilege","summary":"Attackers can escalate privileges by adding unsigned headers to presigned URLs in Ceph RGW, bypassing intended access controls.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":8.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the Ceph Object Gateway (RGW) SigV4 handler does not reject requests that carry x-amz-* headers absent from the signed header set, allowing anyone holding a presigned URL to attach arbitrary unsigned x-amz-* headers that RGW will honor. AWS S3 requires every x-amz-* header on a SigV4 request to be signed and rejects requests bearing additional unsigned headers, but RGW validates only the headers listed in X-Amz-SignedHeaders and ignores any extra ones, so they take effect without being covered by the signature. By adding such headers to a presigned PUT URL, an attacker can grant themselves more capabilities than the URL's signer intended and escalate their privileges. This issue is fixed in versions 20.2.4 and 19.2.6.","ecosystems":["Bitnami"],"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":"Ceph RGW SigV4 handler accepts unsigned x-amz-* headers on presigned requests, allowing privilege escalation","id":"CVE-2026-54330","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":1,"n_references":3,"next":{"headline":"GoPacket's sFlow ExtendedGatewayFlow decoder: unbounded attacker-controlled allocation (104-byte UDP datagram -\u003e up to 16 GiB make) -\u003e unauthenticated remote DoS","id":"CVE-2026-54332"},"packages":[{"ecosystem":"Bitnami","fixed":["19.2.6","20.2.4"],"introduced":["19.0.0","20.0.0"],"last_affected":[],"package":"ceph","purl":"pkg:bitnami/ceph","source":"BIT-ceph-2026-54330"}],"prev":{"headline":"Snipe-IT: Cross-Tenant Accessory Injection in Snipe-IT API","id":"CVE-2026-54329"},"products":["ceph"],"published":"2026-08-27","related":[],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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":"total"},"state":"PUBLISHED","updated":"2026-09-01","vendors":["ceph"]},"summary":"Attackers can escalate privileges by adding unsigned headers to presigned URLs in Ceph RGW, bypassing intended access controls.","url":"https://insights.sbomify.com/CVE-2026-54330/"}