{"answers":{"affected":"2 open source packages ship an affected version, including rustfs. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-22043 exists.","fix":"Upgrade rustfs to 1.0.0-alpha.79 or later.","what":"CVE-2026-22043 is a medium-severity vulnerability in rustfs, published on 8 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-22043 and fix it if it is affected.\n\nWhat it is: CVE-2026-22043 is a medium-severity vulnerability in rustfs, published on 8 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-22043 exists.\n\nAffected packages and fixed versions:\n- rustfs (crates.io): affected from 1.0.0-alpha.13; fixed in 1.0.0-alpha.79\n- rustfs (crates.io): affected from 1.0.0-alpha.13; fixed in 1.0.0-alpha.79\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-2026-22043/ (Markdown: https://insights.sbomify.com/CVE-2026-22043/index.md)","id":"CVE-2026-22043","markdown":"https://insights.sbomify.com/CVE-2026-22043/index.md","name":"CVE-2026-22043","record":{"aliases":["GHSA-xgr5-qc6w-vcg9"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["privilege_escalation","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Distributed object storage","requires_auth":"low_privilege","summary":"A flawed IAM short-circuit in RustFS allows restricted service accounts to self-issue unrestricted credentials, enabling privilege escalation and policy bypass.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"rustfs","vendor":"rustfs"}],"cvss":{"score":5.7,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-522","name":"Insufficiently Protected Credentials"},{"id":"CWE-284","name":"Improper Access Control"},{"id":"CWE-269","name":"Improper Privilege Management"}],"description":"RustFS is a distributed object storage system built in Rust. In versions 1.0.0-alpha.13 through 1.0.0-alpha.78, a flawed `deny_only` short-circuit in RustFS IAM allows a restricted service account or STS credential to self-issue an unrestricted service account, inheriting the parent’s full privileges. This enables privilege escalation and bypass of session/inline policy restrictions. Version 1.0.0-alpha.79 fixes the issue.","ecosystems":["crates.io"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"RustFS has IAM deny_only Short-Circuit that Allows Privilege Escalation via Service Account Minting","id":"CVE-2026-22043","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"privilege_escalation","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"GLPI is Vulnerable to Authenticated SQL Injection","id":"CVE-2026-22044"},"packages":[{"ecosystem":"crates.io","fixed":["1.0.0-alpha.79"],"introduced":["1.0.0-alpha.13"],"last_affected":[],"package":"rustfs","purl":null,"source":"GHSA-xgr5-qc6w-vcg9"},{"ecosystem":"crates.io","fixed":["1.0.0-alpha.79"],"introduced":["1.0.0-alpha.13"],"last_affected":[],"package":"rustfs","purl":"pkg:cargo/rustfs","source":"GHSA-xgr5-qc6w-vcg9"}],"prev":{"headline":"RustFS has IAM Incorrect Authorization in ImportIam that Allows Privilege Escalation","id":"CVE-2026-22042"},"products":["rustfs"],"published":"2026-01-08","related":[{"cvss_score":9.8,"headline":"RustFS has a gRPC Hardcoded Token Authentication Bypass","id":"CVE-2025-68926","kev_date_added":null,"published":"2025-12-30"},{"cvss_score":9.1,"headline":"Rust has Critical Stored XSS in Preview Modal, leading to Administrative Account Takeover","id":"CVE-2026-27822","kev_date_added":null,"published":"2026-02-25"},{"cvss_score":8.8,"headline":"RustFS Path Traversal Vulnerability","id":"CVE-2025-68705","kev_date_added":null,"published":"2026-01-07"},{"cvss_score":8.3,"headline":"RustFS: Missing admin authorization on notification target endpoints allows unauthenticated configuration of event webhooks","id":"CVE-2026-40937","kev_date_added":null,"published":"2026-04-22"},{"cvss_score":8.1,"headline":"RustFS's Missing Post Policy Validation leads to Arbitrary Object Write","id":"CVE-2026-27607","kev_date_added":null,"published":"2026-02-25"},{"cvss_score":7.7,"headline":"RustFS sourceIp bypass via spoofed X-Forwarded-For/Real-IP headers","id":"CVE-2026-21862","kev_date_added":null,"published":"2026-02-03"},{"cvss_score":6.9,"headline":"RustFS Logs Sensitive Credentials in Plaintext","id":"CVE-2026-24762","kev_date_added":null,"published":"2026-02-03"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-01-08","vendors":["rustfs"]},"summary":"A flawed IAM short-circuit in RustFS allows restricted service accounts to self-issue unrestricted credentials, enabling privilege escalation and policy bypass.","url":"https://insights.sbomify.com/CVE-2026-22043/"}